Cmos Nand Gate Layout. By de morgan s theorem a two input nand gate s logic may be expressed as ab a b making a nand gate equivalent to inverters followed by an or gate. Here is the corresponding layout for the 2 input nand gate and as we can see there are no errors using the drc now well errors with erc and both layout and schematic match using ncc.
Cmos two input nand gate. The n net consisting of two series connected nmos transistor creates a. The principle of operation of the circuit is exact dual of the cmos two input nor operation.
The series connection of the two n channel transistors between gnd and the gate output.
Three input nand gate. The two smaller regions on the left are taps to prevent latchup. A nand gate is made using transistors and junction diodes. Cmos two input nand gate.
