Patent ID: 8853856
Filing Date: 2014-10-07
Classification: B82Y,H01L

Abstract:
1. A structure comprising: 1. an electrically conductive substrate consisting of a silicon wafer and a dielectric film coating having carbon nanotubes grown directly thereon and permanently affixed thereto, wherein the dielectric film coating comprises at least on member selected from the group consisting of NiPtSi, CoSi, and TiN; 2. the carbon nanotubes being embedded within a cured polymeric fill matrix that comprises at least one latent photoacid generator, but leaving tips of the carbon nanotubes exposed and sticking out of said cured polymeric fill matrix, wherein the polymeric fill matrix comprises a blend of poly(4-hydroxystyrene) and 9-anthracenylmethylated poly(hydroxy styrene) or a blend of tetrahydro-1,3,4,6-tetrakis(methoxymethyl)-imidazo [4,5-d]imidazole-2,5-(1H,3H)-dione and p-nitrobenzyltosylate, provided that the polymeric fill matrix has an index of refraction (n) of about 1.45 to about 2.1 and an extinction coefficient of about 0.01 to about 0.6 at 365, 248, 193 and 157 nm; 3. a layer of patterned and cured photosensitive dielectric material (interconnect pattern) on the cured polymeric fill matrix having a thickness of from about 100 nm to about 2 μm, wherein the tips of the carbon nanotubes penetrate into and are exposed within the interconnect pattern; and 4. an electrically conductive metal filled into the interconnect pattern and in contact with and around the exposed tips of the carbon nanotubes.