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

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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.