- -------------------------------------------------------------------------------- - -------------------------------------------------------------------------------- SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 APRIL 21, 1999 ------------------------------------------------ Date of Report (Date of earliest event reported) LATTICE SEMICONDUCTOR CORPORATION ------------------------------------------------------ (Exact name of registrant as specified in its charter) DELAWARE 000 - 18032 93-0835214 (State or other jurisdiction (Commission File (I.R.S. Employer of incorporation) Number) Identification No.) 5555 NE MOORE COURT HILLSBORO, OR 97124-6421 ---------------------------------------- (Address of principal executive offices) (503) 681-0118 ---------------------------------------------------- (Registrant's telephone number, including area code) - -------------------------------------------------------------------------------- - -------------------------------------------------------------------------------- ITEM 5. OTHER EVENTS. On April 21, 1999 Lattice Semiconductor Corporation (the "Registrant") entered into a Stock Purchase Agreement with Advanced Micro Devices, Inc. (the "Seller") pursuant to which the Registrant will acquire for cash all of the capital stock of Vantis Corporation, a wholly owned subsidiary of Seller. It is anticipated that the transaction will be completed before the end of Registrant's second fiscal quarter ending September 1999. ITEM 7. FINANCIAL STATEMENTS AND EXHIBITS. Exhibit No. Description 2.1 Stock Purchase Agreement, dated April 21, 1999, between the Registrant and the Seller. 99 Press Release dated April 21, 1999. -2- SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. LATTICE SEMICONDUCTOR CORPORATION Date: May 7, 1999 By: /s/ Stephen A. Skaggs --------------------------------- Name: Stephen A. Skaggs Title: Senior Vice President - Chief Financial Officer -3-