Laytec has upgraded in-situ GaN LED monitoring system. LED manufacturers would know the emission wavelength of the final device during MOCVD growth. Today, according to the Solid State Lighting road map, the wavelength variation across a wafer should be less than 1 nm. This means a less than 1 K (10C) variation of the GaN surface temperature during InGaN MQW growth. LayTec’s Pyro 400 is widely used for enabling fab-wide GaN surface temperature uniformity in many LED manufacturers production lines. Meanwhile, more complex LED structur...