出典:Wikipedia
出典:『Wikipedia』 (2009/01/28 23:55 UTC 版)
The modulated-doping field effect transistor or modulation-doped field effect transistor (MODFET) is a type of a field-effect transistor, also known as the High Electron Mobility Transistor (HEMT). Like other FETs, MODFETs are used in integrated circuits as digital on-off switches. FETs can also be used as amplifiers for large amounts of current using a small voltage as a control signal. Both of these uses are made possible by the FET’s unique current-voltage characteristics.
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