US PATENT SUBCLASS 327 / 571
.~.~ Having "S"-shape curve on I-V plot (e.g., pnpn diode type, etc.)

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


327 /   HD   MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS

524  DF  SPECIFIC IDENTIFIABLE DEVICE, CIRCUIT, OR SYSTEM {22}
568  DF  .~ Negative resistance type {4}
571.~.~ Having "S"-shape curve on I-V plot (e.g., pnpn diode type, etc.)

DEFINITION

Classification: 327/571

Having "S"-shape curve on I-V plot (e.g., pnpn diode type):

(under subclass 568) Subject matter including a solid-state device whose characteristic on a current versus voltage plot (i.e., with the current plotted on the Y axis and voltage on the X axis) has an "S"-shape.

(1) Note. A solid-state four layer diode, one of whose outer layers is a metal, breaks down at a predetermined reverse voltage point junction to provide high current at low voltages.

SEE OR SEARCH THIS CLASS, SUBCLASS:

570, for a miscellaneous circuit having a device with an "N"-shape negative resistance curve.