Lattice Semiconductor
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SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C 20549

FORM 10-K

COMMISSION FILE NUMBER: 0-18032

/X/ Annual report pursuant to Section 13 or 15(d) of the Securities Exchange
Act of 1934 for the fiscal year ended March 28, 1998 or
/ / Transition report pursuant to Section 13 or 15(d) of the Securities
Exchange Act of 1934
For the transition period from to

LATTICE SEMICONDUCTOR CORPORATION

(Exact name of Registrant as specified in its Charter)


DELAWARE 93-0835214
(State of Incorporation) (I.R.S Employer Identification No.)

5555 NE MOORE COURT, HILLSBORO, OREGON 97124-6421
(Address of principal executive offices) (Zip Code)


Registrant's telephone number, including area code: (503) 681-0118

SECURITIES REGISTERED PURSUANT TO SECTION 12(b) OF THE ACT: NONE
SECURITIES REGISTERED PURSUANT TO SECTION 12(g) OF THE ACT:

Title of Class Name of Exchange
Common Stock, $.01 par value NASDAQ

Preferred Share Purchase Rights None

Indicate by check mark whether the Registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
Registrant was required to file such reports), and (2) has been subject to
such filing requirements for the past 90 days.

Yes X No
--- ---

Indicate by check mark if disclosure of delinquent filers pursuant to
Item 405 of Regulation S-K is not contained herein, and will not be
contained, to the best of the Registrant's knowledge, in definitive proxy or
information statements incorporated by reference in Part III of this Form
10-K or any amendment to this Form 10-K.

Yes X No
--- ---

As of June 18, 1998, the aggregate market value of the shares of voting
stock of the Registrant held by non-affiliates was approximately $349 million.
Shares of Common Stock held by each officer and director and by each person who
owns 5% or more of the outstanding Common Stock have been excluded in that such
persons may be deemed affiliates. This determination of affiliate status is not
necessarily a conclusive determination for other purposes.

As of June 18, 1998, 23,557,979 shares of the Registrant's common stock
were outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

1. Portions of the Annual Report to Stockholders for the fiscal year ended
March 28, 1998 are incorporated by reference in Part II hereof.

2. Portions of the definitive proxy statement of the Registrant to be
filed pursuant to Regulation 14A for the 1998 Annual Meeting of Stockholders to
be held on August 10, 1998 are incorporated by reference in Part III hereof.
LATTICE SEMICONDUCTOR CORPORATION
FORM 10-K
ANNUAL REPORT
TABLE OF CONTENTS

<TABLE>
<CAPTION>
Item of Form 10-K Page
- ----------------- ----
<S> <C> <C>
PART I

Item 1 - Business. . . . . . . . . . . . . . . . . . . . . . . 2
Item 2 - Properties. . . . . . . . . . . . . . . . . . . . . . . 15
Item 3 - Legal Proceedings . . . . . . . . . . . . . . . . . . . 16
Item 4 - Submission of Matters to a Vote of Security Holders . . 16
Item 4(a) - Executive Officers of the Registrant. . . . . . . . . . 17


PART II

Item 5 - Market for the Registrant's Common Stock and Related
Stockholder Matters . . . . . . . . . . . . . . . . . . 19
Item 6 - Selected Financial Data . . . . . . . . . . . . . . . . 19
Item 7 - Management's Discussion and Analysis of Financial
Condition and Results of Operations . . . . . . . . . . 20
Item 8 - Financial Statements and Supplementary Data . . . . ... 20
Item 9 - Changes in and Disagreements with Accountants on
Accounting and Financial Disclosure . . . . . . . . . . 20

PART III

Item 10 - Directors and Executive Officers of the Registrant. . . 21
Item 11 - Executive Compensation. . . . . . . . . . . . . . . . . 21
Item 12 - Security Ownership of Certain Beneficial Owners
and Management. . . . . . . . . . . . . . . . . . . . . 21
Item 13 - Certain Relationships and Related Transactions. . . . . 21


PART IV

Item 14 - Exhibits, Financial Statement Schedules and Reports
on Form 8-K . . . . . . . . . . . . . . . . . . . . . . 22

Signatures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Financial Statement Schedules. . . . . . . . . . . . . . . . . . . . .S-1
</TABLE>

1
ITEM 1. BUSINESS

This Report contains forward-looking statements within the meaning of Section
27A of the Securities Act of 1933, as amended, and Section 21E of the
Securities Exchange Act of 1934, as amended. Actual results could differ
materially from those projected in the forward-looking statements as a result
of the factors set forth in "Factors Affecting Future Results" and elsewhere
in this Report.

GENERAL

Lattice Semiconductor Corporation (the "Company") designs, develops and
markets high performance programmable logic devices ("PLDs") and related
development system software. The Company is the inventor and world's leading
supplier of in-system programmable ("ISP-TM-") PLDs. PLDs are standard
semiconductor components that can be configured by the end customer as
specific logic functions, enabling shorter design cycle times and reduced
development costs. Lattice products are sold worldwide through an extensive
network of independent sales representatives and distributors, primarily to
original equipment manufacturers ("OEMs") of communications, computing,
industrial controls and military systems. Lattice was founded in 1983 and is
based in Hillsboro, Oregon.

PLD MARKET BACKGROUND

Three principal types of digital integrated circuits are used in most
electronic systems: microprocessors, memory and logic. Microprocessors are
used for control and computing tasks, memory is used to store programming
instructions and data, and logic is employed to manage the interchange and
manipulation of digital signals within a system. Logic contains
interconnected groupings of simple logical "AND" and logical "OR" functions,
commonly described as "gates". Typically, complex combinations of individual
gates are required to implement the specialized logic functions required for
systems applications. While system designers use a relatively small number of
standard architectures to meet their microprocessor and memory needs, they
require a wide variety of logic circuits in order to achieve end product
differentiation.

Logic circuits are found in a wide range of today's electronic systems
including communications equipment, computers, peripherals, instrumentation,
industrial controls and military systems. According to Integrated Circuit
Engineering Corporation, a semiconductor market research firm, logic
accounted for approximately 35 % of the estimated $108 billion worldwide
digital integrated circuit market in 1997. The logic market encompasses,
among other segments, standard logic, custom-designed application specific
integrated circuits ("ASICs", which include conventional gate-arrays,
standard cells and full custom logic circuits), and PLDs.

Manufacturers of electronic systems are increasingly challenged to bring
differentiated products to market quickly. These competitive pressures often
preclude the use of custom-designed ASICs, which generally entail significant
design risks and time delay. Standard logic products, an alternative to
custom-designed ASICs, limit a manufacturer's flexibility to adequately
customize an end system. Programmable logic addresses this inherent dilemma.
PLDs are standard products, purchased by systems manufacturers in a "blank"
state, that can be custom configured into a virtually unlimited number of
specific logic functions by programming the device with electrical signals.
PLDs give system designers the ability to quickly create their own custom
logic functions to provide product differentiation without sacrificing rapid
time to market. Certain PLD products, including the Company's, are
reprogrammable, meaning that the logic configuration can be modified, if
needed, after the initial

2
programming. In-system programmable PLDs, first pioneered by the Company,
extend the flexibility of standard reprogrammable PLDs by allowing the system
designer to configure and reconfigure the logic functions of the PLD with
standard 5-volt or 3.3-volt power supplies without removing the PLD from the
system board.

Several common PLD market segments currently exist. These include low-density
PLDs (less than 1,000 logic gates) and high-density PLDs (greater than 1,000
logic gates). High-density PLD devices include devices based on both complex
PLD ("CPLD") architectures and field programmable gate array ("FPGA")
architectures.

Products in each high-density PLD architecture are generally optimal for
different types of logic functions, although many logic functions can be
implemented using either type of architecture. CPLDs are characterized by a
regular building block structure of wide-input logic cells, termed
macrocells, and use of a centralized logic interconnect scheme. CPLDs are
optimal for control logic applications, such as state machines, bus
arbitration, encoders, decoders and sequencers. FPGAs are characterized by a
narrow-input logic cell and use a distributed interconnect scheme. FPGAs are
optimal for register intensive and data path logic applications such as
interface logic and arithmetic functions. The Company believes that a
substantial portion of high-density PLD customers utilize both CPLD and FPGA
architectures within a single system design, partitioning logic functions
across multiple devices to optimize overall system performance and cost.

TECHNOLOGY

The Company believes that electrically erasable CMOS (Lattice's
"E2CMOS-Registered Trademark-") is the preferred process technology for PLD
products due to its inherent performance, reprogrammability and testability
benefits. E2CMOS technology, through its fundamental ability to be programmed
and erased electronically, serves as the foundation for the Company's ISP
products.

IN-SYSTEM PROGRAMMABLE (ISP) PRODUCTS AND TECHNOLOGY

The Company has pioneered the development of ISP products, based on a
proprietary technology, which affords it a competitive advantage in the PLD
market. In contrast to standard PLDs, ISP devices can be configured and
reconfigured by the system designer without being removed from the printed
circuit board. Standard E2CMOS programmable logic devices require 12-volt
electrical signals for programming and therefore must be removed from the
printed circuit board and programmed using stand alone, specialized hardware,
while ISP devices can be programmed with standard 5-volt or 3.3-volt
electrical signals. ISP devices offer enhanced flexibility versus standard
PLDs, providing a number of important benefits to a system manufacturer
across the full spectrum of an electronic system product cycle. ISP devices
can allow customers to reduce design cycle times, accelerate time to market,
reduce prototyping costs, reduce manufacturing costs and lower inventory
requirements. ISP devices can also provide customers the opportunity to
perform simplified and cost-effective field reconfiguration through a data
file transferred by computer disk or serial data signal.

E2CMOS PROCESS TECHNOLOGY

The Company's current silicon product offerings, including its ISP products,
are based on the Company's proprietary E2CMOS manufacturing process
technology, termed UltraMOS-Registered Trademark-. The Company's current
production processes, UltraMOS IV, UltraMOS V and UltraMOS VI are sub-micron
CMOS technologies.

3
In comparison to bipolar technology, at one time the dominant technology for
PLDs, E2CMOS technology consumes less power and generates less heat while
operating at comparable speed. Additionally, in contrast to
one-time-programmable bipolar PLDs, E2CMOS PLDs are fully erasable and
reprogrammable, providing greater end customer design flexibility and
allowing the PLD manufacturer to fully test all programmable elements in a
device prior to shipment. An alternative CMOS technology, Erasable
Programmable Read Only Memory ("EPROM"), provides the same low power
consumption benefits as E2CMOS, but requires ultraviolet light exposure for
erasure, necessitating expensive quartz windowed packages and limiting
testability. Antifuse and Static Random Access Memory ("SRAM") technologies,
used primarily in the manufacture of high-density FPGAs, offer certain
advantages for very dense logic devices, but also have significant drawbacks
when compared with E2CMOS. Antifuse technology is non-erasable,
non-reprogrammable and subject to lengthy initial programming times that can
hinder usage in volume production applications. SRAM technology is volatile
(erases when electrical power is removed), and as such programmable SRAM
FPGAs require additional non-volatile memory, typically on a separate device,
to store programming code. This adds cost and printed circuit board area to a
design, and results in the devices not being completely functional at initial
system power-up.

PRODUCTS

ISP PRODUCTS

SILICON. The Company first entered the ISP market in fiscal 1993 and
currently offers six distinct families of ISP products, each consisting of
multiple devices. The Company is currently shipping over 200 speed, package
and temperature range combinations of its ISP products.

ISPLSI-Registered Trademark- 1000/E: The Company's original ISP family
utilizes an innovative, proprietary CPLD architecture incorporating familiar
GAL-Registered Trademark- ("Generic Array Logic") based logic building
blocks. This family provides performance of up to 125 MHz (7.5 nanosecond
propagation delay), densities of 2,000 to 8,000 gates and is available in 44-
to 128-pin standard surface mount packages.

ISPLSI 2000/V: The ispLSI 2000 family utilizes a CPLD architecture designed
for input/output ("I/O") intensive applications and offers industry leading
performance. This family provides performance of up to 180 MHz (5.0
nanosecond propagation delay), densities of 1,000 to 6,000 gates and is
available in 44- to 176-pin standard surface mount packages. The ispLSI 2000V
family, an extension of the ispLSI 2000 family, operates using the emerging
3.3-volt power supply standard. Offered with a range of density, performance
and package specifications, the ispLSI 2000V family is targeted towards
low-voltage system applications in the computing and communication markets.

ISPLSI 3000/E: The ispLSI 3000 family incorporates an enhanced CPLD
architecture to target higher density applications while retaining high
performance. This family provides densities of 7,000 to 22,000 gates,
performance of up to 125 MHz (7.5 nanosecond propagation delay), and is
available in 160- to 432-pin surface mount packages.

ISPLSI 6000: The ispLSI 6000 family extends the Company's high-density
CPLD density range to 25,000 gates. This family utilizes an innovative
cell-based architecture that combines a general purpose high-density CPLD
with memory and other function specific circuit blocks. Offered with
performance of up to 77 MHz (15.0 nanosecond

4
propagation delay), the ispLSI 6000 family allows integration of complete
logic subsystems in the communications, computing and multimedia markets.

ISPGAL-Registered Trademark-: The ispGAL, a proprietary product family,
combines in-system programmability with the industry standard 22V10
low-density architecture. Offered with performance of up to 200 MHz, (5.0
nanosecond propagation delay), the ispGAL family is available in both 5-volt
and 3.3-volt operating supply versions.

ISPGDX-TM-: The ispGDX family, introduced in fiscal 1998, extends in-system
programmability to the circuit board level using an innovative, new digital
cross-point switch architecture. Offered with propagation delays as low as
5.0 nanoseconds, up to 160 I/O and complete pin-to-pin signal routing, the
ispGDX is targeted towards digital signal interconnect and interface
applications.

The Company plans to continue to introduce new families of ISP products, as
well as improve the performance of existing product families based on market
needs.

SOFTWARE DEVELOPMENT TOOLS. All of the Company's ISP products are supported
by the Company's ispDS-Registered Trademark- software development tools and
ispDS+-TM- software development tools (referred to as "fitters"). Designed to
be a low cost, fully integrated development tool, ispDS runs under the
Microsoft Windows operating system on a personal computer. ispDS software
allows a customer to enter and verify a logic design, perform logic
minimization, assign I/O pins and critical speed paths, simulate timing,
execute automatic place and route tasks and download a program to an ISP
device. Designed to provide a seamless integration of the Company's
development tools with standard design environments, ispDS+ software
leverages customers' existing investments in third-party CAE tools. Optimized
for HDL synthesis, ispDS+ software supports all popular third party CAE
development tool environments running on IBM compatible personal computers as
well as workstations from Sun Microsystems and Hewlett-Packard. The Company
offers ispDS+ products supporting common third party CAE design tool
environments, including ABEL, Cadence, Data I/O, Exemplar, Logical Devices,
Mentor Graphics, OrCAD, Synario, Synopsys, Synplicity and ViewLogic. ispDS+
software allows a customer to compile a design developed in a third party
environment, assign I/O pins and critical speed paths, simulate and analyze
timing, execute automatic place and route tasks and download a program to an
ISP device. In fiscal 1998, the Company released new versions of its existing
ispDS and ispDS+ software development tools to enhance performance,
functionality and ease of use.

The Company also provides several software algorithms that support in-system
programming of the Company's ISP devices. These software products include
ispCODE-TM-, Turbo ispDOWNLOAD-TM-, ispREMOTE-TM- and ispATE-TM-. ispATE
enables ISP product programming to be integrated into automatic test
equipment ("ATE") on the manufacturing floor.

During fiscal 1998, the number of installed seats of the Company's software
development tools, as measured by the Company, grew from over 17,000 to
approximately 25,000. The Company plans to continue to enhance and expand its
development tool offerings.

NON-ISP PRODUCTS

The Company offers the industry's broadest line of low-density CMOS PLDs
based on its 16 families of GAL products offered in over 180 speed, power,
package and temperature range combinations. GAL devices range in complexity
from approximately 200 to 1,000 logic gates and are typically assembled in
20-, 24-and 28-pin

5
standard dual in-line packages and in 20- and 28-pin standard plastic leaded
chip carrier packages. The Company offers the industry standard GAL16V8,
GAL20V8, GAL22V10, GAL20RA10 and GAL20XV10 architectures in a variety of
speed grades, with propagation delays as low as 3.5 nanoseconds, the highest
performance in the industry. The Company also offers several proprietary
extension architectures, the GAL26CV12, GAL18V10, GAL16VP8, GAL20VP8,
GAL6001/2, GAL16V8Z and GAL20V8Z, each of which is optimized for specific
applications. The Company also offers a full range of 3.3-volt industry
standard architectures, the GAL16LV8, GAL20LV8, GAL22LV10 and GAL26CLV12 in a
variety of speed grades, with propagation delays as low as 3.5 nanoseconds,
the highest performance in the industry.

The Company's non-ISP products are supported by industry standard software
and hardware development tools marketed by independent manufacturers
specifically for PLD applications.

PRODUCT DEVELOPMENT

The Company places great emphasis on product development and believes that
continued investment in the development of new products that exploit market
trends is required to maintain its competitive position. The Company's
product development activities emphasize new proprietary ISP products,
performance enhancement and cost reduction of existing products, improvements
of its E2CMOS processes technologies and extension and enhancement of its
software development tools. Product development activities occur in the
Company's Hillsboro, Oregon headquarters, its Milpitas, California product
development center, and its Shanghai, China design center.

Research and development expenses were $26.8 million, $27.8 million and $32.0
million in fiscal years 1996, 1997 and 1998, respectively. The Company
expects to continue to make significant investments in research and
development in the future.

OPERATIONS

The Company does not manufacture its silicon wafers. The Company has
historically maintained strategic relationships with large semiconductor
manufacturers in order to source its finished silicon wafers, allowing the
Company to focus its internal resources on product, process and market
development. In addition, assembly is performed for the Company by outside
suppliers. The Company performs certain test operations and reliability and
quality assurance processes internally, as the Company believes it can add
significant customer value in these areas. The Company has achieved ISO 9001
quality certification, an indication of the Company's high internal
operational standards.

WAFER FABRICATION

The majority of the Company's silicon wafer requirements are currently
supplied by Seiko Epson Corporation ("Seiko Epson") in Japan pursuant to an
agreement with S MOS Systems, Inc. ("S MOS"), an affiliated U.S. distributor
of Seiko Epson. See "Licenses and Agreements - Seiko Epson/S MOS." The
Company negotiates wafer volumes, prices and terms with Seiko Epson and S MOS
on a periodic basis. In addition, the Company receives silicon wafers from
United Microelectronics Corporation ("UMC") in Taiwan pursuant to a series of
agreements entered into in 1995. Wafer prices and other purchase terms
related to this commitment are subject to periodic adjustment. See "
Licenses and Agreements - UMC." A significant interruption in supply from
Seiko Epson

6
through S MOS or from UMC would have a material adverse effect on the
Company's business. See "Factors Affecting Future Results."

ASSEMBLY

After wafer fabrication and initial testing, the Company ships wafers to
independent subcontractors for assembly. During assembly, wafers are
separated into individual die and encapsulated in plastic or ceramic
packages. Presently, the Company has qualified long-term assembly partners in
Hong Kong, Malaysia, the Philippines, South Korea, Taiwan and the United
States.

TESTING

The Company electrically tests the die on each wafer prior to shipment for
assembly. Following assembly, prior to customer shipment, each product
undergoes final testing using test equipment, techniques and quality
assurance procedures. Final testing on certain products is performed at
independent contractors in Malaysia, the Philippines, South Korea and the
United States.

MARKETING, SALES AND CUSTOMERS

The Company sells its products directly to end customers through a network of
independent sales representatives and indirectly through a network of
distributors. The Company utilizes a direct sales management and field
applications engineering organization in combination with manufacturers'
representatives and distributors to reach a broad base of potential end
customers. The Company's end customers are primarily original equipment
manufacturers in the fields of communications, computing, industrial controls
and military systems. The Company believes its distribution channel is a
cost-effective means of reaching end customers.

At March 28, 1998, the Company had 20 sales representatives and five
distributors in the United States and Canada. In North America, Arrow
Electronics, Inc., Hamilton Hallmark, Insight Electronics, Inc. and Marshall
Industries provide nationwide distribution, while Future Electronics provides
regional distribution coverage in Canada. The Company has established sales
channels in over 30 foreign countries through a network of over 30 sales
representatives and distributors. Approximately one-half of the Company's
North American sales and most of its foreign sales are made through
distributors.

The Company protects each of its North American distributors and some of its
foreign distributors against reductions in published prices, and expects to
continue this policy in the foreseeable future. The Company also allows
returns from these distributors of unsold products under certain conditions.
For these reasons, the Company does not recognize revenue until products are
resold by these distributors.

The Company provides technical and marketing assistance to its end customers
and sales force with engineering staff based in the Company's headquarters,
design centers and selected field sales offices. The Company maintains 22
domestic and international sales offices where the Company's field sales
managers and applications engineers are based. These offices are located in
the metropolitan areas of Atlanta, Austin, Boston, Chicago, Dallas, Los
Angeles, Minneapolis, Orlando, Portland, Raleigh, San Diego, San Jose, Hong
Kong, London, Milan, Munich, Paris, Seoul, Shanghai, Stockholm, Taipei and
Tokyo.

7
International revenues, including those from Canada, accounted for 48%, 49%
and 51% of the Company's revenues in fiscal 1996, 1997 and 1998,
respectively. Revenues from Europe were $37.9 million, $39.9 million and
$61.2 million, and from Asia were $52.4 million, $52.6 million and $ 55.9
million, in fiscal 1996, 1997 and 1998, respectively. Both international and
domestic revenues are generally invoiced in U.S. dollars, with the exception
of sales in Japan, which are invoiced in yen.

The Company's products are sold to a large and diverse group of customers. No
individual OEM customer accounted for more than 6% of revenue in either
fiscal 1996, 1997 or 1998. One distributor accounted for approximately 11% of
revenue in fiscal 1996. No distributor accounted for more than 10% of
revenue in either fiscal 1997 or fiscal 1998.

The Company's sales are primarily executed against purchase orders for
standard products. Customers frequently revise quantities and delivery
schedules, without penalty. The Company therefore does not believe that
backlog as of any given date is indicative of future revenue.

COMPETITION

The semiconductor industry overall is intensely competitive and is
characterized by rapid technological change, rapid rates of product
obsolescence and price erosion. The Company's current and potential
competitors include a broad range of semiconductor companies, ranging from
very large, established companies to emerging companies, many of which have
greater financial, technical, manufacturing, marketing and sales resources
than the Company.

The principal competitive factors in the PLD market include silicon product
features, price, customer support, and sales, marketing and distribution
strength. The availability of competitive software development tools is also
critical. In addition to product features such as speed, power consumption,
reprogrammability, design flexibility and reliability, competition in the PLD
market occurs on the basis of price and market acceptance of specific
products and technology. The Company believes that it competes favorably with
respect to each of these factors. The Company intends to continue to address
these competitive factors by working to continually introduce product
enhancements and new products, by seeking to establish its products as
industry standards in their respective markets, and by working to reduce the
manufacturing cost of its products over their respective life cycles.

In the ISP PLD market, the Company primarily competes directly with Altera,
Advanced Micro Devices ("AMD") and Xilinx, all of which offer competing
products. The Company also competes indirectly with other PLD suppliers as
well as other semiconductor companies providing non-PLD based logic
solutions. As the Company and these other companies seek to expand their
markets, competition may increase.

In the non-ISP, low-density, PLD market, the Company competes primarily with
AMD, a licensee of the Company's GAL patents, which offers a full line of
E2CMOS GAL-compatible PLDs. Atmel and Cypress Semiconductor offer products
based on similar and competing CMOS technologies and architectures; however,
these companies do not offer full product lines.

Although to date the Company has not experienced significant competition from
companies located outside the United States, such companies may become a more
significant competitive factor in the future. As the Company and its current
competitors seek to expand their markets, competition may increase. Any such
increases in competition could have a material adverse effect on the
Company's operating results.

8
PATENTS

The Company seeks to protect its products and wafer fabrication process
technologies primarily through patents, trade secrecy measures, copyrights,
mask work protection, trademark registrations, licensing restrictions,
confidentiality agreements and other approaches designed to protect
proprietary information. There can be no assurance that others may not
independently develop competitive technology not covered by the Company's
intellectual property rights or that measures taken by the Company to protect
its technology will be effective.

The Company holds domestic, European and Japanese patents on its PLD products
and has patent applications pending in the United States, Japan and Europe.
There can be no assurance that pending patent applications or other
applications that may be filed will result in issued patents, or that any
issued patents will survive challenges to their validity. Although the
Company believes that its patents have value, there can be no assurance that
the Company's patents, or any additional patents that may be issued in the
future, will provide meaningful protection from competition. The Company
believes its success will depend primarily upon the technical expertise,
experience, creativity and the sales and marketing abilities of its
personnel.

Patent and other proprietary rights infringement claims are common in the
semiconductor industry. There can be no assurance that, with respect to
claims made against the Company, the Company could obtain a license on terms
or under conditions that would not have a material adverse effect on the
Company.

LICENSES AND AGREEMENTS

SEIKO EPSON/S MOS

S MOS, an affiliated U.S. distributor of Seiko Epson, has agreed to provide
manufactured wafers to the Company in quantities based on six-month rolling
forecasts provided by the Company. The Company has committed to buy certain
minimum quantities of wafers per month. Wafers for the Company's products are
manufactured in Japan at Seiko Epson's wafer fabrication facilities and are
delivered to the Company by S MOS. Prices for the wafers obtained from S MOS
are reviewed and adjusted periodically and may be adjusted to reflect
prevailing currency exchange rates. See "Factors Affecting Future Results."
Daniel S. Hauer, a member of the Company's Board of Directors, is Chairman of
the Board of Directors of S MOS.

In July 1994, the Company entered into an advance production payment
agreement with Seiko Epson and S MOS, under which it advanced to Seiko Epson
$42 million during fiscal 1995 to be used by Seiko Epson to finance
additional sub-micron semiconductor wafer manufacturing capacity. Under the
terms of the agreement, the advance is to be repaid in the form of advanced
technology sub-micron semiconductor wafers. In conjunction with the advance
production payment agreement, the Company also paid $2 million during fiscal
1995 for the development of sub-micron process technology and the fabrication
of engineering wafers. These agreements call for wafers to be supplied by
Seiko Epson through S MOS pursuant to a purchase agreement concluded with S
MOS. As of March 28, 1998, substantially all wafers pursuant to these
agreements had been received by the Company.

In March 1997, the Company entered into a second advance production payment
agreement with Seiko Epson and SMOS under which it agreed to advance
approximately $86 million, payable over two years, to Seiko Epson to

9
finance construction of an eight-inch sub-micron semiconductor wafer
manufacturing facility. The timing of the payments is related to certain
milestones in the development of the facility. Under the terms of the
agreement, the advance is to be repaid with semiconductor wafers over a
multi-year period. The agreement calls for wafers to be supplied by Seiko
Epson through S MOS pursuant to purchase agreements concluded with S MOS. The
Company also has an option under the agreement to advance Seiko Epson an
additional $60 million for additional wafer supply under similar terms. The
first payment under this agreement, approximately $17.0 million, was made
during fiscal 1997. During fiscal 1998, the Company made two additional
payments aggregating approximately $34.2 million.

UMC

The Company entered into a series of agreements with UMC in September 1995
pursuant to which the Company agreed to join UMC and several other companies
to form a separate Taiwanese company, UICC, for the purpose of building and
operating an advanced semiconductor manufacturing facility in Taiwan,
Republic of China. Under the terms of the agreement, the Company invested
approximately $49.7 million, paid in three installments, for an approximate
10% equity interest in UICC and the right to receive a percentage of the
facility's wafer production at market prices.

In October 1997, the UICC foundry was substantially destroyed by fire. UMC,
the majority owner of UICC, has informed the Company that this loss is
insured and has begun the process of rebuilding the foundry. Further,
alternative capacity arrangements have been made available to the Company by
UMC. Based on these assurances from UMC, management believes the Company will
not be materially adversely affected by this event.

AMD

In November 1987, as part of the settlement of a patent infringement suit
against the Company, the Company and Monolithic Memories Inc. ("MMI",
subsequently merged with AMD) entered into an agreement cross-licensing each
other's patents covering programmable and reprogrammable logic devices based
on patent applications having a first filing date prior to November 1989. The
agreement was subsequently amended in May 1989 by the Company and AMD, the
successor to the rights and obligations of MMI in the original agreement. The
amendment covers those patents relating to PLD products which are based on
patent applications originally filed by the Company, MMI and AMD prior to
December 31, 1991. The license, with respect to certain patents asserted by
AMD, ceases to cover the Company's current principal products if the Company
is acquired by a semiconductor manufacturer with sales in excess of a stated
amount or by certain types of companies headquartered in designated Asian
countries. No license has been granted to either party for any copyright
work, trademark or process technology and, therefore, AMD has not been
licensed to use the GAL trademark on its products.

FACTORS AFFECTING FUTURE RESULTS

The Company believes that its future operating results will be subject to
quarterly variations based upon a wide variety of factors, including the
cyclical nature of both the semiconductor industry and the end markets
addressed by the Company's products, general economic conditions in countries
where the Company's products are sold, price erosion, timing of new product
introductions, product obsolescence, scheduling, rescheduling and
cancellation of large orders, competitive factors, ability to develop and
implement new process technologies, fluctuations in manufacturing yields,
ability to achieve volume production at Seiko Epson's and UICC's new

10
eight-inch wafer fabs, substantial adverse currency exchange rate movements,
availability of manufacturing capacity and wafer supply and potential
litigation expenses. Due to these and other factors, the Company's past
results are a less useful predictor of future results than is the case in
more mature and stable industries. The Company has increased its level of
operating expenses and investment in manufacturing capacity in anticipation
of future growth in revenues, primarily from increased sales of its ISP
products. To the extent that this revenue growth does not materialize, the
Company's operating results would be adversely affected.

The market price of the Company's common stock could be subject to
significant fluctuations in response to variations in quarterly operating
results, shortfalls in revenues or earnings from levels expected by
securities analysts, other factors such as announcements of technological
innovations or new products by the Company or by the Company's competitors,
government regulations, developments in patent or other proprietary rights,
and developments in the Company's relationships with parties to collaborative
agreements. In addition, the stock market can experience significant price
fluctuations. These fluctuations often are unrelated to the operating
performance of the specific companies whose stocks are traded. Broad market
fluctuations, as well as economic conditions generally and in the
semiconductor industry specifically, could adversely affect the market price
of the Company's common stock.

The semiconductor industry is highly cyclical and has been subject to
significant downturns at various times that have been characterized by
diminished product demand, production overcapacity and accelerated erosion of
average selling prices. The Company's rate of growth in recent periods has
been positively and negatively impacted by trends in the semiconductor
industry. Any material imbalance in industry-wide production capacity
relative to demand, shift in industry capacity toward products competitive
with the Company's products, reduced demand or reduced growth in demand or
other factors could result in a decline in the demand for or the prices of
the Company's products and could have a material adverse effect on the
Company's operating results.

Because of the rapid rate of technological change in the semiconductor
industry, the Company's success will ultimately depend in large part on its
ability to introduce new products on a timely basis that meet a market need
at a competitive price with acceptable margins as well as enhancing the
performance of its existing products. The success of new products, including
the Company's ISP product families, depends on a variety of factors,
including product selection, timely and efficient completion of product
design, timely and efficient implementation of manufacturing and assembly
processes, product performance, quality and reliability in the field and
effective sales and marketing. Because new product development commitments
must be made well in advance of sales, new product decisions must anticipate
both future demand and the technology that will be available to supply that
demand. New and enhanced products are continually being introduced into the
Company's markets by others, and these products can be expected to affect the
competitive environment in the markets in which they are introduced. There is
no assurance that the Company will be successful in enhancing its existing
products or in selecting, developing, manufacturing, marketing and selling
new products.

Future revenue growth will be largely dependent on market acceptance of the
Company's new and proprietary products, including its ISP product families,
and market acceptance of the Company's proprietary software development
tools. There can be no assurance that the Company's product and process
development efforts will be successful or that new products, including the
Company's ISP products, will continue to achieve market acceptance. If the
Company were unable to successfully define, develop and introduce competitive
new products in a timely manner, its future operating results would be
adversely affected.

11
The semiconductor industry is intensely competitive and is characterized by
rapid technological change, sudden price fluctuations, general price erosion,
rapid rates of product obsolescence, periodic shortages of materials and
manufacturing capacity and variations in manufacturing costs and yields. The
Company's competitive position is impacted by all of these factors and by
industry competition for effective sales and distribution channels. The
Company's existing and potential competitors range from established major
domestic and international semiconductor companies to emerging companies.
Many of the Company's competitors have substantially greater financial,
technological, manufacturing, marketing and sales resources than the Company.
The Company faces direct competition from companies that have developed or
licensed similar technology and from licensees of the Company's products and
technology. The Company also faces indirect competition from a wide variety
of semiconductor companies offering products and solutions based on
alternative technologies. Although to date the Company has not experienced
significant competition from companies located outside the United States,
such companies may become a more significant competitive factor in the
future. As the Company and its current competitors seek to expand their
markets, competition may increase, which could have an adverse effect on the
Company's operating results. Competitors' development of new technologies
that have price/performance characteristics superior to the Company's
technologies could adversely effect the Company's results of operations.
There can be no assurance that the Company will be able to develop and market
new products successfully or that the products introduced by others will not
render the Company's products or technologies non-competitive or obsolete.
The Company expects that its markets will become more competitive in the
future.

The future success of the Company is dependent, in part, on its ability to
attract and retain highly qualified technical and management personnel,
particularly highly skilled engineers involved in development of new
products, both silicon and software, and process technology. Competition for
such personnel is intense. There can be no assurance that the Company will be
able to retain its existing key technical and management personnel or attract
additional qualified employees in the future. The loss of key technical or
management personnel could delay product development cycles or otherwise have
a material adverse effect on the Company's business.

The Company does not manufacture finished silicon wafers; however, its
products require wafers manufactured with state-of-the-art fabrication
equipment and techniques. Accordingly, the Company's strategy has been to
maintain relationships with large semiconductor manufacturers for the
production of its wafers. Currently all of its silicon wafers are
manufactured by either Seiko Epson in Japan or UMC in Taiwan. A significant
interruption in supply from Seiko Epson, through S MOS, Seiko Epson's
affiliated U.S. distributor, or from UMC would have a material adverse effect
on the Company's business.

The Company's finished silicon wafers are assembled and packaged by
independent subcontractors located in Hong Kong, Malaysia, the Philippines,
South Korea, Taiwan, and the United States. Although the Company has not yet
experienced significant problems or interruptions in supply from its assembly
contractors, any prolonged work stoppages or other failure of these
contractors to supply finished products could have a material adverse effect
on the Company's operating results.

International revenues accounted for 48%, 49% and 51% of the Company's
revenues for fiscal 1996, 1997 and 1998, respectively. The Company believes
that international revenues will continue to represent a significant
percentage of revenues. International revenues and operations may be
adversely affected by regional economic

12
conditions, the imposition of governmental controls, export license
requirements, restrictions on the export of technology, political
instability, trade restrictions, changes in tariffs and difficulties in
staffing and managing international operations.

The Company currently depends on foreign manufacturers -- Seiko Epson, a
Japanese company, and UMC, a Taiwanese company -- for the manufacture of all
of its finished silicon wafers, and anticipates depending on UICC, a
Taiwanese company, for the manufacture of a portion of its finished silicon
wafers. In addition, after wafer manufacturing is completed and each wafer is
tested, products are assembled by subcontractors in Hong Kong, Malaysia, the
Philippines, South Korea and Taiwan. Although the Company has yet not
experienced significant problems or interruption in supply from its
subcontractors, the social, economic and political situations in these
countries can be volatile, and any prolonged work stoppages or other
disruptions in the Company's ability to manufacture and assemble its products
would have a material adverse effect on the Company's results of operations.
Furthermore, economic risks, such as recession, exchange rate volatility,
changes in tax laws, tariffs, or freight rates, or interruptions in air
transportation, could have a material adverse effect on the Company's results
of operations.

The Company depends upon wafer suppliers to produce wafers with acceptable
yields and to deliver them to the Company in a timely manner. Substantially
all of the Company's revenues are derived from products based on E2CMOS
process technology. Successful implementation of the Company's proprietary
E2CMOS process technology, UltraMOS, requires a high degree of coordination
between the Company and its wafer supplier. Therefore, significant lead time
is required to reach volume production at a new wafer supply location such as
Seiko Epson's or UICC's new eight-inch wafer fabs. Accordingly, there can be
no assurance that volume production at Seiko Epson's or UICC's new eight-inch
wafer fabs will be achieved in the near term or at all. The manufacture of
high performance E2CMOS semiconductor wafers is a complex process that
requires a high degree of technical skill, state-of-the-art equipment and
effective cooperation between the wafer supplier and the circuit designer to
produce acceptable yields. Minute impurities, errors in any step of the
fabrication process, defects in the masks used to print circuits on a wafer
and other factors can cause a substantial percentage of wafers to be rejected
or numerous die on each wafer to be non-functional. As is common in the
semiconductor industry, the Company has from time to time experienced in the
past, and expects that it will experience in the future, production yield
problems and delivery delays. Any prolonged inability to obtain adequate
yields or deliveries could adversely affect the Company's operating results.

The Company expects that, as is customary in the semiconductor business, it
will in the future seek to convert its fabrication process technology to
larger wafer sizes, to smaller device geometries or to new or additional
suppliers in order to maintain or enhance its competitive position. Such
conversions entail inherent technological risks that could adversely affect
yields and delivery times and could have a material adverse impact on the
Company's operating results. To a considerable extent, the Company's ability
to execute its strategies will depend upon its ability to maintain and
enhance its advanced process technologies. As the Company does not presently
operate its own wafer fabrication or process development facility, the
Company depends upon silicon wafer manufacturers to provide the facilities
and support for its process development. In light of this dependency and the
intensely competitive nature of the semiconductor industry, there is no
assurance that either process technology development or timely product
introduction can be sustained in the future.

13
In addition, other unanticipated changes in or disruptions of the Company's
wafer supply arrangements could reduce product availability, increase cost or
impair product quality and reliability. Many of the factors that could result
in such changes are beyond the Company's control. For example, a disruption
of operations at Seiko Epson's or UMC's manufacturing facilities as a result
of a work stoppage, fire, earthquake or other natural disaster, would cause
delays in shipments of the Company's products and would have a material
adverse effect on the Company's operating results.

The Company's wafer purchases from Seiko Epson are denominated in Japanese
yen. In the past, the dollar has lost substantial value with respect to the
yen. There is no assurance that the value of the dollar with respect to the
yen will not again experience substantial deterioration. Any substantial
continued deterioration of dollar-yen exchange rates could have a material
adverse effect on the Company's results of operations.

Worldwide manufacturing capacity for silicon wafers is limited and inelastic.
Therefore, significant increases in demand or interruptions in supply could
adversely affect the Company. Through fiscal 1998, the Company has been
successful in obtaining adequate wafer capacity commitments; however, it has
in the past experienced delays in obtaining wafers. Although current
commitments are anticipated to be adequate through fiscal 1999, there can be
no assurance that existing capacity commitments will be sufficient to permit
the Company to satisfy all of its customers' demand in future periods. The
Company negotiates wafer prices and certain wafer supply commitments with
Seiko Epson, S MOS and UMC on an annual basis, and, in some cases, as
frequently as semiannually. Moreover, wafer prices and commitments are
subject to continuing review and revision by the parties. There can be no
assurance that Seiko Epson, S MOS or UMC will not reduce their allocations of
wafers or increase prices to the Company in future periods or that any such
reduction in supply could be offset pursuant to arrangements with alternate
sources of supply. If any substantial reduction of supply or substantial
price increase were to occur, the Company's operating results could be
materially adversely affected.

In an effort to secure additional wafer supply, the Company may from time to
time consider various arrangements, including joint ventures, equity
investments, advanced purchase payments, loans, or similar arrangements with
independent wafer manufacturers in exchange for committed production
capacity. Such arrangements have become common within the industry as
independent wafer manufacturers increasingly seek to require their customers
to share a portion of the cost of capital intensive wafer fabrication
facilities. In 1994, the Company entered into an advanced production payment
agreement with Seiko Epson pursuant to which it advanced a total of $42
million to Seiko Epson. In September 1995, the Company entered into an
agreement with UMC under which it invested a total of $49.7 million for an
approximate 10% equity interest in a separate Taiwanese company, UICC. In
March 1997, the Company entered into a second advanced production payment
agreement with Seiko Epson pursuant to which it plans to advance up to $150
million to Seiko Epson. To the extent the Company pursues any other such
transactions with Seiko Epson, UMC or any other wafer manufacturers, such
transactions could entail even greater levels of investment requiring the
Company to seek additional equity or debt financing to fund such activities.
There can be no assurance that any such additional funding could be obtained
when needed or, if available, on terms acceptable to the Company.

The Company's success depends in part on its proprietary technology. While
the Company attempts to protect its proprietary technology through patents,
copyrights and trade secrets, it believes that its success will depend more
upon technological expertise, continued development of new products, and
successful market penetration of its silicon and software products. There can
be no assurance that the Company will be able to protect its

14
technology or that competitors will not be able to develop similar technology
independently. The Company currently has a number of United States and
foreign patents and patent applications. There can be no assurance that the
claims allowed on any patents held by the Company will be sufficiently broad
to protect the Company's technology, or that any patents will issue from any
application pending or filed by the Company. In addition, there can be no
assurance that any patents issued to the Company will not be challenged,
invalidated or circumvented or that the rights granted thereunder will
provide competitive advantages to the Company.

The semiconductor industry is generally characterized by vigorous protection
and pursuit of intellectual property rights and positions, which have on
occasion resulted in protracted litigation that utilizes cash and management
resources, which can have a significant adverse effect on operating results.
There can be no assurance that intellectual property claims will not be made
against the Company in the future or that in the event of such a claim, the
Company will be able to obtain a license on terms or under conditions that
would not have a material adverse impact on the Company.

The Company is currently working to address the potential impact of the Year
2000 on the processing of date-sensitive information by the Company's
internal computer systems, including its electronic interfaces to
distributor, customer and supplier systems. At present, the Company has
completed an initial assessment of its potential exposure. Based on this
assessment, the Company does not anticipate that resolution of potential
internal Year 2000 issues will have a material adverse impact on the
Company's operating results. However, there can be no assurance that the
Company's computer systems or the systems of the Company's major
distributors, suppliers, customers or financial service providers will
completely address all internal Year 2000 issues in a timely manner. In the
event that Year 2000 issues create significant disruption in the operations
of the Company or any of the Company's major distributors, suppliers,
customers or financial service providers, the Company's operating results
could be materially adversely affected.

EMPLOYEES

As of March 28, 1998, the Company had 569 full-time employees. The Company
believes that its future success will depend, in part, on its ability to
continue to attract and retain highly skilled technical, marketing and
management personnel.

None of the Company's employees is subject to a collective bargaining
agreement. The Company has never experienced a work stoppage and considers
its employee relations good.


ITEM 2. PROPERTIES

The Company's corporate offices, testing and principal research and design
facilities are located in two adjacent buildings owned by the Company in
Hillsboro, Oregon comprising a total of 90,000 square feet. The Company's
executive, administrative, marketing and production activities are also
located at these facilities. The Company leases a 41,000 square foot research
and design facility in Milpitas, California. This lease expires in February,
2001.

15
The Company leases space in various locations in the United States for its
domestic sales offices, and also leases space in Hong Kong, London, Munich,
Paris, Seoul, Stockholm, Taipei and Tokyo for its international sales
offices. The Company owns a 13,000 square foot research and development
facility and approximately 6,000 square feet of dormitory facilities in
Shanghai.

ITEM 3. LEGAL PROCEEDINGS.

There are no material pending legal proceedings to which the Company is a
party or to which any of its property is subject.

ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.

Not applicable.

16
ITEM 4(a). EXECUTIVE OFFICERS OF THE REGISTRANT.

As of June 25, 1998, the executive officers of the Company are as set forth
below.

<TABLE>
<CAPTION>
Name Age Position
- -------------------- --- --------------------------------------------
<S> <C> <C>
Cyrus Y. Tsui 52 President, Chief Executive Officer and
Chairman of the Board

Steven A. Laub 39 Senior Vice President and Chief Operating
Officer

Stephen A. Skaggs 35 Senior Vice President, Chief Financial
Officer and Secretary

Stephen M. Donovan 47 Corporate Vice President, Sales

Jonathan K. Yu 57 Corporate Vice President, Business
Development

Martin R. Baker 42 Vice President and General Counsel

Randy D. Baker 39 Vice President, Manufacturing

Albert L. Chan 48 Vice President and General Manager, Lattice
Silicon Valley

Thomas J. Kingzett 51 Vice President, Reliability and Quality
Assurance

Stanley J. Kopec 47 Vice President, Corporate Marketing

Rodney F. Sloss 54 Vice President, Finance

Kenneth K. Yu 50 Vice President and Managing Director, Lattice
Asia
</TABLE>

Executive officers of the Company are appointed by the Board of Directors
to serve at the discretion of the Board and hold office until the officers'
successors are appointed.

Cyrus Y. Tsui joined the Company in September 1988 as President, Chief
Executive Officer and Director, and in March 1991 was named Chairman of the
Board. From 1987 until he joined the Company, Mr. Tsui was Corporate Vice
President and General Manager of the Programmable Logic Division of AMD. He was
Vice President and General Manager of the Commercial Products Division of
Monolithic Memories Incorporated from 1983 until the merger with AMD in 1987.
Mr. Tsui has held technical and managerial positions in the

17
semiconductor industry for over 25 years.  He has worked in the programmable
logic industry since its inception.

Steven A. Laub joined the Company in June 1990 as Vice President and General
Manager. He was elected Senior Vice President and Chief Operating Officer in
August 1996.

Stephen A. Skaggs joined the Company in December 1992 as Director, Corporate
Development. He was elected Senior Vice President, Chief Financial Officer
and Secretary in August 1996.

Stephen M. Donovan joined the Company in October 1989 and has served as
Director of Marketing and Director of International Sales. He was elected
Vice President, International Sales in August 1993. He was elected Corporate
Vice President, Sales, in May 1998. Mr. Donovan has worked in the
programmable logic industry since 1982.

Jonathan K. Yu joined the Company in February 1992 as Vice President,
Operations. He was elected Corporate Vice President, Business Development in
August 1996. Mr. Yu has held technical and managerial positions in the
semiconductor industry for over 30 years.

Martin R. Baker joined the Company in January 1997 as Vice President and
General Counsel. From 1991 until he joined the Company, Mr. Baker held legal
positions with Altera Corporation.

Randy D. Baker joined the Company in April 1985 as Manager, Manufacturing and
was promoted in 1988 to Director, Manufacturing. He was elected Vice
President, Manufacturing in August 1996. Mr. Baker has worked in the
semiconductor industry for over 15 years.

Albert L. Chan joined the Company in May 1989 as California Design Center
Manager and was promoted in 1991 to Director, California Product Development
Center. He was elected Vice President, California Product Development in
August 1993. He was elected Vice President and General Manager, Lattice
Silicon Valley, in August 1997. Mr. Chan has worked in the programmable logic
industry since 1983.

Thomas J. Kingzett joined the Company in July 1992 as Director, Reliability
and Quality Assurance. He was elected Vice President, Reliability and Quality
Assurance in May 1998. Mr. Kingzett has worked in the semiconductor industry
for over 25 years.

Stanley J. Kopec joined the Company in August 1992 as Director, Marketing. He
was elected Vice President, Corporate Marketing in May 1998. Mr. Kopec has
worked in the programmable logic industry since 1985.

Rodney F. Sloss joined the Company in May 1994 as Vice President, Finance.
From 1992 to 1994, Mr. Sloss served as Chief Financial Officer of The
Alexander Haagen Company, a real estate developer.

Kenneth K. Yu joined the Company in January 1991 as Director of Process
Technology. He has served as Managing Director, Lattice Asia since November
1992 and was elected Vice President, Lattice Asia in August 1993. Mr. Yu has
held technical and managerial positions in the semiconductor industry for
over 20 years.

18
PART II


ITEM 5. MARKET FOR THE REGISTRANT'S COMMON STOCK AND
RELATED STOCKHOLDER MATTERS.

The Company's common stock is traded on the over-the-counter market and
prices are quoted on the Nasdaq National Market under the symbol "LSCC". The
following table sets forth the high and low sale prices for the common stock for
the last two fiscal years and for the period since March 28, 1998. On June 18,
1998, the last reported sale price of the common stock was $27 5/8. As of June
18, 1998, the Company had approximately 343 stockholders of record.

<TABLE>
<CAPTION>
High Low
---- ---
<S> <C> <C>
Fiscal 1997:
First Quarter . . . . . . . . . . . . . $36 1/4 $21 5/8
Second Quarter. . . . . . . . . . . . . 31 1/2 19 3/4
Third Quarter . . . . . . . . . . . . 47 27 1/2
Fourth Quarter. . . . . . . . . . . . . 54 7/8 39 3/4

Fiscal 1998:
First Quarter . . . . . . . . . . . . . $62 5/8 $41 1/2
Second Quarter. . . . . . . . . . . . . 74 1/2 54 7/8
Third Quarter . . . . . . . . . . . . . 67 1/2 45
Fourth Quarter. . . . . . . . . . . . . 57 39 3/4

Fiscal 1999:
First Quarter (through June 18, 1998) . $54 5/8 $25 5/8
</TABLE>

The payment of dividends on the common stock is within the discretion of the
Company's Board of Directors. The Company intends to retain earnings to
finance the growth of its business. The Company has not paid cash dividends
on its common stock and the Board of Directors does not expect to declare
cash dividends on the common stock in the near future.


ITEM 6. SELECTED FINANCIAL DATA.

The information required by this Item is set forth in the Company's 1998
Annual Report to Stockholders at page 11 under the caption "Selected Financial
Data", which information is incorporated herein by reference.

19
ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
OF OPERATIONS.

The information required by this Item is set forth in the Company's 1998
Annual Report to Stockholders at pages 8 through 10 under the caption
"Management's Discussion and Analysis of Financial Condition and Results of
Operations", which information is incorporated herein by reference.

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA.


FINANCIAL STATEMENTS

The information required by this Item is set forth in the Company's 1998
Annual Report to Stockholders, at pages 12 through 23, which information is
incorporated herein by reference.

<TABLE>
<CAPTION>
PAGE
----
<S> <C>
FINANCIAL STATEMENT SCHEDULES

Report of Independent Accountants on Financial Statement Schedule . . S-1

Schedule VIII - Valuation and qualifying accounts . . . . . . . . . . S-2
</TABLE>

No other schedules are included because the required information is
inapplicable, not required or is presented in the financial statements or
related notes thereto.


ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
FINANCIAL DISCLOSURE.

Not applicable.

With the exception of the information expressly incorporated by reference
from the Annual Report to Stockholders into Parts II and IV of this Form 10-K,
the Company's Annual Report to Stockholders is not to be deemed filed as part of
this Report.

20
PART III


Certain information required by Part III is omitted from this Report in that
the Company will file its definitive proxy statement for the Annual Meeting
of Stockholders to be held on August 10, 1998, pursuant to Regulation 14A of
the Securities Exchange Act of 1934 (the "Proxy Statement"), not later than
120 days after the end of the fiscal year covered by this Report, and certain
information included in the Proxy Statement is incorporated herein by
reference. With the exception of the information expressly incorporated by
reference from the Proxy Statement, the Company's Proxy Statement is not to
be deemed filed as a part of this report.

ITEM 10. DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT.

The information required by this Item with respect to directors of the
Company is included under "Proposal 1: Election of Directors" in the
Company's Proxy Statement, which information is incorporated herein by
reference. Information with respect to executive officers of the Company is
included under Item 4(a) of Part I of this Report and is incorporated herein
by reference.

ITEM 11. EXECUTIVE COMPENSATION.

The information required by this Item with respect to executive compensation
is included under "Proposal 1: Election of Directors-Directors," "Executive
Compensation" and "Comparison of Total Cumulative Stockholder Return" in the
Company's Proxy Statement, which information is incorporated herein by
reference.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT.

The information required by this Item is included in the Company's Proxy
Statement under the caption "Security Ownership of Certain Beneficial Owners
and Management", which information is incorporated herein by reference.

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS.

The information required by this Item is included under "Proposal 1: Election
of Directors - Transactions with Management" in the Company's Proxy
Statement, which information is incorporated herein by reference.

21
PART IV

ITEM 14. EXHIBITS, FINANCIAL STATEMENT SCHEDULES AND REPORTS ON FORM 8-K.

(a)(1) and (2) FINANCIAL STATEMENTS AND FINANCIAL STATEMENT SCHEDULES.

The information required by this Item is included under
Item 8 of this Report.

(a)(3) EXHIBITS.

3.1 The Company's Certificate of Incorporation, as amended
(including (i) the Company's Certificate Eliminating
Matters set forth in Certificates of Designation with
respect to Series A, Series B, Series D and Series E,
dated February 15, 1990 (ii) the Company's Restated
Certificate of Incorporation, as amended, incorporated
by reference to Exhibit 3.1 filed with the Company's
Annual Report on Form 10-K for the fiscal year ended
March 31, 1990; (iii) the Company's Certificate of
Designation of Rights, Preferences and Privileges of
Series A Participating Preferred Stock incorporated by
reference to Exhibit 1 filed with the Company's
Registration Statement on Form 8-A on September 13,
1991; and (iv) the Certificate of Amendment, dated
September 8, 1993, of the Company's Certificate of
Incorporation, filed as an exhibit hereto).

3.2 The Company's Bylaws, as amended (including (i) the
Company's Amended Bylaws, incorporated by reference to
Exhibit 3.2 filed with the Company's Annual Report on
Form 10-K for the fiscal year ended March 30, 1991; (ii)
Amendment to the Company's Bylaws authorized by the Board
of Directors on May 24, 1991, filed as an exhibit hereto;
(iii) Amendment to the Company's Bylaws authorized by the
Board of Directors on May 16, 1995, filed as an exhibit
hereto; and (iv) Amendment to the Company's Bylaws
authorized by the Board of Directors on February 4, 1997,
filed as an exhibit hereto).

4.1 Preferred Shares Rights Agreement dated as of September
11, 1991 between Lattice Semiconductor Corporation and
First Interstate Bank of Oregon, N.A., as Rights Agent
(Incorporated by reference to Exhibit 1 filed with the
Company's Registration Statement on Form 8-A on September
13, 1991).

10.3 Patent License Agreement dated November 10, 1989 between
Monolithic Memories, Inc. and Lattice Semiconductor
Corporation, as amended (Incorporated by reference to
Exhibit 10.3, File No. 33-31231).(1)

10.7 Form of Distributor Agreement (Incorporated by reference
to Exhibit 10.6, File No. 33-31231).

10.9 * Lattice Semiconductor Corporation 1988 Stock Incentive
Plan, as amended (Incorporated by reference to Exhibit
10.9 filed with the Company's Annual Report on Form 10-K
for the fiscal year ended March 28, 1992).

10.10 * Form of Stock Option Agreement (Incorporated by
reference to Exhibit 10.9, File No. 33-31231).

10.11 * Employment Letter dated September 2, 1988 from Lattice
Semiconductor Corporation to Cyrus Y. Tsui (Incorporated
by reference to Exhibit 10.10, File No. 33-31231).

10.12 Form of Proprietary Rights Agreement (Incorporated by
reference Exhibit 10.11, File No. 33-31231).

10.13 * Outside Directors Compensation Plan (Incorporated by
reference to Exhibit 10.12, File No. 33-31231).

22
10.14  * Amended Outside Directors Stock Option Plan
(Incorporated by reference to Exhibit 10.13, File No.
33-35427).

10.15 * 1993 Outside Directors Stock Option Plan (Incorporated
by reference to Exhibit 10.15 filed with the Company's
Annual Report on Form 10-K for the fiscal year ended
April 3, 1993).

10.16 * Employee Stock Purchase Plan, as amended (Incorporated
by reference to Exhibit 10.16 filed with the Company's
Annual Report on Form 10-K for the fiscal year ended
April 3, 1993).

10.17 Advance Production Payment Agreement dated July 5, 1994
among Lattice Semiconductor Corporation and Seiko Epson
Corporation and S MOS Systems, Inc. (Incorporated by
reference to Exhibit 10.17 filed with the Company's
Annual Report on Form 10-K for the fiscal year ended
April 1, 1995). (1)

10.18 Engineering Payment Agreement dated July 5, 1994 among
Lattice Semiconductor Corporation and Seiko Epson
Corporation and S MOS Systems, Inc. (Incorporated by
reference to Exhibit 10.18 filed with the Company's
Annual Report on Form 10-K for the fiscal year ended
April 1, 1995).

10.19 Bridge Capacity Letter dated September 12, 1995 between
Lattice Semiconductor Corporation and United
Microelectronics Corporation. (Incorporated by reference
to Exhibit 10.1 filed with the Company's Current Report
on Form 8-K dated September 28, 1995)(1).

10.20 Foundry Venture Side Letter dated September 13, 1995
among Lattice Semiconductor Corporation, United
Microelectronics Corporation and FabVen (Incorporated by
reference to Exhibit 10.2 filed with the Company's
Current Report on Form 8-K dated September 28, 1995)(1).

10.21 FabVen Foundry Capacity Agreement dated as of August ___,
1995 among FabVen, United Microelectronics Corporation
and Lattice Semiconductor Corporation (Incorporated by
reference to Exhibit 10.3 filed with the Company's
Current Report on Form 8-K dated September 28, 1995)(1).

10.22 Foundry Venture Agreement dated as of August ___, 1995,
between Lattice Semiconductor Corporation and United
Microelectronics Corporation (Incorporated by reference
to Exhibit 10.4 filed with the Company's Current Report
on Form 8-K dated September 28, 1995)(1).

23
10.23  Advance Production Payment Agreement dated March 17, 1997
among Lattice Semiconductor Corporation and Seiko Epson
Corporation and S MOS Systems, Inc. (Incorporated by
reference to Exhibit 10.23 filed with the Company's
Annual Report on Form 10-K for the fiscal year ended
March 29, 1997)(1).

10.24 * Lattice Semiconductor Corporation 1996 Stock Incentive
Plan (Incorporated by reference to Exhibit 4.1 filed on
Form S-8 dated November 7, 1996).

10.25 Form of North American Sales Representative Agreement

11.1 Computation of Net Income Per Share (2)

13.1 1998 Annual Report to Stockholders.

21.1 Subsidiaries of the Registrant.

23.1 Consent of Independent Accountants.

24.1 Power of Attorney (see pages 26-27).

27.1 Financial Data Schedule for Year Ended March 28, 1998.

27.2 Financial Data Schedules for the Years Ended March 29,
1997 and March 30, 1996, respectively, restated for the
effect of the adoption of Statement of Financial
Accounting Standard No. 128, ("SFAS 128"), "Earnings
Per Share".

27.3 Financial Data Schedules for the Quarters Ended December
28, 1996, September 28, 1996 and June 29, 1996,
restated for the effect of the adoption of SFAS 128.

27.4 Financial Data Schedules for the Quarters Ended
December 27, 1997, September 27, 1997 and June 28,
1997, restated for the effect of the adoption of SFAS
128.
- -------------

24
(1)  Pursuant to Rule 24b-2 under the Securities Exchange Act of 1934,
confidential treatment has been granted to portions of this exhibit,
which portions have been deleted and filed separately with the
Securities and Exchange Commission.

(2) Incorporated by reference to Note 1 to the Consolidated Financial
Statements in the Company's Annual Report to Stockholders for the
fiscal year ended March 28, 1998.

* Management contract or compensatory plan or arrangement required to be
filed as an Exhibit to this Annual Report on Form 10-K pursuant to
Item 14(c) thereof.


(b) No reports on Form 8-K were filed during the last quarter of fiscal
1998.

(c) See (a)(3) above.

(d) See (a)(1) and (2) above.


25
SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the Registrant has duly caused this Report to be signed on
its behalf by the undersigned, thereunto duly authorized, in the City of
Hillsboro, State of Oregon, on the 25th of June, 1998.

LATTICE SEMICONDUCTOR CORPORATION

By: /s/Stephen A. Skaggs
-----------------------------------------
Stephen A. Skaggs, Senior Vice President,
Chief Financial Officer and Secretary

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears
below constitutes and appoints Cyrus Y. Tsui and Stephen A. Skaggs, jointly and
severally, his attorneys-in-fact, each with the power of substitution, for him
in any and all capacities, to sign any amendments to this Report on Form 10-K,
and to file the same, with exhibits thereto and other documents in connection
therewith, with the Securities and Exchange Commission, hereby ratifying and
confirming all that each of said attorneys-in-fact, or his substitute or
substitutes, may do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Exchange Act of 1934, this Report
has been signed below by the following persons on the 25th day of June, 1998 on
behalf of the Registrant and in the capacities indicated:

<TABLE>
<CAPTION>
Signature Title
- --------------------- -------------------------------------------
<S> <C>
/s/Cyrus Y. Tsui President, Chief Executive Officer
- --------------------- and Chairman of the Board (Principal Executive
Cyrus Y. Tsui Officer)


/s/Stephen A. Skaggs Senior Vice President, Chief Financial Officer and
- --------------------- Secretary (Principal Financial Officer)
Stephen A. Skaggs


/s/Mark O. Hatfield Director
- ---------------------
Mark O. Hatfield


/s/Daniel S. Hauer Director
- ---------------------
Daniel S. Hauer


26
<CAPTION>
Signature Title
- --------------------- -------------------------------------------
<S> <C>
/s/Harry A. Merlo Director
- ---------------------
Harry A. Merlo


/s/Larry W. Sonsini Director
- ---------------------
Larry W. Sonsini


/s/Douglas C. Strain Director
- ---------------------
Douglas C. Strain
</TABLE>

27
REPORT OF INDEPENDENT ACCOUNTANTS
ON FINANCIAL STATEMENT SCHEDULE


To the Board of Directors
of Lattice Semiconductor Corporation


Our audits of the consolidated financial statements referred to in our report
dated April 15, 1998 appearing in the 1998 Annual Report to Stockholders of
Lattice Semiconductor Corporation (which report and consolidated financial
statements are incorporated by reference in this Annual Report on Form 10-K)
also included an audit of the Financial Statement Schedule listed in Item
14(a)(2) of this Form 10-K. In our opinion, this Financial Statement Schedule
presents fairly, in all material respects, the information set forth therein
when read in conjunction with the related consolidated financial statements.


PRICE WATERHOUSE LLP

Portland, Oregon
April 15, 1998






S-1
Schedule VIII


LATTICE SEMICONDUCTOR CORPORATION

VALUATION AND QUALIFYING ACCOUNTS

(IN THOUSANDS)

<TABLE>
<CAPTION>
COLUMN A COLUMN B COLUMN C COLUMN D COLUMN E COLUMN F
-------- ------------ ---------- ---------- ---------- ---------
CHARGED TO
BALANCE AT CHARGED TO OTHER WRITE-OFFS BALANCE
BEGINNING OF COSTS AND ACCOUNTS NET OF AT END OF
CLASSIFICATION PERIOD EXPENSES (DESCRIBE) RECOVERIES PERIOD
-------------- ------------ ---------- ---------- ---------- ---------
<S> <C> <C> <C> <C> <C>
Year ended March 30, 1996:
Allowance for deferred tax asset... $2,819 $(483) -- -- $2,336
Allowance for doubtful accounts.... 743 70 -- (13) 800
------ ----- ---- ---- ------
$3,562 $(413) $ -- $(13) $3,136
------ ----- ---- ---- ------
------ ----- ---- ---- ------
Year ended March 29, 1997:
Allowance for deferred tax asset... $2,336 $(340) -- -- $1,996
Allowance for doubtful accounts.... 800 70 -- 4 874
------ ----- ---- ---- ------
$3,136 $(270) $ -- $ 4 $2,870
------ ----- ---- ---- ------
------ ----- ---- ---- ------
Year ended March 28, 1998:
Allowance for deferred tax asset... $1,996 $(205) -- -- $1,791
Allowance for doubtful accounts.... 874 3 -- (80) 797
------ ----- ---- ---- ------
$2,870 $(202) $ -- $(80) $2,588
------ ----- ---- ---- ------
------ ----- ---- ---- ------
</TABLE>



S-2