Patent ID: 8518808
Filing Date: 2013-08-27
Classification: H01L

Abstract:
1. A process for annealing a III-nitride semiconductor without decomposing, the process including: capping a III-nitride semiconductor sample with a cap made from a material that is thermodynamically stable at an annealing temperature; positioning the capped III-nitride semiconductor sample inside an enclosure; charging the enclosure with one of an inert gas, nitrogen, ammonia, and mixtures thereof at an applied gas pressure above one atmosphere; and subjecting the capped III-nitride semiconductor sample to a plurality of heating and cooling cycles without removing the sample from the enclosure, each heating and cooling cycle including wherein during each heating and cooling cycle the sample is exposed to an elevated temperature range between Ts and T1 for a predetermined time period t1 without decomposing, t1 being less than a time t2 at which the sample would start to decompose at the elevated temperature range; and wherein at the end of the plurality of heating and cooling cycles, the sample has been heated to a temperature in the elevated temperature range for a total cumulative time t3 greater than t2, without the sample decomposing.