FormFactor — The Invisible Company That Touches Every Chip

FormFactor, founded in 1993 by Dr. Igor Khandros, revolutionized semiconductor testing by pioneering MEMS-based probe card technology. Probe cards are critical instruments that make physical contact with microscopic pads on chips while still on silicon wafers to test functionality before packaging. The company's breakthrough was using Microelectromechanical Systems (MEMS) manufacturing to create probe tips with extraordinary precision, replacing traditional cantilever needle probes. This innovation enabled finer pitch probing, higher probe counts, and superior performance. Under CEO Mike Slessor's leadership since 2013, FormFactor has expanded beyond probe cards into silicon photonics and quantum computing through strategic acquisitions. The AI boom has been a major catalyst, particularly HBM testing which represents nearly 1% of HBM revenues - double the industry average. HBM's complex multi-layer architecture requires extensive testing at each layer and interconnect level. FormFactor's technology advantages include its proprietary Smart Matrix technology, extensive patent portfolio, and ability to achieve high parallelism testing. The company is building a new Texas facility to expand capacity and improve margins. Key growth drivers include advanced packaging trends like chiplets, 2.5D/3D stacking, and the structural increase in 'test intensity' as semiconductors become more complex. Competition comes primarily from TechnoProbe and Japan Microelectronics, but FormFactor maintains leadership through technology differentiation. Financial performance shows accelerating growth with record quarters and expanding margins, though the company faces risks from cyclicality, HBM concentration, and competitive pressure.