Semiconductor device manufacturing: process – Chemical etching – Vapor phase etching
Reexamination Certificate
2005-10-18
2005-10-18
Wilczewski, M. (Department: 2822)
Semiconductor device manufacturing: process
Chemical etching
Vapor phase etching
C438S730000, C438S795000, C216S067000, C250S492200
Reexamination Certificate
active
06955991
ABSTRACT:
A hot arc-type plasma generating system is described to etch a polymer on a substrate used in the manufacture of semiconductor devices. The etching process is particularly useful to remove a polymer from high aspect ratio holes, that can include trenches, greater than about 10 to 1 and even greater than 50 to 1.
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PCT International Search Report mailed on Nov. 28, 2000 for copending International Patent Application PCT/US00/27113.
Bollinger Lynn David
Tokmouline Iskander
Jetek, Inc.
St. Onge Steward Johnston & Reens
Wilczewski M.
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