US PATENT SUBCLASS 438 / FOR 457
SUBSTRATE SURFACE PREPARATION (437/946)

Current as of: June, 1999
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438 /   HD   SEMICONDUCTOR DEVICE MANUFACTURING: PROCESS

FOR 457SUBSTRATE SURFACE PREPARATION (437/946)

DEFINITION

Classification: 438/FOR.457

SUBSTRATE SURFACE PREPARATION:

Foreign art collection involving steps for treating the surface of a substrate prior to deposition of a layer or junction formation.