ROTARY CATHODES FOR MAGNETRON SPUTTERING SYSTEM

摘要

A magnetron sputtering device is provided that includes a cathode source assembly, and a cathode target assembly removably coupled to the cathode source assembly. The cathode source assembly comprises a rotatable drive shaft, and a water feed tube located in the rotatable drive shaft and coupled to a tube support at an outer end of the cathode source assembly. The cathode target assembly comprises a rotary cathode including a rotatable target cylinder, the rotary cathode removably mounted to the rotatable drive shaft. A magnet bar inside of the target cylinder is coupled to an end portion of the water feed tube. A sweeping mechanism is coupled to the magnet bar and includes a control motor. An indexing pulley is operatively coupled to the control motor, and a magnet bar pulley is coupled to the indexing pulley by a belt. The magnet bar pulley is affixed to the tube support such that any motion of the magnet bar pulley is translated to the magnet bar through the tube support and the water feed tube. The sweeping mechanism imparts a predetermined motion to the magnet bar during sputtering that is independent of target cylinder rotation.