Patent ID: 7682495

Claim:
A sputtering device comprising: a chamber having at least one workpiece support area for receiving a workpiece, the chamber having walls, the chamber being sealable to create a low pressure environment in the chamber while sputtering materials on the workpiece; a target positioned within the chamber, a front side of the target being directed into the chamber for sputtering material from the target onto the workpiece, the target being located in a first plane; a magnet opposing a back side of the target, the magnet being located in a second plane; and an actuator connected to the magnet for scanning the magnet back and forth in an arc in only the second plane over the target during a sputtering operation, the actuator being connected to repeatedly scan the magnet through a first arc across the back side of the target then reverse a direction of the magnet back along the first arc, the first arc being less than 90 degrees.