US PATENT SUBCLASS 438 / FOR 240
.~ Shadow masking (437/80)


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

FOR 149  DF  INCLUDING FORMING A SEMICONDUCTOR JUNCTION (437/15) {7}
FOR 240.~ Shadow masking (437/80)


DEFINITION

Classification: 438/FOR.240

Shadow masking:

Foreign art collection for processes involving the use of a mask positioned with respect to the radiation and the substrate in such a manner as to cast a shadow.