Patent ID: 7851973
Filing Date: 2010-12-14
Classification: H01L

Abstract:
1. An apparatus for subjecting a target object to vibration and spin, comprising: a target object supported for rotation about a central rotational axis thereof; an actuator assembly connected to the target object for rotation therewith about said axis and adapted to impart vibration to the target object, said actuator assembly including an actuator having a piezo-electric (PE) material and a frame connected to said PE material; a drive control input for receiving a drive control signal, said PE material coupled to said drive control input and cooperable with said frame for effecting, in response to said drive control signal, displacements of said frame relative to said PE material, said displacements producing said vibration; and a spin drive rotationally coupled to said target object for spinning said target object and said actuator assembly about said axis while said actuator assembly vibrates said target object.