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发帖数: 119 | 3 FET is the general name for all field-effect devices, such as MOSFET, MESFET
, JFET, thin-film transistor, etc. HEMT, also called MODFET, is a sub-group
of FET. All FET devices uses electric field created by gate voltage to
control the conduction level between source and drain (that's why they are
called field effect transistor).
In traditional FET devices, the channel region is doped with impurities.
Carrier mobility is reduced due to scattering by the impurity ions. To
enhance carrier mobility |
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