IGBT封装用基板材料的研究现状
首发时间:2019-06-10
摘要:绝缘栅双极型晶体管(IGBT)模块封装用基板材料由金属和陶瓷复合而成。由于两种材料的物化性质相差很大,其连接,和成功连接后的基板的可靠性都存在着很大的问题。金属和陶瓷材料之间难以润湿,热膨胀系数相差较大,是难以连接和冷热循环下失效的主要原因。综述了当下适合于IGBT模块封装用的不同金属材料,陶瓷材料的连接方式,以及连接后基板的可靠性。为IGBT模块封装基板材料的选择提供一定的参考。
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Review of IGBT packaging substrate materials
Abstract:Insulating gate bipolar transistor (IGBT) module packaging substrate material is made of metal and ceramic. Because the physicochemical properties of the two materials are quite different, there are big problems in their connection and the reliability of the substrate after successful connection.It is difficult to wetting between metal and ceramic materials, and the difference of thermal expansion coefficient is large, which make the connection between metal and ceramic become difficult, and it is one of the reason for failure of the substrate. This paper reviews the different metal materials, ceramic materials and reliability of IGBT modules.It provides some reference for IGBT module packaging substrate material selection.
Keywords: Insulated gate bipolar transistor substrate packaging reliability
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