US PATENT SUBCLASS 257 / 167
.~ Having at least four external electrodes

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

107  DF  REGENERATIVE TYPE SWITCHING DEVICE (E.G., SCR, COMFET, THYRISTOR) {19}
167.~ Having at least four external electrodes

DEFINITION

Classification: 257/167

Having at least four external electrodes:

(under subclass 107) Subject matter wherein the regenerative active junction switching device has at least four electrodes connected to the outside of the device.