Lexicon - N.
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N

netlist

An ASCII file containing a description of schematic design elements and their interconnections. Netlist transfer is the most common way of moving designs from one design system or tool to another. The file formats that are used by Intersil are Cadence and EDIF.

NMOS

Also called "N-Channel MOS" (metal oxide semiconductor). A type of MOSFET in which electrons are the dominant charge carrier in the semiconductor channel. The channel is N-type. NMOS devices run at least twice as fast as PMOS (P-Channel MOS) devices--the oldest type of MOS circuit-- because the mobility of electrons is higher than that of holes. Compare PMOS.

noise

Unwanted acoustic or electromagnetic disturbances, as opposed to desired signals. See signal.

non-volatile memory

Any device that faithfully retains its stored information after power is removed. Examples: EPROMS, PALS, bubble memories, rotating magnetic discs, optical memory. See volatile memory.

NPLY

Non Photo-Non Process Limited Yield.

NPN transistor

A two-junction transistor with an N-type collector and emitter and a P-type base. See bipolar transistor and complementary. Compare PNP transistor.

NRE

Non-Recurring Engineering. A one-time charge for photomask development, test and prototype tooling, and associated engineering costs.

ns, nsec

Abbreviations for nanosecond (x10-9 second). One thousandth of a microsecond. Electronic signals travel approximately one foot per nsec.

N-type semiconductor

A semiconductor type in which the density of holes in the valence band is exceeded by the density of electrons in the conduction band. N-type behavior is induced by the addition of donor impurities, such as arsenic or phosphorus, to the crystal structure of silicon. See also acceptors, donors, doping and impurities.

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