Patent ID: 6579421
Filing Date: 2003-06-17
Classification: C23C,H01J

Abstract:
An ionized sputter deposition chamber for depositing a film on a semiconductor workpiece, comprising:a vacuum chamber; a sputtering target mounted within the chamber; a magnetron magnet positioned adjacent the target; a workpiece support chuck adapted to hold a semiconductor workpiece at a position within the chamber and spaced from the target along a first axis centered on the workpiece support position; a gas inlet adapted to supply a sputtering gas to the interior of the chamber; a first bias electrical power supply connected to provide electrical power to the target to bias said target to attract sputtering ions; a second ionization electrical power supply adapted to provide RF power to a region within the chamber between the target and the workpiece position so as to ionize a substantial portion of the material sputtered from the target; a third bias electrical power supply connected to provide electrical power to the workpiece; and an ionized target material deflecting magnet positioned adjacent the workpiece support chuck and adapted to provide an ionized target material deflecting magnetic field having a magnitude sufficient to deflect a portion of the ionized target material in a direction transverse to said first axis prior to being deposited on the workpiece.