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UNIT PIXEL, PIXEL ARRAY OF CMOS IMAGE SENSOR AND CMOS IMAGE SENSOR HAVING THE SAME
UNIT PIXEL, PIXEL ARRAY OF CMOS IMAGE SENSOR AND CMOS IMAGE SENSOR HAVING THE SAME
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机译:统一像素,CMOS图像传感器的像素阵列和具有相同功能的CMOS图像传感器
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摘要
A unit pixel of a complementary metal-oxide semiconductor (CMOS) image sensor includes a photoelectric conversion element, a transfer transistor, a boosting capacitor and a signal transfer circuit, where the photoelectric conversion element generates a charge based on incident light, the transfer transistor transfers the charge to a floating diffusion node in response to a transfer control signal, the boosting capacitor is disposed between a gate of the transfer transistor and the floating diffusion node, the signal transfer circuit transfers an electric potential of the floating diffusion node in response to a selection signal, and a dynamic range of the electric potential of the floating diffusion node may be widened and a drain-source voltage difference of the transfer transistor may be increased so that the charge transfer efficiency may be enhanced.
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