Refers to the order in which the semiconductor is doped in a MOS device. That is, which structures are constructed as N-type versus P-type material.
N-Channel Metal Oxide Semiconductor. A MOS transistor whose source and drain are N type diffusions in a P substrate. Applying a voltage of the proper polarity between gate and source produces a conducting channel of N material between source and drain.
N-channel metal oxide semi conductor. A chip fabrication technology requiring moderate performance and moderate power.