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Improvement of saturation characteristics of a frequency-demodulation CMOS image sensor

Published: 27 January 2004 Publication History
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  • Abstract

    This paper demonstrates improvement of image quality in a frequency-demodulation CMOS image sensor. We have already demonstrated fundamental characteristics of a frequency-demodulation function but the sensor shows relatively poor saturation characteristics due to a crosstalk effect. By introducing sweeping out residual carriers in a photogate and discharging them into an overflow drain, a fabricated image sensor using a standard 0.6 μm CMOS technology exhibits better saturation characteristics. The output at the saturation region increases 30 times larger than the original one.

    Reference

    [1]
    J. Ohta et al., IEEE Trans. Electron Devices 50 166 (2003).

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    cover image ACM Conferences
    ASP-DAC '04: Proceedings of the 2004 Asia and South Pacific Design Automation Conference
    January 2004
    957 pages
    ISBN:0780381750

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    IEEE Press

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    Published: 27 January 2004

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