First Quarter Results to be Announced on April 22

Livermore, CA — April 7, 2004 — FormFactor, Inc. (Nasdaq: FORM) will report financial results for its first quarter ended March 27, 2004, on Thursday, April 22, 2004 at 1:30 p.m. PDT. 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 April 27, 2004 at 9:00 p.m. PDT and can be accessed by dialing (888) 203-1112 or (719) 457-0820 and entering confirmation code 553407.