LIVERMORE, Calif. – December 14, 2006 – FormFactor, Inc. (Nasdaq: FORM) today announced that its patent portfolio has been identified as one of the most valuable portfolios in the semiconductor equipment industry, according to the “Patent Power” survey published by IEEE Spectrum magazine. Specifically, FormFactor was ranked sixth in the Semiconductor Equipment Manufacturing category, and highest among any manufacturer of semiconductor test equipment.

“Our patent portfolio helps protect our continuing investment in innovation, which is a key enabler in our ability to deliver mission critical products and solutions to IC manufacturers that help lower their cost of test and enable their technology roadmaps,” stated Dr. Igor Khandros, FormFactor CEO. “We are proud of our technological leadership and are honored to be recognized by IEEE Spectrum for our efforts.”

The survey was conducted for IEEE Spectrum by 1790 Analytics, a Mount Laurel, N.J.-based research firm that specializes in analyzing patent citations. According to the survey, 1790 Analytics considered over a thousand organizations with the most influential—and potentially most lucrative—patent portfolios and identified the top 10 companies with the most powerful patent pipelines based on those companies’ U.S. patents among 15 key industry sectors.

The results of the survey were published in the November 2006 issue of IEEE Spectrum, and can be viewed online at http://spectrum.ieee.org/nov06/4699.

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Forward-Looking Statements

Statements in this press release that are not strictly historical in nature are forward-looking statements within the meaning of the federal securities laws, including statements regarding the company’s patent portfolio and product development capabilities. These forward-looking statements are based on current information and expectations that are inherently subject to change and involve a number of risks and uncertainties. Actual events or results might differ materially from those in any forward-looking statement due to various factors, including, but not limited to: the company’s ability to develop innovative products and solutions for semiconductor wafer test, to deliver wafer test products and solutions to semiconductor manufacturers for lowering their cost of test and enabling their technology roadmaps, and to protect and enforce the company’s intellectual property rights. Additional information concerning factors that could cause actual events or results to differ materially from those in any forward-looking statement is contained in the company’s Form 10-K for the fiscal year ended December 31, 2005 and the company’s subsequent 10-Q and 8-K filings, which the company has filed with the Securities and Exchange Commission (“SEC”). Copies of SEC filings made by the company are available at http://investors.formfactor.com/edgar.cfm. The company assumes no obligation to update the information in this press release, to revise any forward-looking statements or to update the reasons actual results could differ materially from those anticipated in forward-looking statements.