US PATENT SUBCLASS 438 / FOR 496
DIFFERENTIAL OXIDATION AND ETCHING (437/985)

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

FOR 496DIFFERENTIAL OXIDATION AND ETCHING (437/985)

DEFINITION

Classification: 438/FOR.496

DIFFERENTIAL OXIDATION AND ETCHING:

Foreign art collection involving preferential oxidation accompanied by etching.