Failure analysis of leakage on hybrid integrated circuit copper power shell

The package of glass-sealing-to-metal is one sort of main packages in an integrated circuit. It is constructared in the way that the insulator consisting of the glass sealed with Kovar alloy is soldered onto copper tubular base. The failure analysis of PM hybrid integrated circuit copper power shell has been made in the present paper. According to the comparision of our sample with the same sore of sealing power tube from aboard, we put forward some proposals and give the effective way to improve the quality of products.