US PATENT SUBCLASS 327 / 193
.~.~.~ Four or more layer device, (e.g., trigistor, etc.)

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

100  DF  SIGNAL CONVERTING, SHAPING, OR GENERATING {29}
185  DF  .~ Particular stable state circuit (e.g., tristable, etc.) {12}
192  DF  .~.~ Negative resistance transistor (e.g., unijunction, etc.) {1}
193.~.~.~ Four or more layer device, (e.g., trigistor, etc.)

DEFINITION

Classification: 327/193

Four or more layer device (e.g., trigistor, etc.):

(under subclass 192) Subject matter wherein the transistor contains more than three adjacent regions having differing conductivities.

SEE OR SEARCH THIS CLASS, SUBCLASS:

582, for miscellaneous four or more layer device circuits.