This paper analyzes the mechanism and course of “Au鄄brittle冶in the soldering in assemblies and dis鄄
cusses “degolding冶and reliability influence of Au鄄Sn alloy. Linking with the correlation process requirements for pru鄄
ducts of spacecraft, some idiographic measure of “degolding冶is put forward and discussed. The reliability of compo鄄
nents soldering should be increased by degolding, but must carefulness in process.