Key highlights
- 2026-03-26: Asahi Kasei will discontinue UVC LED device production at its U.S. subsidiary Crystal IS.
- Crystal IS will refocus on aluminum nitride (AlN) single-crystal substrate development for high-performance RF and power semiconductor applications.
- Crystal IS has produced 100 mm (4 in) single-crystal AlN substrates compatible with standard semiconductor manufacturing processes.
- Asahi Kasei says the discontinuation will have an immaterial impact on consolidated financial results.
Production change
Asahi Kasei will discontinue UVC LED device production at its U.S. subsidiary Crystal IS as part of a portfolio optimization.
Strategic refocus
Crystal IS will concentrate resources on developing aluminum nitride (AlN) single‑crystal substrates, leveraging its established technical capabilities in single‑crystal AlN.
Technology and applications
AlN remains a platform for high‑performance UVC LEDs and is increasingly relevant for high‑performance RF and power semiconductor applications; Crystal IS has produced 100 mm (4 in) single‑crystal AlN substrates compatible with existing semiconductor manufacturing processes.
Financial impact
Asahi Kasei expects the discontinuation to have an immaterial impact on consolidated financial results.
