FIELD: electricity.
SUBSTANCE: in field transistor, comprising active layer and gate-insulating film, active layer comprises a layer of oxide, comprising In, Zn and Ga, amorphous area and crystalline area. At the same time crystalline area is separated from the first surface of interface, which is surface of interface between a layer of oxide and gate-insulating film, distance of 1/2 of active layer thickness or less, and it within the limits of 300 nm from surface of interface between active layer and gate-insulating film or is in point condition in contact with this surface of interface.
EFFECT: production of field transistor with high drift mobility.
4 cl, 4 dwg, 2 ex
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