US PATENT SUBCLASS 257 / 593
.~ With means to increase current gain or operating frequency

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

565  DF  BIPOLAR TRANSISTOR STRUCTURE {11}
593.~ With means to increase current gain or operating frequency

DEFINITION

Classification: 257/593

With means to increase current gain or operating frequency:

(under subclass 565) Subject matter wherein the device includes means to increase the current gain or the operating frequency of the devices.