Method and apparatus for dressing polishing pad

The method of the present invention are capable of stabilizing a polishing rate, reducing number of times of performing dressing operations, improving work efficiency and extending a span of life of the polishing pad. The method for dressing a polishing pad, which has been used to polish a surface o...

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Bibliographic Details
Main Author KOYAMA HARUMICHI
Format Patent
LanguageEnglish
Published 01.04.2015
Subjects
DRESSING OR CONDITIONING OF ABRADING SURFACES
FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
GRINDING
MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING
PERFORMING OPERATIONS
POLISHING
TRANSPORTING
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Summary:The method of the present invention are capable of stabilizing a polishing rate, reducing number of times of performing dressing operations, improving work efficiency and extending a span of life of the polishing pad. The method for dressing a polishing pad, which has been used to polish a surface of a work by pressing the work onto the polishing pad fixed on a polishing plate (14, 15) with supplying slurry thereto, by using a grind stone, comprising the step of cleaning the polishing pad by supplying high-pressure cleaning water to the polishing pad, is characterized by the step of dressing the polishing pad by moving a dressing grind stone (26), in the radial direction of the polishing pad, along a surface profile thereof, while performing the cleaning step.
Bibliography:Application Number: CN201110167588