Patent ID: 9070534
Filing Date: 2015-06-30
Classification: H01J,H01L

Abstract:
1. An ion implantation tool comprising: an ion beam generator for generating an ion beam; at least one magnet device for directing said ion beam towards a stage for receiving a substrate thereon; said stage positioned such that said ion beam is incident upon said substrate in a z-direction when said substrate is on said stage, said stage configured to translate both in an x-direction and a y-direction with respect to said ion beam; and at least one set of opposed electrodes disposed outside said ion beam and controllable to change size and position of an area of said ion beam incident upon said substrate, wherein said at least one set of opposed electrodes comprise a plurality of separately controllable sets of opposed electrodes disposed at different locations along a beam direction of said ion beam, and said ion implantation tool is configured to sweep said ion beam back and forth in one of said x-direction and said y-direction when said stage translates in the other of said x-direction and said y-direction.