Patent ID: 9059249
Filing Date: 2015-06-16
Classification: C08G,H01L

Abstract:
1. An interconnect structure comprising: a patterned and cured low-k material located directly on a surface of a substrate, said patterned and cured low-k material is a cured product of a photo-patternable low-k material comprising a functionalized polymer, copolymer, or a blend including at least two of any combination of polymers and/or copolymers having one or more photo/acid-sensitive imageable groups; and at least one least one conductively filled region embedded within an interconnect pattern located within said patterned and cured low-k material, wherein said patterned and cured low-k material is a single layer and has concave curved sidewall surfaces at a lower region of said patterned and cured low-k material, that extends an innermost sidewall surface of the patterned and cured low-k material into said photo-patternable low-k material, wherein said concave curved sidewall surfaces have a bottommost portion that is vertically coincident to an innermost sidewall surface of said at least one conductively filled region, and said patterned and cured low-k material has an upper region that has substantially straight sidewalls that are recessed from the innermost sidewall surface of said at least one conductively filled region and are oriented perpendicular to an uppermost surface of said substrate.