MOSFET

MOSFET or Metal-Oxide-Semiconductor Field-Effect-Transistor technology is today one of the most popular semiconductor techniques. It is considered a key element in integrated circuit technology. The MOSFET devices can be split into various categories such as N-channel, P-channel, Depletion mode and Enhancement mode MOSFET. In most of the modern devices the transition from bipolar transistors to MOSFETs is complete. A typical MOSFET contains an n-(p-) doped silicon substrate along with two, highly p-(n-) doped contacts- drain and a source. The channel region in between is covered by the gate oxide, a thin insulating layer. The gate-oxide remains in touch with the gate electrode.