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InGaAs Linear Image Sensors

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InGaAs Linear Image Sensors

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InGaAs linear image sensors are designed specifically for near infrared detection. These image sensors successfully minimize adverse effects from dark current by driving the InGaAs photodiode array at zero bias, and they deliver a wide dynamic range in the near infrared region. In the InGaAs linear image sensors for foreign object detection, we have realized both high-speed readout and high gain by improving ROIC. InGaAs linear image sensors consist of an InGaAs photodiode array and a CMOS IC (ROIC) including a charge amplifier array, sample-and-hold circuit, shift register, readout circuit, and timing generator.

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