| 摘要 |
Disclosed is a field effect transistor including: an electron supplying layer made of AlGaAs; an interface stabilizing layer, provided on the electron supplying layer, and not containing Al; an etching stop layer, provided on the interface stabilizing layer, and made of TnGaP; and a contact layer, provided on the etching stop layer, and made of GaAs. This prevents a interfacial layer such as an AlGaAsP layer from being formed in the interface between the AlGaAs electron supplying layer and the InGaP etching stop layer, and prevents deterioration in the Schottky characteristic.
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