Fourth Quarter & Year End Results to be Announced on January 20

Livermore, CA — January 8, 2004 — FormFactor, Inc. (Nasdaq: FORM) will report financial results for its fourth quarter and fiscal year ended December 27, 2003 on Tuesday, January 20, 2004 at 1:30 p.m. PST. The public is invited to listen to a live web cast of FormFactor’s conference call on the investors section of the Company’s website at www.formfactor.com. A replay of the web cast will be available approximately two hours after the conclusion of the call. An audio replay of the conference call will also be made available approximately two hours after the conclusion of the call. The audio replay will remain available until January 24, 2004 at 10:00 p.m. PST and can be accessed by dialing (888) 203-1112 or (719) 457-0820 and entering confirmation code 123050.