Patent ID: 6638840
Filing Date: 2003-10-28
Classification: C25D,H01L

Abstract:
A method for selectively exteriorizing an electroplated metal on a substrate, comprising the steps of:providing an electroplating structure having; a cell means for containing an electrolyte; a sealing fixture adapted to support a substrate above said cell means, said sealing fixture supports an annular outlying area of a front surface of said substrate, said sealing fixture includes a plurality of complying electrode members affixed with a tilt angle, each of which makes electrical contact with a portion of a peripheral edge of said substrate; said substrate is urged and held against said sealing fixture forcing said substrate against a plurality of complying electrode members, and a counter electrode placed distally in said cell means; means arranged for passing current between said counter electrode and said complying electrode members; a pump means for forcing electrolyte against said front surface of said substrate.