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光导型硫化铅红外探测器噪声影响一直以来很困扰,本文简单论述了硫化铅红外探测器的工作原理和噪声类型。在此基础上,介绍了针对不同噪声类型,在器件装配过程中所采取的措施,重点分析有关1/f噪声产生的因素,以及为了达到良好的欧姆接触在工艺中对焊接技术和焊料选择的要求,并通过实践论证了工艺成效。得出合理的结构设计,相应的工艺手段,严格的操作,可控制噪声在可接受范围,从而扩大硫化铅红外探测器在各领域的应用。
The noise influence of light guide type lead sulfide infrared detector has always been troubling. This article briefly discusses the working principle and noise type of lead sulfide infrared detector. On this basis, the measures taken in the device assembly process for different types of noise are introduced, with emphasis on the factors related to 1 / f noise generation and the choice of solder technology and solder in the process for achieving good ohmic contact Requirements, and demonstrated the effectiveness of the process through practice. Draw a reasonable structure design, the corresponding technology means, strict operation, can control the noise in the acceptable range, thereby expanding lead sulfide infrared detectors in various fields.