Patent ID: 6921713
Filing Date: 2005-07-26
Classification: H01L

Abstract:
1. A method of fabricating a microelectronic assembly comprising the steps of: (a) providing an active microelectronic element including active devices in an active element body and active element contacts exposed at a surface of said active element body and electrically connected to said active devices; (b) separately providing an interconnect element including an interconnect element body, interconnect conductors having electrical conductivity at least equal to that of copper in said interconnect body, and contact pads electrically connected to said interconnect conductors; (c) joining said interconnect element to said active element so as to connect said interconnect conductors to said active devices, said joining step including forming substantially rigid metal-to-metal interconnects between said active element contacts and said contact pads using a substantially solid-phase bonding process; and (d) connecting terminals to at least some of said interconnect conductors so that said terminals are movable with respect to said interconnect body and so that said terminals are exposed for connection to an external substrate.