Remote PECVD로 저온성장된 $SiO_2$/InSb의 전기적 특성

Electrical properties of $SiO_2$/InSb prepared by low temperature remote PECVD

  • 발행 : 1996.09.01

초록

$SiO_2$ insulator layers on InSb have been prepared by remote PECVD system a low temperature below $200^{\circ}C$. The effects of deposition pressure, temperature, and gas flow ratio on the physical and electrical characteristics of the $SiO_2$ were studied. The InSb MIS device using $SiO_2$ was fabricated and measured its current-voltage and capacitance-voltage characteritance-voltage charateristics at 77K. The films evaluated Auger electron spectroscopy showed that composition atoms were distributed uniformaly throughout the oxide film and the outdiffusion of substrate atoms into the oxide were few. The leakage current density of the MIS device was about 6.26nA/$\textrm{cm}^2$ at 0.75MV/cm , and the breakdown voltage was about 1MV/cm. The interface-stage density at mid-bandgap extracted from 1MHz C-V measurement was $54\times 10^{11}\textrm{cm}^2-2V^{-1}$.

키워드

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