Patent ID: 7564138
Filing Date: 2009-07-21
Classification: B81B,B81C,H01L

Abstract:
1. An integrated circuit chip comprising: one or more heat-sensitive structures; at least one spacer overlying one surface of the integrated circuit chip, the spacer made from a heat curable spacer-bonding material selected from the group consisting of polyimide and photo benzocyclobutene, that bonds to another integrated circuit chip, said spacer being positioned on the surface sufficiently distant from said one or more heat sensitive structures such that said heat sensitive structures are not substantially affected by heating of said spacer, said spacer including; wherein upon passing an electric current through the wire, the spacer is heated to a curing temperature of the spacer bonding material and maintained for a time sufficient to complete its curing, such that where the wire is offset, it is surrounded by spacer bonding material which is interposed between the wire and the integrated circuit chips.