Patent ID: 8227773

Claim:
A method for addressing a glitch during an implantation of ions into a workpiece, the method comprising: providing an ion beam; determining an ion beam glitch duration threshold, wherein the ion beam glitch duration threshold is based, at least in part, on one or more of a number of translations of the workpiece through an ion beam, a velocity of the translation, and a size of the ion beam; translating the workpiece through the ion beam along at least a slow scan path, therein implanting ions into the workpiece; iteratively determining a current of the ion beam at a plurality of predetermined intervals during the translation of the workpiece; setting a counter to zero when the determined current of the ion beam is greater than a predetermined value; storing a position of the workpiece when the counter is zero and the determined current of the ion beam is less than the predetermined value, therein defining an onset of a glitch; incrementing the counter for each iteration that the determined current of the ion beam is less than the predetermined value and the position of the workpiece is stored; suppressing the ion beam if the counter exceeds the ion beam glitch duration threshold; and repositioning the workpiece at the stored position, restarting the ion beam, and again translating the workpiece through the ion beam along at least the slow scan path, therein implanting a portion of the workpiece associated with the glitch.