May 13, 2025

First production-ready TFLN photonic foundry emerges from CSEM spin-off

  • CSEM announces the incorporation of its spin-off CCRAFT in April 2025.  
  • CCRAFT is a new foundry manufacturing photonic integrated circuits—key components for optical communication, AI data centers, and quantum technologies. 
  • It is the first production-ready pure-play foundry in the world to offer chips based on Thin‑Film Lithium Niobate (TFLN) technology, one of the fastest growing platforms in photonics.
  • CCRAFT already delivers pilot production today and plans to expand its production lines in Neuchâtel to deliver millions of advanced photonic chips.
Alexandre Pauchard, CEO of CSEM, and Hamed Sattari, CEO & Founder of CCRAFT
© CSEM - CSEM CEO Alexandre Pauchard and CCRAFT CEO Hamed Sattari inside CSEM’s cleanroom, holding a TFLN wafer. After six years of R&D at CSEM, CCRAFT is now manufacturing and scaling up to deliver high-volume photonic chip production.
Alexandre Pauchard, CEO of CSEM, and Hamed Sattari, CEO & Founder of CCRAFT
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CCRAFT has developed its technology with CSEM’s foundry to manufacture Thin‑Film Lithium Niobate (TFLN) wafers, one of the most promising materials for next-generation optical communication and computing devices.
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CCRAFT has started operations from CSEM’s cleanroom with a 150 mm pilot line. Over the next three years, it will scale up to high-volume production in a dedicated facility in the region, delivering 200 mm wafers.
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CCRAFT’s technology is the most advanced TFLN platform in the world, combining more than 10 core process steps to deliver dozens of integrated optical components on an area no larger than a fingertip.
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Additionnal information

CSEM

Ada Hinrichs
Head of Marketing & Communications
+41 78 658 40 42
media@csem.ch

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