Patent ID: 7989784
Filing Date: 2011-08-02
Classification: H01J

Abstract:
1. Ion implantation apparatus for performing an ion implantation process to implant ions into multiple planar workpieces, the apparatus comprising: a workpiece support wheel mounted for rotation about an axis which is translationally fixed during a said implantation process, said support wheel having a plurality of workpiece supports distributed at a common radius around a periphery of said wheel; and an ion beam generator which is arranged to form, during said implantation process, a non-scanning beam of ions for implanting, said beam being directed along a beam path to an implant location on said wheel periphery, whereby said workpieces on said supports are passed successively through said implant location along a circular scan path by rotation of said wheel, said workpieces each having a predetermined linear dimension in a plane of said workpiece, said predetermined linear dimension extending normal to said scan path when said workpieces are mounted on said supports, and said ion beam generator being adapted such that at said implant location, said beam of ions has a cross-sectional dimension normal to said scan path which is at least 100 mm and sufficient to implant ions over a full extent of said predetermined linear dimension of said workpieces on said supports.