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Sumitomo First To Develop 6in GaN Substrates

The substrates will be ideally suited for the production of white LEDs.

Sumitomo Electric Industries has successfully developed what it claims is the world's first 6in diameter GaN (gallium nitride) substrates to be used for white LEDs (light emitting diodes).

Previously, the company led the world with the production of 2in GaN substrates for blue-violet lasers, which enabled production of the first Blu-ray DVD players.

Sumitomo Electric began large scale production of 2in GaN substrates designed for use in white LEDs. It has also been developing larger diameter GaN substrates.

The front face of the newly developed 6in GaN substrates is a polarized c-plane. Sumitomo Electric has ongoing development efforts to bring this material into large scale production and expects that these materials will find widespread use for both white LEDs and power devices.
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