Osram Opto Semiconductors is switching its fabrication of red, orange and yellow light emitting diodes to 6-inch wafers. The German high-tech company is extending the fabrication of all large-wafer LEDs to the indium-gallium-aluminum-phosphide (InGaAlP) material system and expanding its production capacity. The company began switching fabrication of blue LED chips back in 2011.
GaN’s hardness, crystalline structure and wide bandgap make it ideal for a variety of applications. These include light-emitting diodes, laser diodes that read blu-ray discs, transistors that operate at high temperatures, solar cell arrays for satellites, biochemical sensors and, because of GaN’s relative biocompatibility, electronic implants in humans.
The company has put together a plan for establishing the gallium arsenide (GaAs) POET technology with several potential industry partners who have foundry infrastructure to take POET to the manufacturing stage