HgCdTe光伏探测器抑制背景通量的研究  

Study of Background Illumination Reduction of HgCdTe Photo-voltage Detector

作　　者：王晨飞[1] 陈洪雷[1] 李言谨[1] 

机构地区：[1]中国科学院上海技术物理研究所,上海200083

出　　处：《激光与红外》2007年第B09期935-937,共3页Laser & Infrared

摘　　要：对于长线列焦平面器件,简单的单孔冷屏往往不能有效地抑制背景,本文在Hg1-xCdxTe光伏探测器背面镀制微孔冷屏的办法来降低背景。测试结果表明,探测器镀制微孔冷屏之后,可以使背景辐射通量大幅度减少,同时减少了光串音。从而证明微孔冷屏的确可以有效地抑制背景通量,减少光敏元响应面积扩大的问题,对于红外焦平面器件的性能提高有帮助。For long-array FPA device, simple cold shield couldn＇t effetely restrain background illumination. In this paper, the question has solved by depositing micro-aperture cold shield at the back of HgCdTe photo-voltage detector. The test results show that micro-aperture cold shield can reduce background illumination after deposited on the detector and also can reduce the cross talk. So micro-aperture cold shield can effective restrain the background flux and hold the natural response area of pixel when detector is working. This process can improve the capability of infrared FPA detector.

关 键 词：HGCDTE探测器 背景抑制 微孔冷屏 双面光刻 

分 类 号：TN215[电子电信—物理电子学]