Patent ID: 9228270
Filing Date: 2016-01-05
CPC Classification: C25D,Y10T

Claim Text:
1. A lipseal assembly for use in an electroplating clamshell for engaging and supplying electrical current to a semiconductor substrate during electroplating, the lipseal assembly comprising: an elastomeric lipseal for engaging the semiconductor substrate during electroplating, wherein upon engagement the elastomeric lipseal substantially excludes plating solution from a peripheral region of the semiconductor substrate; and one or more flexible contact elements for supplying electrical current to the semiconductor substrate during electroplating, at least a portion of the one or more flexible contact elements positioned on an upper surface of the elastomeric lipseal and configured to flex upon engagement with the semiconductor substrate so as to form a conformal non-planar electrical contact interface with a non-planar surface of the semiconductor substrate.