Systems and methods for actuating end effectors to condition polishing pads used for polishing microfeature workpieces

Abstract

Systems and methods for activating end effectors used to condition microfeature workpiece polishing pads are disclosed. A system in accordance with one embodiment of the invention includes a rotatable end effector having a conditioning surface configured to condition a microfeature workpiece polishing medium, and a driver coupled to the end effector to rotate the end effector. The driver does not include a flexible, continuous belt coupled to the end effector. For example, the driver can include a motor-driven worm meshed with a worm gear. The system can further include a forcing element coupled to the end effector to apply a force to the end effector that is at least approximately normal to a conditioning surface of the end effector. The forcing element can include a first generally rigid member and a second generally rigid member coupled to the end effector and movable relative to the first generally rigid member to apply the force.