Patent ID: 8729685

Claim:
A sealing and bonding material structure for joining semiconductor wafers having monolithically integrated components, the sealing and bonding material being provided in strips forming closed loops, comprising: at least two concentric sealing strips ( 10 , 12 ) on one wafer ( 16 ), a first ( 10 ) of said concentric sealing strips surrounding a second ( 12 ) of said concentric sealing strips such that said second of said concentric sealing strips is inside a perimeter of said first of said concentric sealing strips, said concentric sealing strips ( 10 , 12 ) being laid out so as to surround the component(s) ( 18 ) on the wafers to be sealed off when wafers are bonded together, the material(s) in said concentric sealing strips ( 10 , 12 ) being capable of bonding said semiconductor wafers together and provide a seal for the monolithically integrated components, when subjected to force, a compressibility of the concentric sealing strips vary along an extension of the sealing structure on the substrate to accommodate topography on the substrates when bonded together, and the material(s) in the concentric sealing strips configured to permit thermo-compression bonding or eutectic bonding.