Patent ID: 6903348
Filing Date: 2005-06-07
Classification: H01J

Abstract:
1. An ion implanting system comprising: an x-axis rotating part for rotating a main surface of a wafer holder about an x-axis; a y-axis rotating part for rotating the main surface of the wafer holder about a y-axis; a first angle measuring device structured to be moved along with the main surface of the wafer holder, the first angle measuring device for measuring a tilt angle with respect to the x-axis of the main surface of the wafer holder, the first angle measuring device comprising: a second angle measuring device structured to be moved along with the main surface of the wafer holder, the second angle measuring device for measuring a rotation angle with respect to the y-axis of the main surface of the wafer holder; and a controller coupled to the first angle measuring device and the second angle measuring device, the controller structured to, when the measured tilt and measured rotation angles are different from the target tilt angle and a target rotation angle, control the x- and y-axis rotating parts until the measured tilt and measured rotation angles are equal to the target tilt and target rotation angles.