Patent ID: 6133638
Filing Date: 2000-10-17
Classification: H01L

Abstract:
A semiconductor die assembly, comprising:a substrate having a surface;at least one conductive bump attached to said surface of said substrate, the at least one conductive bump comprised of a first material; anda semiconductor die having at least one bond pad corresponding to the at least one conductive bump, the at least one bond pad comprised of a second material, said at least one bond pad secured to the at least one conductive bump by a non-eutectic, non-alloy forming low-temperature diffusion bond directly joining the at least one conductive bump to the at least one bond pad, the non-eutectic, non-alloy forming low-temperature diffusion bond formed at a temperature less than the melting temperature of the first material of the at least one conductive bump and less than the melting temperature of the second material of the at least one bond pad and wherein the non-eutectic, non-alloy forming low-temperature diffusion bond forming temperature is less than 300 degrees C.