BluGlass produces first blue emission from GaN on 6-inch glass

The development of deposition techniques for high-quality LED material on large glass wafers could ultimately result in significant cost reductions for LEDs.

Courtesy of Semiconductor Today.

BluGlass Ltd of Sydney, Australia says it has succeeded in producing what it claims is the world’s first blue light emission from the uniform deposition of gallium nitride on a 6-inch diameter coated glass wafer.

The latest increase in scale offers the LED market the possibility of additional cost efficiencies, claims CEO David Jordan. Compared to current 2-inch industry-standard sapphire or silicon carbide substrates for commercial blue LED production, a 6-inch wafer has nine times the area.

The company is also developing a remote plasma CVD process for low-temperature deposition of GaN.

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