Patent ID: 9530618
Filing Date: 2016-12-27
CPC Classification: H01J,H01L,Y10T

Claim Text:
1. A method of manufacturing a semiconductor device, the method comprising: placing a workpiece on a chuck, the chuck being located in a plasma chamber; applying a first power signal to a first conductive region of the chuck, the first power signal comprising a first power signal characteristic; applying a second power signal to a second conductive region of the chuck, the second power signal comprising a second power signal characteristic that is different than the first power signal characteristic, wherein the second conductive region is electrically insulated from the first conductive region, wherein the first conductive region comprises a first center point, wherein the second conductive region comprises a second center point, and wherein the first center point and the second center point are on a common central axis extending away from the chuck along a direction perpendicular to a major surface of the chuck; while the first and second power signals are applied, etching the workpiece or depositing a material on the workpiece; and removing the workpiece from the chuck.