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Title of Article

SMALL-SIGNAL FIELD EFFECT IN HETEROEPITAXIAL SILICON-ON-SAPPHIRE LAYERS PRODUCED BY MOLECULAR-BEAM EPITAXY


Issue
4
Date
2009

Article type
scientific article
UDC
621.382
Pages
39-44
Keywords
heterostructures, silicon on sapphire, field effect, small-signal measurement technique


Authors
Tikhov S.V.
Nizhegorodskiy gosuniversitet im. N.I. Lobachevskogo

Shengurov V.G.
Nizhegorodskiy nauchno-issledovatelskiy fiziko-tekhnicheskiy institut NNGU

Pavlov D.A.
Nizhegorodskiy gosuniversitet im. N.I. Lobachevskogo

Shilyaev P.A.
Nizhegorodskiy gosuniversitet im. N.I. Lobachevskogo

Denisov S.A.
Nizhegorodskiy nauchno-issledovatelskiy fiziko-tekhnicheskiy institut NNGU


Abstract
Small-signal measurement technique to study field-effect mobility has been shown to have high informativity in relation to thin silicon-on-sapphire layers produced by molecular beam epitaxy. This technique allows determining the state of the Si surface and Si|/Al2O3 interface in Si layers with the thickness below 0.3 µm. The values of charge carrier drift mobility and trapping center parameters on these surfaces have also been determined.

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