Study of Cu-Sn-In system for low temperature, wafer level solid liquid inter-diffusion bonding

The Solid Liquid Interdiffusion (SLID) bonds carried out for this work take advantage of the Cu-In-Sn ternary system to achieve low temperature wafer-level bonds. The experiments were carried out across a range of temperatures and the results cover optimized wafer-level bonding process, the formation of the bond microstructure, mechanical performance, as well as the effects of thermal aging.