Patent ID: 8123918
Filing Date: 2012-02-28
Classification: C23C,H01L

Abstract:
1. A PVD system, the PVD system comprising: a PVD chamber; a susceptor in the chamber; a target material within the chamber, the target material comprising a first side and a second side, the first side being positioned toward a face of a substrate; a magnet device fixed about a rotating member, the rotating member being coupled to the chamber and being coupled to a drive motor, the drive motor being coupled to a driver, the magnet device being positioned from a center region of the rotating member by a predetermined dimension, the magnet device being adapted to move in an annular manner about the center region using the rotating member, the magnet device being rotated at a velocity v and influencing a spatial region, the spatial region being positioned overlying the second side of the target; a sensing device coupled to the magnet device, the sensing device being adapted to capture information associated with an electromagnetic energy field associated with the moving magnet device at the velocity v; a controller coupled to the sensing device, the controller being adapted to process at least a portion of the information to determine if the electromagnetic energy field is within one or more predetermined parameters, the controller being adapted to transfer one or more signals to the driver to adjust the velocity of the moving magnetic device to cause a change to the electromagnetic energy field.