Patent ID: 7351315
Filing Date: 2008-04-01
Classification: C25D

Abstract:
1. An electrochemical deposition chamber for depositing material onto microfeature workpieces, the chamber comprising: a processing unit including a first flow system configured to convey a flow of a first processing fluid to a microfeature workpiece at a processing site; a barrier unit having a first portion detachably mounted to the processing unit such that the barrier unit is below the processing unit and a second portion below the first portion, wherein the first portion has an upper region at the processing unit and a lower region canted at an angle, and wherein the second portion has an upper section at the lower region of the first portion; an electrode unit releasably coupled to the second portion of the barrier unit such that the electrode unit is below the barrier unit and spaced apart from the processing unit, the electrode unit including an electrode compartment and a second flow system separate from the first flow system, the second flow system being configured to convey a flow of a second processing fluid through the electrode compartment; a plurality of independent electrodes in the electrode compartment; and a barrier between the lower region of the first portion of the barrier unit and the upper section of the second portion of the barrier unit, wherein the barrier is canted at the angle of the lower region of the first portion of the barrier unit and configured to inhibit selected matter from passing between the first and second processing fluids.