US PATENT SUBCLASS 438 / 138
.~.~ Vertical channel


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

133  DF  MAKING REGENERATIVE-TYPE SWITCHING DEVICE (E.G., SCR, IGBT, THYRISTOR, ETC.) {4}
135  DF  .~ Having field effect structure {2}
138.~.~ Vertical channel


DEFINITION

Classification: 438/138

Vertical channel:

(under subclass 135) Process for making a regenerative-type switching device wherein the active channel is configured to provide, in whole or in part, a vertically conductive pathway between source and drain regions.

SEE OR SEARCH THIS CLASS, SUBCLASS:

268, for a process of making a vertical channel insulated gate field effect transistor.