Quality and reliability investigation of Ni/Sn transient liquid phase bonding technology

A submicron of Ni/Sn transient liquid phase bonding at low temperature was investigated to surmount nowadays fine-pitch Cu/Sn process challenge. After bonding process, only uniform and high-temperature stable Ni3Sn4 intermetallic compound was existed. In addition, the advantages of this scheme showed excellent electrical and reliability performance and mechanical strength.