Novel PbS detector chip pattern with extinction function

Fengjin Chen; Junjie Si; Xianjun Su; Yanqiu Lv; Zhengfeng Shi

doi:10.1117/12.2199520

15 October 2015 Novel PbS detector chip pattern with extinction function

Fengjin Chen, Junjie Si, Xianjun Su, Yanqiu Lv, Zhengfeng Shi

Proceedings Volume 9676, AOPC 2015: Optical Design and Manufacturing Technologies; 96760S (2015) https://doi.org/10.1117/12.2199520
Event: Applied Optics and Photonics China (AOPC2015), 2015, Beijing, China

Abstract

A novel chip pattern with extinction function in Lead salt detectors is specified. Lead Sulfide (PbS) polycrystalline film is prepared by Chemical Bath Deposition (CMD) on a transparent substrate, then a special figure and structure is saved by lithography techonology on the substrate. As a quaternion detector chip that made by PbS thin film for example in this paper, whose performance including signal, noise, weak-peaks and the uniformity of the chip are too poor to meet the detecting system at the initial stage of research, and the qualified ratio of chips is only 3% .This paper explains the reason why the performance and qualified ratio of chips were so poor, focuses on a novel chip pattern with extinction which avoided the disadvantages of traditional one. the novel chip pattern has been applied in detectors. The novel chip pattern is prepared with PbS thin film which both “extinction slice” and detector chip are based on a same substrate , which not only had absorbed the jumbled light , improved the uniformity and other performance of photosensitive elements, but also had left out the assembly diffculty and precision demand when a extinction slice assembly in the restricted space of inswept detector chip, omitted the production process of extinction slice and shorten the assembly process of the detectors, and the qualified ratio of chips had been improved from 3% to 98%.

Citation Download Citation

Fengjin Chen, Junjie Si, Xianjun Su, Yanqiu Lv, and Zhengfeng Shi "Novel PbS detector chip pattern with extinction function", Proc. SPIE 9676, AOPC 2015: Optical Design and Manufacturing Technologies, 96760S (15 October 2015); https://doi.org/10.1117/12.2199520

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