Cleaning and liquid contact with solids – Processes – Including work heating or contact with combustion products
Reexamination Certificate
2005-04-19
2005-04-19
Markoff, Alexander (Department: 1746)
Cleaning and liquid contact with solids
Processes
Including work heating or contact with combustion products
C134S001000, C134S022100, C134S022180, C438S905000
Reexamination Certificate
active
06881277
ABSTRACT:
The present invention relates to a method of processing selected surfaces in a semiconductor process chamber by creating a temperature differential between the selected surfaces and contacting the surfaces with a reactant that preferentially react with a surface at one end of the temperature differential relative to the other selected surface(s). More particularly, the invention relates to the use of nitrogen trifluoride (NF3) gas for in situ cleaning of cold wall process chambers such as Rapid thermal Chemical Vaporization (“RTCVD”) systems.
REFERENCES:
patent: 6083323 (2000-07-01), Carlson et al.
patent: 6254689 (2001-07-01), Meder
patent: 6375756 (2002-04-01), Ishibashi
patent: 6395099 (2002-05-01), Pan
Ganz Bradley M.
Ganz Law PC
Markoff Alexander
Micro)n Technology, Inc.
Urban James L.
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