Multichip module enables for high reliability applications

Abstract

To gain uniform, rigorous multichip module (MCM) qualification for high-reliability applications, Sandia has developed: a set of assembly test chips which are available for manufacturers and users to evaluate, characterize, and compare the particular MCM technology in terms of materials, chemical aging, geometries, stress state, thermal management, and assembly techniques; standard interconnect test structures as test coupons on the MCM substrate to determine the aging reliability through accelerated aging and lot quality through statistics; and exhaustive chip pretest methodology through prepackaging in a way compatible with today's military IC packaging assembly lines. The MCM substrate test structures and packaging for chip pretest are discussed.<>