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The electrical properties of the interface between pyrolytically deposited SiO2and InAs have been investigated by measuring the admittance of Al-SiO2-InAs MOS diodes at room temperature and 77°K. The room temperature measurements yield a rather high surface state density of 2·5 × 1012states/eV/cm2. The surface state density undergoes an anomalous decrease to 2·8 × 1011states/eV/cm2at 77°K. A charge which is linearly dependent on the voltage across the oxide is trapped in the oxide. Conduction through the oxide causes the diodes to enter a deep depletion condition at 77°K. © 1971.




Schwartz, R. J., Dockerty, R. C., & Thompson, H. W. (1971). Capacitance voltage measurements on n-type InAs MOS diodes. Solid State Electronics, 14(2), 115–124. https://doi.org/10.1016/0038-1101(71)90086-4

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