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航天器用高性能塑封器件的板級鑒定方法

Board-level testing for advanced PEMs in space applications

  • 摘要: 由于技術進步和設計需要,航天應用中不可避免地會遇到選用低質量等級塑封器件的情況。隨著器件功能的日益復雜和封裝的多樣化,實現器件級的鑒定越來越困難。文章提出了基于板級系統對塑封器件進行鑒定的方法,包括幾個標準的評估方面,如器件級篩選、破壞性物理分析、特殊的設計評估等;并介紹了一種基于局部加熱技術,能夠考核器件熱溫度特性的板級評估方法。

     

    Abstract: During the technological development and design, it is inevitable that one has to use some available components not very reliable for space applications. Due to the complicity of the component’s functions and the variety of device’s packaging, the component level testing is getting more and more difficult. The suggested qualification system in this paper is based on board-level functional testing of the parts and includes several standard elements of the qualification system, such as the destructive physical analysis (DPA), special design evaluations, and innovative qualification methods. An example of monitoring temperature transients and based on the local heating technique is described.

     

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