Verifying configuration data for configuring a microprocessor or system-on-a-chip is provided. The control system generally includes a driver circuit for each servo motor of the apparatus, an electronic control unit, and an operator interface. The straps are disposed on and coupled to the electrically non-conductive base portion. The focus compensator generates a focus control signal used for controlling a position of the pick up head of the optical disk drive according to the coupled signal during a focusing operation. The resulting targets comprise a relatively low amount of inclusions therein and will result in reduced particulate sputtering leading to a more uniform coating that is sputtered onto the desired substrate.