Patent ID: 6239441
Filing Date: 2001-05-29
Classification: H01J,H01L

Abstract:
An ion-implanting apparatus for manufacturing a semiconductor device comprising:an ion implanting instrument for generating ion beams;a beam line through which the ion beams pass;an end station for receiving the ion beams from said beam line, the end station being subjectable to vacuum exhaustion;an open/close valve inserted between the beam line and the end station for separating the end station from the beam line and through which the ion beams are irradiated;a wafer stage arranged inside of the end station for supporting a semiconductor substrate;a heat sink coupled to said wafer stage, for lowering the temperature of a surface of said semiconductor substrate;a heat trap coupled to a side wall of said end station to partly surrounding the semiconductor substrate, for cooling an internal atmosphere of the end station; anda unit for measuring an amount of ions implanted to the substrate including an instrument for measuring charges of ions implanted to the substrate, an integrator coupled to the instrument and a counter coupled to the integrator.