US PATENT SUBCLASS 257 / 468
.~.~ Semiconductor device operated at cryogenic temperature

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

414  DF  RESPONSIVE TO NON-ELECTRICAL SIGNAL (E.G., CHEMICAL, STRESS, LIGHT, OR MAGNETIC FIELD SENSORS) {4}
467  DF  .~ Temperature {3}
468.~.~ Semiconductor device operated at cryogenic temperature

DEFINITION

Classification: 257/468

Semiconductor device operated at cryogenic temperature:

(under subclass 467) Subject matter wherein means are provided to cool the device for operation at cryogenic levels (e.g., below 100 degrees Kelvin).