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METHOD FOR MAKING THIN DIAPHRAGMS
US 3,423,823 A
Filed
: 10/18/1965
Issued
: 01/28/1969
Est. Priority Date
: 10/18/1965
Status: Expired due to Term
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Current Assignee
William G. Ansley
Original Assignee
William G. Ansley
Inventors
Ansley, William G.
Application Number
US04/497,006
Time in Patent Office
1,198 Days
Field of Search
US Class Current
438/53
CPC Class Codes
H01L 21/00
Processes or apparatus adap...
H01L 21/18
the devices having semicond...
Y10S 148/051
Etching
Y10S 148/085
Isolated-integrated
Y10S 438/928
Front and rear surface proc...
Y10S 438/977
Thinning or removal of subs...
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