metal oxide semiconductor

American  

Or metal-oxide semiconductor

noun

Electronics.

1. a three-layer sandwich of a metal, an insulator (usually an oxide of the substrate), and a semiconductor substrate, used in integrated circuits. MOS

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Example Sentences

After some indecision around what technology to focus on, the three men settled on a new version of MOS — metal oxide semiconductor — technology called silicon-gate MOS.

From New York Times

SpiroNose contains seven metal oxide semiconductor sensors that detect thousands of volatile organic compounds in exhaled air; the idea is that the mix changes when someone has a COVID-19 infection.

From Science Magazine