Patent ID: 7097536
Filing Date: 2006-08-29
Classification: B24B

Abstract:
1. A substrate processing apparatus, comprising: a substrate holder configured to hold a substrate, the substrate holder coupled to a first selected one of an electricity source and an electricity ground to contribute to effecting at least one electrical potential across at least a region of a process side of the substrate; a processing piece adapted to facilitate mechanical and chemical interaction with the process side of the substrate, the processing piece being further coupled to a second selected one of an electricity source and an electricity ground, and configured to contribute to the effecting of the at least one electrical potential across at least a region of the process side of the substrate; wherein the processing piece includes two or more processing elements, the two or more processing elements are independently and variably coupled to the second selected one of an electricity source and an electricity ground to provide different voltages to the two or more processing elements; and wherein the substrate holder has two or more substrate holder portions electrically isolated from each other, each of the two or more substrate holder portions positioned along the substrate hoolder to correspond to a different one of the two or more processing elements, the two or more substrate holder portions are independently and variably coupled to the first selected one of an electricity source and an electricity ground to provide different voltages to the two or more substrate holder portions, and when the two or more processing elements are in electrical communication with the two or more substrate holder portions to provide distinct electrical potentials therebetween each pair of corresponding processing elements and substrate holder portions.