Characterization of Traps at Nitrided SiO2/SiC Interfaces near the Conduction Band Edge by using Hall Effect Measurements

Abstract

The effects of nitridation on the density of traps at SiO2/SiC interfaces near the conduction band edge were qualitatively examined by a simple, newly developed characterization method that utilizes Hall effect measurements and split capacitance-voltage measurements. The results showed a significant reduction in the density of interface traps near the conduction band edge by nitridation, as well as the high density of interface traps that was not eliminated by nitridation.

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