US PATENT SUBCLASS 327 / 421
.~.~.~ Zener

Current as of: June, 1999
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327 /   HD   MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS

365  DF  GATING (I.E., SWITCHING INPUT TO OUTPUT) {12}
419  DF  .~ Utilizing three or more electrode solid-state device {7}
420  DF  .~.~ Breakdown characteristic (e.g., punch-through, tunneling, etc.) {2}
421.~.~.~ Zener

DEFINITION

Classification: 327/421

Zener:

(under subclass 420) Subject matter wherein a breakdown is caused in a semiconductor device by the field emission of charge carriers in a depletion layer.

SEE OR SEARCH THIS CLASS, SUBCLASS:

584, for miscellaneous circuits with breakdown diodes.