Patent ID: 7566886

Claim:
An ion implantation system that optimizes productivity, comprising: a first direction fast scan driver configured to receive commands from a controller; wherein the fast scan driver moves an ion beam at a speed comprising a fast scan speed on workpiece and a fast scan speed off workpiece; an ion generator configured to implant ions into a workpiece by scanning the ion beam in a first direction at the fast scan speed on workpiece; wherein the fast scan speed on workpiece is selected based on a set of performance criteria, the beam profile and the process recipe; a movable stage with a slow scan driver configured to move the workpiece at a slow scan speed in a second direction that is different than the first direction utilizing the controller; and wherein the fast scan speed off workpiece is selected based upon the set of performance criteria, the beam profile and the process recipe; wherein the fast scan speed off workpiece is faster than the fast scan speed on workpiece.