Patent ID: 6350360
Filing Date: 2002-02-26
Classification: B41C,B41N,B81C,B82Y,C25D,G03F,H05K,Y10T

Abstract:
A method for fabricating an imprint tool master, comprising the step of:a.) providing a metal plate or sheet; b.) forming a first photoresist layer onto said metal plate or sheet; c.) aligning an image pattern mask onto said first photoresist layer, wherein said image pattern mask has portions that block exposure light and portions which transmit exposure light; d.) exposing said first photoresist layer with a first exposure of exposure light; e.) removing said first image pattern mask; f.) developing said first photoresist layer to provide a surface having a 3-dimensional embossing pattern; g.) depositing a conductive film onto said surface thereby providing a master mandrel; h.) electroforming a first metal layer on said conductive film; and i.) separating said first metal layer from said master mandrel wherein said first metal layer comprises said imprint tool master, said imprint tool master having a surface comprising an inverse 3-dimensional image of said embossing pattern, said inverse 3-dimensional image comprising a plurality of recesses.