GaN, otherwise known as gallium nitride, is used for the production of semiconductor power devices such as diodes and transistors as well as RF components and laser diodes (LEDs). In the past, silicon was used as a power semiconductor, but the advancement of GaN has made it a priority. GaN is capable of taking over where Si leaves power conversion, RF and analog applications. The reason for this change is that this technology requires a wide-bandgap material such as GaN. It has very high electrical resistance and excellent performance at high temperatures. If you are looking for a reliable and high quality product, we suggest that you use our fine substrates.