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Resistive Gate type CCD Linear Image Sensor with Electronic Shutter Function

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Resistive Gate type CCD Linear Image Sensor with Electronic Shutter Function

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In ordinary CCD image sensors, one pixel contains multiple electrodes and a signal charge is transferred by applying different clock pulses to those electrodes. In photodiode type CCD linear image sensors, because there is no potential slope in the active area, very large image lag occurs for rectangular pixels. In resistive gate structures, a single high-resistance electrode is formed in the active area, and a signal charge is transferred by means of a potential slope that is created by applying different voltages across the electrode. Compared to a CCD area image sensor which is used as a linear sensor by line binning, a resistive gate type CCD linear image sensor offers higher speed transfer of charges in the photosensitive area.

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