中图分类号:TN305.94 文献标识码:A 文章编号:1681—1070(2006)08—0023—03
lnterfacial Thermal Stress Analysis in Packaging
JIANG Chang—shun, XIE Kuo-jun,XU Hai—feng,ZHU Lin
Abstract:W ith the increasing of packaging integration the power and the quantity of heat of integrate circuit will increase,it will bring more and more temperature distributions and problems about thermal stresses in package. In this paper a finite element thermal stress model of substrate—adhesive—chip is established ,thermal stress distribution of substrate—chip interfaces and the afects of geometrical structure on therm al stresses are analyzed by finite element method,especially discuss interfacial thermal stresses distributions on chip—adhesive interface and adhesive—substrate interface.
Key words:diamond substrate:finite element method;thermal stress