US PATENT SUBCLASS 438 / FOR 471
WASHED EMITTER PROCESS (437/960)

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

FOR 471WASHED EMITTER PROCESS (437/960)

DEFINITION

Classification: 438/FOR.471

WASHED EMITTER PROCESS:

Foreign art collection involving the cleaning of the surface of an emitter region by a nonstandard dip-etching or washing step.