Quarterly Revenues of $37.1 million, up 18% sequentially and up 99% year over year

LIVERMORE, CA — April 22, 2004 — FormFactor, Inc. (Nasdaq: FORM) today announced its financial results for the first quarter of fiscal year 2004, ended March 27, 2004. Quarterly revenues were $37.1 million, up 18% from $31.5 million in the fourth quarter of fiscal year 2003, and up 99% from $18.7 million for the first quarter of fiscal year 2003.

Operating income for the first quarter of fiscal year 2004 was 22.8% of revenues, up from 18.5% for the fourth quarter of fiscal year 2003, and up from 5.3% for the first quarter of fiscal year 2003.

Net income for the first quarter of fiscal year 2004 was $5.2 million or $0.13 per share on a fully diluted basis, compared to $4.1 million or $0.10 per share on a pro forma fully diluted basis for the fourth quarter of fiscal year 2003, and $0.7 million or $0.02 per share on a pro forma fully diluted basis for the first quarter of fiscal year 2003.

Pro forma earnings per share have been adjusted for the three months ended December 27, 2003 and the three months ended March 29, 2003, assuming the Company’s initial public offering and follow-on public offering had occurred at the beginning of fiscal year 2003. The pro forma earnings per share reflect the conversion of all redeemable convertible preferred stock of the Company to common stock, and the issuance of the Company’s common stock in its initial public offering and follow-on public offering. The Company believes the pro forma earnings per share presentation represents a meaningful alternative basis for the comparison of its current results to results during fiscal periods occurring prior to the Company’s initial public offering.

On a GAAP fully diluted basis, net income for the fourth quarter of fiscal year 2003 was $4.1 million or $0.10 per share and $5.2 million or $0.13 per share for the first quarter of fiscal year 2004.

Bookings of $50.0 million for the first quarter of fiscal year 2004 increased 34.3% from $37.3 million for the fourth quarter of fiscal year 2003 and were up 186.8% from $17.4 million for the first quarter of fiscal year 2003.

Igor Khandros, President and CEO of FormFactor stated, “We are encouraged by the strength of the semiconductor industry cycle. During the first quarter of 2004 we continued to build on the strong demand in the DRAM industry that emerged during the fourth quarter of 2003. This demand was driven by significant technology transitions, including the ramp of 110 nanometer-based designs, and the emerging ramp of DDRII devices. We saw increasing demand for our Flash market wafer probe cards as the transition to high parallelism wafer test gains momentum in both NAND and NOR Flash applications. In the first quarter of 2004 we also saw indications that the continuing 300mm expansion across DRAM, Flash and flip chip logic device manufacturers should accelerate demand for our wafer probe cards as manufacturers drive toward improved wafer test efficiency.”

The Company has posted its revenue breakdown by region and market on the investor relations section of its website at www.formfactor.com. FormFactor will conduct a conference call at 1:30 p.m. PDT, or 4:30 p.m. EDT, today. The public is invited to listen to a live web cast of FormFactor’s conference call on the investor relations 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.