US PATENT SUBCLASS 438 / 139
.~ Altering electrical characteristic

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}
139.~ Altering electrical characteristic

DEFINITION

Classification: 438/139

Altering electrical characteristic:

(under subclass 133) Process having a step of altering an electrical characteristic of the regenerative-type switching device.