Patent ID: 7264539
Filing Date: 2007-09-04
Classification: B24B

Abstract:
1. A method for processing a microfeature workpiece, comprising: adding a first layer of material to the microfeature workpiece; buffing the microfeature workpiece to remove surface defects from a surface of the first layer of material on the microfeature workpiece by engaging a buffing medium with the surface when the microfeature workpiece is disposed on a first platen and moving at least one of the microfeature workpiece and the buffing medium relative to the other, the buffing medium having a first hardness; after buffing the microfeature workpiece, and before adding a second layer of material to the microfeature workpiece, moving the microfeature workpiece to a second platen different from the first platen and performing a chemical-mechanical polishing process by engaging the microfeature workpiece with a polishing pad and removing material from the first layer of material, the polishing pad having a second hardness greater than the first hardness; and adding the second layer of material to the microfeature workpiece after performing the chemical-mechanical polishing process.