US PATENT SUBCLASS 257 / 85
.~.~.~ With heterojunction

Current as of: June, 1999
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257 /   HD   ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES)

79  DF  INCOHERENT LIGHT EMITTER STRUCTURE {10}
80  DF  .~ In combination with or also constituting light responsive device {3}
84  DF  .~.~ Combined in integrated structure {1}
85.~.~.~ With heterojunction

DEFINITION

Classification: 257/85

With heterojunction:

(under subclass 84) Subject matter wherein the device contains a heterojunction, i.e., wherein the junction separates semiconductor materials of different chemical composition.