Patent ID: 6900444
Filing Date: 2005-05-31
Classification: H01J,H01L

Abstract:
1. A workpiece support system for moving a workpiece having a treatment surface into contact with a treatment beam within a treatment chamber having chamber walls comprising: a first rotation member rotatably supported by a first chamber wall, wherein the first rotation member rotates about a first axis of rotation; a second rotation member rotatably coupled to the first rotation member and comprising a rotating shaft that rotates about a second axis of rotation offset from the first axis of rotation; a third rotation member rotatably coupled to the second rotation member that rotates about a third axis of rotation offset from the second axis of rotation and comprising a workpiece holder portion that supports the workpiece in the chamber; and wherein simultaneous movement of the first, second, and third rotation members causes the workpiece holder to traverse a generally linear excursion within the treatment chamber such that throughout the excursion, the ion beam travels a substantially constant distance before contacting the treatment surface of the workpiece.