Patent ID: 6050218
Filing Date: 2000-04-18
Classification: C23C,H01J

Abstract:
An ion implantation system for causing ions to impact an implantation surface comprising:a) a process chamber defining a chamber interior into which one or more workpieces can be inserted for ion treatment;b) an energy source for setting up an ion plasma within the process chamber;c) a support for positioning one or more workpieces within an interior region of the process chamber so that an implantation surface of the one or more workpieces is positioned within the ion plasma;d) a pulse generator in electrical communication with the workpiece support for applying electrical pulses for attracting ions to the support;e) one or more dosimetry cups including an electrically biased ion collecting surface parallel to the implantation surface; andf) an implantation controller for monitoring signals from the one or more dosimetry cups to control ion implantation of the one or more workpieces.