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一种集成散热器的功率模块

申请公布号:CN105957850A

申请号:CN201610362582.7

申请日期:2016.05.26

申请公布日期:2016.09.21

申请人:
扬州国扬电子有限公司

发明人:王玉林;滕鹤松;徐文辉

分类号:H01L23/473(2006.01)I

主分类号:H01L23/473(2006.01)I

代理机构:
南京苏高专利商标事务所(普通合伙) 32204

代理人:陈静

地址:225000 江苏省扬州市扬州经济技术开发区吴州东路188号

摘要:本发明公开了一种集成散热器的功率模块,包括绝缘基板,所述绝缘基板上设有芯片集合,其特征在于,所述绝缘基板下方设有散热器基座,所述散热器基座包括散热介质入口和散热介质出口,散热介质从散热介质入口进入散热器基座内部并与绝缘基板的底部接触,再通过散热介质出口流出。本发明通过将功率模块与散热器集成一体化,省掉了导热硅脂层;减少了传热路径,散热介质可以直接与绝缘基板下方的金属层进行换热,省去了传统安装结构中的二次焊接层、底板层、导热硅脂层及散热器,不仅简化了结构,还减小了功率模块的热阻,提高了功率模块的可靠性。

主权项:一种集成散热器的功率模块,包括绝缘基板(1),所述绝缘基板(1)上设有芯片集合,其特征在于,所述绝缘基板(1)下方设有散热器基座(2),所述散热器基座(2)包括散热介质入口(21)和散热介质出口(22),散热介质从散热介质入口(21)进入散热器基座(2)内部并与绝缘基板(1)的底部接触,再通过散热介质出口(22)流出。

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