HEUKING advises shareholders of Keystone Photonics GmbH on sale to NASDAQ-listed FormFactor, Inc.

HEUKING advised the shareholders of Keystone Photonics GmbH on the sale of their shares to NASDAQ‑listed FormFactor, Inc. The transaction concerns the sale of Keystone Photonics GmbH, a pioneer in optical probing technology for silicon photonics (SiPh) and co‑packaged optics (CPO) wafer testing. These technologies are key for next‑generation data centers powering AI and high‑performance computing, accelerating data communications while delivering significantly lower power consumption. FormFactor is a leading provider of essential test and measurement technologies across the full integrated circuit life cycle — from characterization, modeling, reliability and design debug, to qualification and production test. FormFactor is listed on the NASDAQ stock exchange. Driven by demand for AI infrastructure, SiPh is forecast to surge at nearly 30% annual growth (MarketsandMarkets, 2025, Silicon Photonics Market – Global Forecast to 2029). The acquisition of Keystone Photonics strengthens FormFactor’s position at the forefront of this growth, extending its integrated test system leadership for advanced semiconductor packaging and leveraging its lab‑to‑fab position as SiPh and CPO manufacturers move from concept to high‑volume production. HEUKING represented the shareholders of Keystone Photonics GmbH with a team composed by: Dr. Katharina Prasuhn (lead, partner, Munich; corporate law / M&A), Dr. Alexander Jüngst (Cologne; corporate law / M&A), Marilena Schöck (Munich; corporate law / M&A), Dr. Henrik Lay (Hamburg; tax law), Dr. Lutz Martin Keppeler (Cologne; IT law), Antje Münch (Stuttgart; IP law), Michael Kreisler (Berlin; foreign trade law) and Dr. Laura Pütz (Cologne; employment law).

HEUKING advises shareholders of Keystone Photonics GmbH on sale to NASDAQ-listed FormFactor, Inc.

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