Patent ID: 9155201
Filing Date: 2015-10-06
Classification: G03F,H05K

Abstract:
1. A method for making a micro-wire pattern in an article, the method comprising: providing a photocurable layer on a transparent flexible substrate that has a distortion temperature of less than 150° C., forming a pattern of micro-channels within the photocurable layer that has a viscosity of less than 5,000 Pascal-seconds at the temperature at which the micro-channels are formed, the micro-channels having an average width of less than or equal to 4 μm and an average depth to average width ratio that is greater than or equal to 1, exposing the photocurable layer to curing ultraviolet radiation to form a pattern of photocured micro-channels within a photocured layer on the transparent flexible substrate, the photocured micro-channels having an average width of less than or equal to 4 μm and an average depth to average width ratio that is greater than or equal to 1, applying a conductive composition comprising metal nano-particles to the photocured micro-channels, removing any excess conductive composition outside the photocured micro-channels while leaving conductive composition within the pattern of photocured micro-channels, curing the conductive composition in the pattern of photocured micro-channels to provide a pattern of conductive micro-wires in the pattern of photocured micro-channels on the transparent flexible substrate, and optionally, polishing the pattern of conductive micro-wires on the transparent flexible substrate,