US PATENT SUBCLASS 438 / 93
.~.~ Compound semiconductor

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.~.~ Compound semiconductor {2}
94  DF  .~.~.~> Heterojunction
95  DF  .~.~.~> Chalcogen (i.e., oxygen (O), sulfur (S), selenium (Se), tellurium (Te)) containing

DEFINITION

Classification: 438/93

Compound semiconductor:

(under subclass 57) Process for making a device responsive to electromagnetic radiation having a compound semiconductor.