US PATENT SUBCLASS 438 / FOR 492
PRODUCING TAPERED ETCHING (437/981)

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

FOR 492PRODUCING TAPERED ETCHING (437/981)

DEFINITION

Classification: 438/FOR.492

PRODUCING TAPERED ETCHING:

Foreign art collection involving the use of an etchant to form an angled surface.