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charge-injection device (CID)

A solid-state imaging device utilizing an image sensor composed of a two-dimensional array of coupled MOS (metal-oxide semiconductor) charged storage capacitors and designed to convert near-infrared energy to electrical signals, providing broad gray shade or tonal rendition. The sensor collects minority carrier charge, generated by photon energy in the substrate near the charge storage capacitors, and stores it in the surface inversion region. By injecting the stored charge into the substrate, and by monitoring the current flow, signal readout is achieved.
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