US PATENT SUBCLASS 438 / 71
.~.~.~ Specific surface topography (e.g., textured surface, etc.)


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

48  DF  MAKING DEVICE OR CIRCUIT RESPONSIVE TO NONELECTRICAL SIGNAL {5}
57  DF  .~ Responsive to electromagnetic radiation {22}
69  DF  .~.~ Including integrally formed optical element (e.g., reflective layer, luminescent layer, etc.) {3}
71.~.~.~ Specific surface topography (e.g., textured surface, etc.)


DEFINITION

Classification: 438/71

Specific surface topography (e.g., textured surface, etc.):

(under subclass 69) Process having a surface of specified topography incorporated into an electromagnetic sensitive device or utilized during manufacture thereof.