Patent ID: 8435373
Filing Date: 2013-05-07
Classification: B05D,B29C,C23C,C25D,H01L,H05K,Y10T

Abstract:
1. A continuous roll-to-roll method for making patterns on flexible substrates of desired lengths, the method comprising: using a rotary pattern tool having an embossing surface with embossments in a roll-to-roll embossing process, wherein the rotary pattern tool includes a cylinder and wherein the embossments are disposed on an outer radial surface of the cylinder and present a relief pattern complimentary to a first desired relief pattern for a mask layer; presenting a mask layer to the embossments, wherein the mask layer contacts the embossments; forming apertures in the mask layer, wherein the apertures correspond to the first desired pattern; after forming the mask layer, using the mask layer as a patterning mask in a roll-to-roll process; forming a material layer with a second desired pattern on a flexible substrate based on the first desired pattern of the mask layer; and continuously removing the mask layer by a roll-to-roll process to expose the second desired pattern on the substrate.