Patent ID: 8960120
Filing Date: 2015-02-24
Classification: B05D,B41J,H01L,Y02E

Abstract:
1. A micro-extrusion system comprising: a printhead assembly including: a valve structure movably disposed adjacent to the associated nozzle outlet orifice of each of said plurality of elongated nozzle channels; a material feed system for pumping a conductive gridline material and a non-conductive sacrificial material into said printhead assembly through said at least one inlet port such that said materials are supplied at a predetermined pressure into said inlet portion of each of said plurality of elongated nozzle channel; and a valve control device for controlling said valve structure between first and second operating states, wherein the printhead assembly is arranged such that, when the valve control device positions the valve structure in the first operating state, a first portion of said valve structure is positioned such that at least one of said conductive gridline and non-conductive sacrificial materials are prevented by said first portion from passing from the outlet orifice of said first nozzle channel onto said substrate, and when the valve control device positions the valve structure in the second operating state, said first portion of said valve structure is positioned such that both of said conductive gridline and non-conductive sacrificial materials flow through said associated nozzle outlet orifice of said first nozzle channel and are simultaneously co-extruded onto said substrate.