Patent ID: 6794605
Filing Date: 2004-09-21
Classification: A61B,B23K,B24B,B24D

Abstract:
A method for fabricating a chemical mechanical polishing pad comprising the steps of:determining a pattern of micro-holes, grooves, or perforated holes to be formed on a polishing pad; inputting the determined pattern to a computer numerical control (CNC) controller; and driving a laser device adapted to irradiate a laser beam and a table adapted to conduct a three-dimensional movement and rotation while supporting the polishing pad, under a control of the CNC controller based on the inputted pattern, thereby irradiating the laser beam from the laser device onto the polishing pad supported by the table while moving the table in accordance with the inputted pattern, so that micro-holes, grooves, or perforated holes having a pattern corresponding to the determined pattern are formed on the polishing pad.