METHOD FOR DETERMINATION OF CONDUCTIVITY AND THICKNESS OF SEMICONDUCTOR LAYERS Russian patent published in 2012 - IPC G01N22/00 

Abstract RU 2439541 C1

FIELD: electricity.

SUBSTANCE: method consists in exposure of semiconductor layer to SHF range radiation and measurement of dependence of SHF-range reflection coefficient in selected frequency range at the first and second values of temperature, calculation of parameters for semiconductor layer (d, σ) at which theoretical dependence of electromagnetic radiation reflection coefficient has the closest value to the measured one; using known temperature dependence a target couple of parameters (d, σ) is determined at which theoretical frequency dependence of electromagnetic radiation reflection coefficient has the closest value to the measured one at the second temperature value.

EFFECT: possibility of simultaneous determination of conductivity and thickness of semiconductor layer.

3 dwg, 2 tbl

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RU 2 439 541 C1

Authors

Usanov Dmitrij Aleksandrovich

Postel'Ga Aleksandr Ehduardovich

Dates

2012-01-10Published

2010-07-08Filed