典型集成电路可靠性评价方案研究

Research on Reliability Evaluation Scheme of Typical Integrated Circuits

元器件是组成航天装备的基石,是装备提高性能和可靠性水平的重要技术基础。元器件的实现,需要多种工艺、结构、材料,并且涉及多道工序及多人操作才能完成。设计、制造的每个环节都有可能使装备用元器件存在潜在缺陷,埋下安全隐患。对集成电路常见失效模式及失效机理进行分析,确认器件薄弱点,利用故障树方法分析器件应用的可靠性风险。基于可靠性风险分析的要素,完成集成电路可靠性评价方案研究。以某款隔离式收发器为典型案例,完成集成电路可靠性评价方案的制定,并进行可靠性评价,为型号的选用提供技术支撑。实践证明,基于可靠性风险要素的可靠性评价方案适用于型号应用,能有效评价器件的可靠性及装备应用适应性。

Components are the cornerstone of space equipment and the important technical basis for improving the performance and reliability of equipment.Component requires a variety of technology,structure,material,and requires multiple processes and multi-person operations to complete.During every link of designing and manufacturing,potential defects may be existed.and safety risks may be hidden.The common failure modes and failure mechanisms of IC are analyzed,device weak spots may be identified,and the reliability risks of component application are analyzed based on the method of failure tree.On account of the factors of reliability risks,the integrated circuit reliability evaluation scheme is achieved.Taking an isolated transceiver as a typical case,the integrated circuit reliability evaluation scheme is completed,and the reliability evaluation is carried out to provide technical support for the models.It has been proved that the reliability evaluation scheme based on reliability risk factors is suitable for model application and can effectively evaluate the reliability of devices and the adaptation of equipment application.