【摘要】 商用塑封器件由于具有性能高、体积小、功耗低和成本低的优势,在空间领域应用已成为一种趋势。本文分析了商用塑封器件用于航天器的趋势、存在的问题以及要遭遇的空间环境及空间效应:热环境和辐射环境、总剂量效应、单粒子效应和充放电效应,针对其空间适应性提出了防护和对策,并给出了相应的测试结果。更多还原

【Abstract】 Plastic Encapsulated Microcircuits(PEMs) have been used gradually in military and space applications in order to meet the high performance needs of space systems.The advantage of using PEMs is the increased functionality,the speed of the instrument,smaller size,less power consuming and lower cost compared to the space Rad-Hard components.This paper analyses the problems and risks of PEMs components in space application,discusses the space environment where PEMs work,the thermal and radiation environment,and the radiation effect,Total Ionizing Dose(TID),Single Event Effect(SEE) and Electrostatic Discharge(ESD).Through the several measures such as screening,redundant design and radiation-hardened design,PEMs can be used to meet the requirements of high performance for spacecraft.Some experiment results are given.更多还原