First Quarter Results to be Announced on April 20

Livermore, CA — April 6, 2005 — FormFactor, Inc. (Nasdaq: FORM) will report financial results for its first quarter ended March 26, 2005, on Wednesday, April 20, 2005, 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 24, 2005 at 9:00 p.m. PDT and can be accessed by dialing (800) 642-1687 or (706) 645-9291 and entering confirmation code 5382958.