Patent ID: 7534714
Filing Date: 2009-05-19
Classification: C30B,H01L

Abstract:
1. A method of fabricating a compound nitride semiconductor structure, the method comprising: disposing a substrate over a susceptor in a processing chamber, wherein the susceptor is in thermal communication with the substrate; flowing a first group-III precursor and a first nitrogen precursor into the processing chamber, the first group-III precursor comprising a first group-III element; heating the susceptor with a first nonuniform temperature profile to heat the substrate while flowing the first group-III precursor and the first nitrogen precursor, wherein heating the susceptor with a first nonuniform temperature profile comprises heating a center of the susceptor to a temperature greater than an edge of the susceptor; and depositing a first nitride layer over the heated substrate with a thermal chemical vapor deposition process within the processing chamber using the first group-III precursor and the first nitrogen precursor.