US PATENT SUBCLASS 438 / 345
.~ Walled emitter

Current as of: June, 1999
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438 /   HD   SEMICONDUCTOR DEVICE MANUFACTURING: PROCESS

309  DF  FORMING BIPOLAR TRANSISTOR BY FORMATION OR ALTERATION OF SEMICONDUCTIVE ACTIVE REGIONS {25}
345.~ Walled emitter

DEFINITION

Classification: 438/345

Walled emitter:

(under subclass 309) Process for making a bipolar transistor wherein the emitter-base junction terminates against a dielectric isolation sidewall.

SEE OR SEARCH CLASS

257, Active Solid-State Devices (e.g., Transistors, Solid-State Diodes), especially

514, and 515 for walled emitter bipolar transistor structure.