US PATENT SUBCLASS 257 / 330
.~.~.~.~ Gate electrode in groove


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

213  DF  FIELD EFFECT DEVICE {6}
288  DF  .~ Having insulated electrode (e.g., MOSFET, MOS diode) {17}
327  DF  .~.~ Short channel insulated gate field effect transistor {6}
329  DF  .~.~.~ Gate controls vertical charge flow portion of channel (e.g., VMOS device) {1}
330.~.~.~.~ Gate electrode in groove {4}
331  DF  .~.~.~.~.~> Plural gate electrodes or grid shaped gate electrode
332  DF  .~.~.~.~.~> Gate electrode self-aligned with groove
333  DF  .~.~.~.~.~> With thick insulator to reduce gate capacitance in non-channel areas (e.g., thick oxide over source or drain region)
334  DF  .~.~.~.~.~> In integrated circuit structure


DEFINITION

Classification: 257/330

Gate electrode in groove:

(under subclass 329) Subject matter wherein the gate controlled vertical channel device has a groove located therein and a gate electrode located in the groove.