US PATENT SUBCLASS 326 / 81
.~.~ CMOS

Current as of: June, 1999
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326 /   HD   ELECTRONIC DIGITAL LOGIC CIRCUITRY

62  DF  INTERFACE (E.G., CURRENT DRIVE, LEVEL SHIFT, ETC.) {3}
80  DF  .~ Supply voltage level shifting (i.e., interface between devices of a same logic family with different operating voltage levels) {1}
81.~.~ CMOS

DEFINITION

Classification: 326/81

CMOS:

(under subclass 80) Subject matter including a device having a p-channel and an n-channel enhancement type metal-oxide field-effect transistor (MOSFET) which are connected in series across a power supply with their gates tied together.

(1) Note. A MOSFET is a field-effect transistor having a metallic gate insulated from the channel by an oxide layer (e.g., SiO2). A MOSFET is either enhancement-type (normally turned-off) or depletion-type (normally turned-on).