Patent ID: 7776644
Filing Date: 2010-08-17
Classification: H01L

Abstract:
1. A method of fabricating a semiconductor device, the method comprising: forming a phase change material; forming a first electrode material on the phase change material; patterning the first electrode material with an etch recipe including at least one of bromine and iodine and not including chlorine to form a first electrode; and pattering the phase change material with the etch recipe including at least one of bromine and iodine and not including chlorine to form a phase change structure, wherein the first electrode material and the phase change material are etched with the etch recipe including the steps of: flowing HBr gas into a reaction chamber at a flow rate in a range from 40 to 60 sccm (standard cubic centimeters per minute); and flowing Ar gas into the reaction chamber at a flow rate in a range from 40 to 60 sccm (standard cubic centimeters per minute).