METHODS AND DEVICES FOR ENHANCING CHEMICAL MECHANICAL POLISHING PAD PROCESSES
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United States of America Patent
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Feb 1, 2012
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Nov 27, 2006
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Abstract
The present invention discloses a CMP device and methods that are capable of improving CMP processing through incorporation of vibration sources which produce vibrations in a direction substantially parallel to the working surface of the CMP pad. The CMP device includes a CMP pad dresser. Such a method can include steps of vibrating a CMP pad, CMP pad dresser, or wafer in a direction substantially parallel to a working surface of the CMP pad and engaging the CMP pad dresser with a working surface of a CMP pad The results of vibrating the superabrasive particles can provide benefits to both the CMP pad and dresser, according to several aspects disclosed herein.
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