Abstract: An electroplating system has a vessel assembly holding an electrolyte. A weir thief electrode assembly in the vessel assembly includes a plenum inside of a weir frame. The plenum divided into at least a first, a second and a third virtual thief electrode segment. A plurality of spaced apart openings through the weir frame lead out of the plenum. A weir ring is attached to the weir frame and guides flow of current during electroplating. The electroplating system provides process determined radial and circumferential current density control and does not require changing hardware components during set up.

Abstract: The fixture or dowel pin has an axial opening including progressively smaller tapered sections alternating with progressively smaller cylindrical threaded sections. Screws having corresponding tapered tops and threaded sections fit respectively into the sections of the body and, after the pin is inserted in the openings of two plates to be immobilized, the respective screws are tightened to expand the pin body in zones outward from the respective screws and immobilize the pin and plates surrounding the zones.