EXHIBIT 99
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LATTICE SEMICONDUCTOR ANNOUNCES OFFERING OF CONVERTIBLE SUBORDINATED NOTES

HILLSBORO, Ore., Oct. 18 / -- Lattice Semiconductor Corporation today
announced that it intends, subject to market and other conditions, to raise
approximately $200 million (excluding proceeds of the over-allotment option,
if any) through an offering of convertible subordinated notes to qualified
institutional investors. No other details were provided.

The Company stated that it intends to use the net proceeds of the offering to
repay the bank debt incurred to acquire Vantis Corporation in June 1999.

This news release does not constitute an offer to sell or the solicitation of
an offer to buy the securities. Any offers of the securities will be made
only by means of a private offering memorandum. The securities to be offered
will not be registered under the Securities Act of 1933, as amended, or
applicable state securities laws, and may not be offered or sold in the
United States absent registration under the Securities Act and applicable
state securities laws or available exemptions from such registration
requirements.

Oregon-based Lattice Semiconductor Corporation designs, develops and markets
the broadest range of high-performance ISP(TM) programmable logic devices
(PLDs). Lattice introduced ISP devices to the industry in 1992. Lattice
acquired Vantis, the Corporation that invented the PLD, in June 1999. With
double the engineering and sales resources, the combined Company will focus
on developing and delivering innovative programmable products to a
complementary customer base.

Lattice/Vantis products are sold worldwide through an extensive network of
independent sales representatives and distributors, primarily to OEM
customers in the communication, computing, industrial and military end
markets. Company headquarters are located at 5555 N.E. Moore Court,
Hillsboro, Oregon 97124 U.S.A.; Telephone 503-268-8000; FAX 503-268-8037. For
more information on access our Web site at: WWW.LATTICESEMI.COM.

NOTE: ISP and in-system programmable are trademarks of Lattice Semiconductor
Corporation.