US PATENT SUBCLASS 438 / 94
.~.~.~ Heterojunction

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

48  DF  MAKING DEVICE OR CIRCUIT RESPONSIVE TO NONELECTRICAL SIGNAL {5}
57  DF  .~ Responsive to electromagnetic radiation {22}
93  DF  .~.~ Compound semiconductor {2}
94.~.~.~ Heterojunction

DEFINITION

Classification: 438/94

Heterojunction:

(under subclass 93) Process for making a device responsive to electromagnetic radiation having a interface between two dissimilar semiconductor materials, at least one of which is a compound semiconductor, to constitute a junction.