US PATENT SUBCLASS 438 / 355
.~.~ Total dielectrical isolation


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}
353  DF  .~ Including isolation structure {5}
355.~.~ Total dielectrical isolation


DEFINITION

Classification: 438/355

Total dielectrical isolation:

(under subclass 353) Process for making a bipolar transistor which is fully electrically isolated by dielectric insulative material from laterally adjacent semiconductive regions.