Crystal IS and Asahi Kasei produce first four-inch aluminum nitride substrate
29.08.2023 - This single-crystal aluminum nitride substrate demonstrates the scalability of Crystal IS processes for growing AlN bulk single-crystals.
Aluminum nitride substrates have low defect densities, high UV transparency, and low concentrations of impurities. AlN is attractive for a variety of industries, such as UVC LEDs and power devices, due to its ultra-wide bandgap and very high thermal conductivity. The four-inch substrate produced shows a usable area of over 80 percent based on current requirements for UVC LEDs.
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Crystal IS four-inch diameter bulk aluminum nitride substrate comparison. (Source: Asahi Kasei)
Founded in 1997 to develop native aluminum nitride substrates, Crystal IS manufactures UVC LEDs on its commercial process for two-inch diameter substrates. These LEDs enable industry-leading reliability and performance at the ideal germicidal wavelengths from 260 nm – 270 nm. The current capacity of the facility can meet the volume requirements for consumer devices using UVC LEDs based on the existing two-inch production line.
Crystal IS currently produces thousands of two-inch substrates annually to support the production of its Klaran and Optan product lines.
Contact
Asahi Kasei Europe GmbH
Am Seestern 4
40547 Düsseldorf
+49 0211 882203 0
