INFRARED SOLID-STATE IMAGE SENSOR

摘要

PROBLEM TO BE SOLVED: To provide an infrared solid-state image sensor with noise reduced wherever possible in reading signals.

SOLUTION: The infrared solid-state image sensor includes a sensitive pixel domain with a plurality of infrared detection pixels arranged in a matrix form for detecting incoming infrared rays and a reference pixel domain with a plurality of reference pixels provided therein. The detection pixels each includes a thermoelectric converter. The converter includes an infrared absorbing film for absorbing the infrared rays to convert it into heat and a first thermoelectric conversion element converting the heat converted by the absorbing film into an electric signal. The reference pixels each includes a second thermoelectric conversion element with one end of each reference pixel connected to a common reference potential line, and amplifies/outputs a difference between signal potential read out via a signal line from an infrared detection pixel and reference potential from the reference potential line.

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