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The integrated micro metal Dewar is an essential assembly in the infrared detector, and it is required more than ten years vacuum lifetime during application. In this paper, the critical effect factors and failure mechanisms on the vacuum lifetime were analyzed. Four groups of high temperature accelerated life test were introduced, according to the vacuum degradation mechanism, the end-of-life of...
The Integrated Detector Dewar Cryocooler Assembly (IDDCA) is a critical component for advanced infrared systems, and especially in infrared (IR) applications, a high reliability for the IDDCA is required increasingly. In this paper, we systematically analyze the failure modes of IDDCA, such as interconnect failure, diodes degradation, vacuum failure, spring fracture, leakage of working medium, mechanical...
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