Patent ID: 7022211
Filing Date: 2006-04-04
Classification: C25D,H01L

Abstract:
1. A semiconductor wafer holder for use in an electroplating system, said wafer holder comprising: a first holding member having a semiconductor wafer support surface; a second holding member having an opening, and an annular packing comprising a first end projection for contacting a perimeter edge of a semiconductor wafer and a second end projection for contacting the first holding member; a plurality of conductive elements for contacting a conductive layer on the perimeter edge of the semiconductor wafer, the conductive elements being disposed between the first and second end projections of the packing, and being electrically connected to an external electrode; and a ring clamp rotatable relative to the opening of the second holding member to clamp together the first holding member and the second holding member through the semiconductor wafer on the semiconductor wafer support surface and the packing.