Patent ID: 6710360
Filing Date: 2004-03-23
Classification: H01J,H01L

Abstract:
An ion beam implanter comprising:a) an ion beam source for generating an ion beam moving along a beam line; b) an implantation chamber defining an evacuated interior region wherein a workpiece is positioned to intersect the ion beam for ion implantation of an implantation surface of the workpiece by the ion beam; and c) workpiece support structure coupled to the implantation chamber and supporting the workpiece, the workpiece support structure including: 1) a rotation member coupled to the implantation chamber for changing an implantation angle of the workpiece with respect to a portion of the ion beam within the implantation chamber, the rotation member defining an interior region in fluid communication with the implantation chamber evacuated interior region; and 2) a translation member movably coupled to the rotation member and supporting the workpiece for movement along a path of travel wherein movement of the translation member maintains a constant distance that the ion beam moves through the implantation chamber before striking the implantation surface of the workpiece, the translation member including a scan shaft extending longitudinally and moving in a direction parallel to the path of travel of the workpiece, at least a portion of the scan shaft extending into the rotation member interior region.