Patent ID: 9475963
Filing Date: 2016-10-25
CPC Classification: C08K,C09J,H05K,Y10T

Claim Text:
1. An ACF comprising a substrate, a layer of an adhesive on the surface of the substrate, a first tier of conductive particles arranged in a non-random array partially embedded in a surface of the adhesive layer, the first tier being formed by transfer of conductive particles from a carrier belt having a stitching line to the surface of the adhesive layer, the portion of the first tier corresponding to the stitching line being free of or being essentially free of conductive particles, and a second tier of conductive particles arranged in a non-random array partially embedded in the surface of the same surface of the adhesive layer as the first tier of conductive particles and the second tier overcoating the portion of the first tier corresponding to the stitching line so as to provide conductive particles in the area of the stitching line wherein the depths of the partially embedded first and second tiers of conductive particles are distinctly different.