POLISHING METHOD AND POLISHING APPARATUS

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United States of America Patent

APP PUB NO 20150140907A1
SERIAL NO

14520242

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A polishing method of polishing a substrate while preventing coarse particles from being discharged onto a polishing pad is disclosed. In this polishing method, a substrate is brought into sliding contact with a polishing pad while a polishing liquid, which has passed through a filter, is supplied onto the polishing pad. The polishing method includes: passing the polishing liquid through the filter while increasing a physical quantity of the polishing liquid until the physical quantity reaches a predetermined set value, the physical quantity being one of flow rate and pressure of the polishing liquid; and polishing the substrate W on the polishing pad while supplying the polishing liquid that has passed through the filter onto the polishing pad.

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Patent Owner(s)

Patent OwnerAddress
EBARA CORPORATION11-1 HANEDA ASAHI-CHO OTA-KU TOKYO 144-8510

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
KOBATA, Itsuki Tokyo, JP 88 340
WADA, Yutaka Tokyo, JP 77 1472
WATANABE, Hiromitsu Tokyo, JP 17 254
YAMAGUCHI, Kuniaki Tokyo, JP 44 274

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