MY179075A - Polishing composition and method for producing magnetic disk substrate - Google Patents

Polishing composition and method for producing magnetic disk substrate

Info

Publication number
MY179075A
MY179075A MYPI2016702539A MYPI2016702539A MY179075A MY 179075 A MY179075 A MY 179075A MY PI2016702539 A MYPI2016702539 A MY PI2016702539A MY PI2016702539 A MYPI2016702539 A MY PI2016702539A MY 179075 A MY179075 A MY 179075A
Authority
MY
Malaysia
Prior art keywords
magnetic disk
disk substrate
polishing composition
polishing
producing magnetic
Prior art date
Application number
MYPI2016702539A
Inventor
Matsunami Yasushi
OOTSU Taira
Yokomichi Noritaka
Original Assignee
Fujimi Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujimi Inc filed Critical Fujimi Inc
Publication of MY179075A publication Critical patent/MY179075A/en

Links

Abstract

This invention provides a polishing composition capable of suitably providing high polishing rates with the use of silica abrasives as well as a method for producing a magnetic disk substrate and a method for polishing a magnetic disk substrate, involving the use of the polishing composition. The polishing composition provided by this invention comprises a silica abrasive; the silica abrasive has an average primary particle diameter of 15 nm or larger and yields an average dissolved silicate ion quantity of 13.5 ppm/g or less in water at pH 9.5. The magnetic disk substrate production method provided by this invention comprises a step (1) of polishing a magnetic disk substrate using the polishing composition.
MYPI2016702539A 2015-07-15 2016-07-13 Polishing composition and method for producing magnetic disk substrate MY179075A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015141292 2015-07-15
JP2016121571A JP6730859B2 (en) 2015-07-15 2016-06-20 Polishing composition and method for manufacturing magnetic disk substrate

Publications (1)

Publication Number Publication Date
MY179075A true MY179075A (en) 2020-10-27

Family

ID=57945438

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2016702539A MY179075A (en) 2015-07-15 2016-07-13 Polishing composition and method for producing magnetic disk substrate

Country Status (2)

Country Link
JP (1) JP6730859B2 (en)
MY (1) MY179075A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019004161A1 (en) * 2017-06-26 2019-01-03 花王株式会社 Silica slurry for polishing-liquid composition
JP7096714B2 (en) * 2017-06-26 2022-07-06 花王株式会社 Silica slurry for polishing liquid composition
JPWO2020196542A1 (en) * 2019-03-27 2020-10-01
JP7292923B2 (en) * 2019-03-29 2023-06-19 株式会社フジミインコーポレーテッド Method for manufacturing magnetic disk substrate, polishing composition and polishing method
TW202128943A (en) * 2019-12-20 2021-08-01 日商Jsr 股份有限公司 Composition for chemical mechanical polishing, chemical mechanical polishing method, and method for manufacturing particles for chemical mechanical polishing
WO2021200148A1 (en) * 2020-03-30 2021-10-07 株式会社フジミインコーポレーテッド Polishing composition

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6280490B1 (en) * 1999-09-27 2001-08-28 Fujimi America Inc. Polishing composition and method for producing a memory hard disk
JP2004186350A (en) * 2002-12-03 2004-07-02 Sanyo Chem Ind Ltd Polishing composition for cmp process
JP2005138197A (en) * 2003-11-04 2005-06-02 Fujimi Inc Polishing composition and polishing method
US20080020680A1 (en) * 2006-07-24 2008-01-24 Cabot Microelectronics Corporation Rate-enhanced CMP compositions for dielectric films
JP6259182B2 (en) * 2012-12-12 2018-01-10 株式会社フジミインコーポレーテッド Polishing liquid for primary polishing of magnetic disk substrate with nickel phosphorus plating
JP2014117754A (en) * 2012-12-13 2014-06-30 Osaka Univ Polishing abrasive grain and polishing method

Also Published As

Publication number Publication date
JP2017025295A (en) 2017-02-02
JP6730859B2 (en) 2020-07-29

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