256-pixel CMOS-integrated thermoelectric infrared sensor array

被引:12
|
作者
Schaufelbuehl, A [1 ]
Münch, U [1 ]
Menolfi, C [1 ]
Brand, O [1 ]
Paul, O [1 ]
Huang, Q [1 ]
Baltes, H [1 ]
机构
[1] ETH Zurich, Phys Elect Lab, CH-8093 Zurich, Switzerland
关键词
D O I
10.1109/MEMSYS.2001.906513
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This paper presents a micromachined 16 x 16 array of thermoelectric infrared sensors fabricated in a commercial CMOS IC process with subsequent bulk-micromachining on wafer-scale. Each pixel contains an integrated heater, which makes calibration and self-testing possible. Addressing circuitry and four low-noise amplifiers are cointegrated with the array on a single chip with a size of 7.4 x 12 mm(2). A thermal imager, based on the infrared sensor-array, operates in ambient air, without thermal stabilization or cooling. The thermoelectric sensor principle allows to measure DC radiation signals even without a radiation chopper. The temperature resolution achieved at 1 Hz framerate is 176 mK.
引用
收藏
页码:200 / 203
页数:2
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