Averaging Current Adjustment Technique for Reducing Pixel Resistance Variation in a Bolometer-Type Uncooled Infrared Image Sensor
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This paper presents an averaging current adjustment technique for reducing the pixel resistance variation in a bolometer-type uncooled infrared image sensor. Each unit pixel was composed of an active pixel, a reference pixel for the averaging current adjustment technique,and a calibration circuit. The reference pixel was integrated with a polysilicon resistor using a standard complementary metal-oxide-semiconductor (CMOS) process, and the active pixel was applied from outside of the chip. The averaging current adjustment techniquewas designed by using the reference pixel. The entire circuit was implemented on a chip that was composed of a reference pixel arrayfor the averaging current adjustment technique, a calibration circuit, and readout circuits. The proposed reference pixel array for the aver- aging current adjustment technique, calibration circuit, and readout circuit were designed and fabricated by a 0.35-µm standard CMOS process.
Abstract
This paper presents an averaging current adjustment technique for reducing the pixel resistance variation in a bolometer-type uncooled infrared image sensor. Each unit pixel was composed of an active pixel, a reference pixel for the averaging current adjustment technique,and a calibration circuit. The reference pixel was integrated with a polysilicon resistor using a standard complementary metal-oxide-semiconductor (CMOS) process, and the active pixel was applied from outside of the chip. The averaging current adjustment techniquewas designed by using the reference pixel. The entire circuit was implemented on a chip that was composed of a reference pixel arrayfor the averaging current adjustment technique, a calibration circuit, and readout circuits. The proposed reference pixel array for the aver- aging current adjustment technique, calibration circuit, and readout circuit were designed and fabricated by a 0.35-µm standard CMOS process.
참고문헌 (13)
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