Patent ID: 6031240
Filing Date: 2000-02-29
Classification: H01J

Abstract:
A method of ion implantation by utilizing an apparatus for ion implantation which is provided with a substrate holder for supporting a substrate comprising a substrate support surface and a slit formed through the thickness of at least a portion of said substrate support surface; an ion source for projecting an ion beam toward said substrate holder; a scanning mechanism for scanning the ion beam by moving either said ion beam or said substrate holder in two-dimensional and parallel directions to cover the substrate surface;wherein the method comprises:providing a plurality of data sets which include different position data along a longitudinal direction of said slit and quantity data of ions in the ion beam obtained by measurement of the ion beam at corresponding positions along the longitudinal direction of the slit; andcontrolling the quantity of ions in the ion beam for implantation based on said data sets.