Customized glass sealant for ceramic substrates for high temperature electronic application

This study investigates the ceramic to ceramic bonding, using composite glass frit as the binding layer that is able to tolerate a high temperature environment for ruggedized microelectronic applications. Shear strength measurements were carried out at both room and high temperature (i.e. 250 °C) to evaluate room and high temperature performance of the joints. The glass joints in both the Al2O3/glass/Al2O3 and AlN/glass/AlN systems maintained their integrity even when shear-tested at 250 °C. The results of the mechanical and microstructural characterizations demonstrate that Bi-based two phase glass frit bonding is an effective ceramic bonding method for harsh-environment electronic packaging.Accepted versio