Patent ID: 8202783
Filing Date: 2012-06-19
Classification: C08G,G03F,H01L

Abstract:
1. An interconnect structure comprising: at least one patterned and cured low-k material located directly on a surface of a patterned graded cap layer, wherein said at least one patterned and cured low-k material and said patterned graded cap layer each have conductively filled regions embedded therein, wherein said patterned and cured low-k material is a cured product of a patternable composition 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 said patterned graded cap layer has a gradually varied composition along a vertical direction relative to an underlying substrate and comprises a lower region that functions as a barrier region and an upper region that has the properties of a permanent antireflective coating, wherein said lower region and said upper region are separated by at least one middle region, said at least one middle region including a combination of atoms present in both said lower region and said upper region.