SG11201406485QA - Method for producing hard disk substrate - Google Patents
Method for producing hard disk substrateInfo
- Publication number
- SG11201406485QA SG11201406485QA SG11201406485QA SG11201406485QA SG11201406485QA SG 11201406485Q A SG11201406485Q A SG 11201406485QA SG 11201406485Q A SG11201406485Q A SG 11201406485QA SG 11201406485Q A SG11201406485Q A SG 11201406485QA SG 11201406485Q A SG11201406485Q A SG 11201406485QA
- Authority
- SG
- Singapore
- Prior art keywords
- nip
- lllll
- plating
- substrate
- electroless
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
- G11B5/739—Magnetic recording media substrates
- G11B5/73911—Inorganic substrates
- G11B5/73913—Composites or coated substrates
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
- G11B5/8404—Processes or apparatus specially adapted for manufacturing record carriers manufacturing base layers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
- G11B5/858—Producing a magnetic layer by electro-plating or electroless plating
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemically Coating (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Abstract
(i2) mwu ft iz s-5 iv x m £ titz s issaj n d9) mm IHMMi _ (43) 2013 ^ 10 ^ 17 0 (17.10.2013) I P O I P C T (10) WO 2013/153993 A1 (51) G1 IB 5/84 (2006.01) (21) (22) (25) (26) 4>§fl(£> s In: G11B 5/73 (2006.01) PCT/JP2013/060096 2013 ^4^ 2 0(02.04.2013) I £ \"7 — 3 2 |Jg Tokyo (30) fiBfefix — £: 4#Jg| 2012-089685 2012 ^ 4 ^ 10 0(10.04.2012) JP (71) tti H A: H ;¥_IPI (TOYO KOHAN CO., LTD.) [JP/JP]; T 1028447 KifvtlW-t H E 0#®! 2 S±fe 1 2 Tokyo (JP). (72) Effl TE(ISHIDAGen); T 7448611 Uj • R 1296 #&© 1 Yamaguchi (JP). ifll (MUKAI Nobuaki); T 7448611 UjPftTt&rfT^H# 12 9 6#±feo) 1 fill fa Yamaguchi (JP). • H |5§ JA (YOSHIDA Takahiro); T 7448611 UjPlftTl&rfTKil# 1 2 9 6#±feo)i Yamaguchi (JP). (74) ft IIA: ¥ ^ 51- (HIRAKI Yusuke et al.); T 1056232 m«fP;SEgg2Tg 5# 1 gg ^U->t^XMOR (JP). (8i) IS ft nj f b): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) *!£H (asrofci^isy > ±T(Dmm(Dfcm% V&tf nlfb): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW), 3- — V T (AM, AZ, BY, KG, KZ, RU, TJ, TM), 3 — • V / ^ (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG). - (&&£ 21 &(3)) (54) Title: METHOD FOR PRODUCING HARD DISK SUBSTRATE (54) : /\— KxV AA HI60IJ2-1 BB J±$Mi]2-1 cc kt$$.M2 — 2 mmftx.mztkzs.m-? -a DD EE m o\ o\ m T-H cn i-H o CJ o & AA Embodiment 2-1 BB Comparative example 2-1 CC Comparative example 2-2 DD Almost no mesh-shaped defects are seen EE Mesh-shaped defects arising at portion thereof FF Mesh-shaped defects arising across wide range (57) Abstract: The problem addressed by the present invention is to obtain hard disk a substrate that can obtain a smooth plating film surface by means of electroless NiP plating, and that does not have worsened acid corrosion resistance. The method for produ cing hard a disk substrate includes: a first plating step wherein substrate immersed in a is a first electroless NiP plating bath contain ing an additive having leveling effect, forming a at the surface of the substrate an electroless NiP plating film bottom layer having a lower average surface roughness than the surface; and second a plating step wherein the substrate which to the electroless NiP plat ing film bottom layer has been formed by means of the first plating step is immersed in second electroless a NiP plating bath, form ing an electroless NiP plating film top layer having acid corrosion resistance. From the first plating step until transitioning to the second plating step, contact of the bottom layer to the atmosphere suppressed. is (57) mm-' fn WO 2013/153993 A11 lllll llllllll II llllll III lllll lllll lllll lllll III III III lllll lllll lllll llll lllllll llll llll llll NiP cried; y ¥;# *f§0J<7)/\— KxV l£> 0)tomfifNiPfeo^;§lcSte$;S;SLTl^Stea)a®lc, l CD#)o ^XfMIc J; luIBtom® y Nip ft o £j£M<Z)TJi^BJ$£ *lfcS*J5£, II 2 NiP ft o £;§ lc;S;SLTliB^tt^^-r-S^mfifNiPfeo^SMa)±Ji^BJS-r-Sll2a)feo^XfM<!:^#^ > Hi 0) isb-iZJLmfribBzcDisb-DZJLm^Wiit&^vcDm, TJia)^m^a)gM^WfiJ-r-So
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012089685A JP5890236B2 (en) | 2012-04-10 | 2012-04-10 | Manufacturing method of hard disk substrate |
PCT/JP2013/060096 WO2013153993A1 (en) | 2012-04-10 | 2013-04-02 | Method for producing hard disk substrate |
Publications (1)
Publication Number | Publication Date |
---|---|
SG11201406485QA true SG11201406485QA (en) | 2014-12-30 |
Family
ID=49327561
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG11201406485QA SG11201406485QA (en) | 2012-04-10 | 2013-04-02 | Method for producing hard disk substrate |
Country Status (6)
Country | Link |
---|---|
US (1) | US20150064347A1 (en) |
JP (1) | JP5890236B2 (en) |
CN (1) | CN104364847A (en) |
SG (1) | SG11201406485QA (en) |
TW (1) | TW201407607A (en) |
WO (1) | WO2013153993A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150099143A1 (en) * | 2013-04-05 | 2015-04-09 | Toyo Kohan Co., Ltd. | Method for production of hard disk substrate and hard disk substrate |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62128020A (en) * | 1985-11-28 | 1987-06-10 | Toshikatsu Watabe | Disk for memory medium having amorphous carbon film |
US5141778A (en) * | 1989-10-12 | 1992-08-25 | Enthone, Incorporated | Method of preparing aluminum memory disks having a smooth metal plated finish |
US5578187A (en) * | 1995-10-19 | 1996-11-26 | Enthone-Omi, Inc. | Plating process for electroless nickel on zinc die castings |
US6800121B2 (en) * | 2002-06-18 | 2004-10-05 | Atotech Deutschland Gmbh | Electroless nickel plating solutions |
JP4408210B2 (en) * | 2002-10-31 | 2010-02-03 | 昭和電工株式会社 | Method for manufacturing perpendicular magnetic recording medium |
SG112925A1 (en) * | 2003-12-18 | 2005-07-28 | Fuji Elec Device Tech Co Ltd | Method of pretreating a nonmagnetic substrate and a magnetic recording medium |
JP4719631B2 (en) * | 2006-06-16 | 2011-07-06 | 三友セミコンエンジニアリング株式会社 | Automatic metal film forming apparatus and method for forming metal film on wafer |
JP5525762B2 (en) * | 2008-07-01 | 2014-06-18 | 上村工業株式会社 | Electroless plating solution, electroless plating method using the same, and method for manufacturing wiring board |
JP2011134419A (en) * | 2009-12-25 | 2011-07-07 | Fuji Electric Device Technology Co Ltd | Disk substrate for magnetic recording medium, and manufacturing method of the same |
SG189274A1 (en) * | 2010-10-07 | 2013-05-31 | Toyo Kohan Co Ltd | Method for production of hard disk substrate and hard disk substrate |
-
2012
- 2012-04-10 JP JP2012089685A patent/JP5890236B2/en not_active Expired - Fee Related
-
2013
- 2013-04-02 US US14/391,509 patent/US20150064347A1/en not_active Abandoned
- 2013-04-02 SG SG11201406485QA patent/SG11201406485QA/en unknown
- 2013-04-02 WO PCT/JP2013/060096 patent/WO2013153993A1/en active Application Filing
- 2013-04-02 CN CN201380030531.9A patent/CN104364847A/en active Pending
- 2013-04-08 TW TW102112365A patent/TW201407607A/en unknown
Also Published As
Publication number | Publication date |
---|---|
JP2013218765A (en) | 2013-10-24 |
US20150064347A1 (en) | 2015-03-05 |
CN104364847A (en) | 2015-02-18 |
TW201407607A (en) | 2014-02-16 |
JP5890236B2 (en) | 2016-03-22 |
WO2013153993A1 (en) | 2013-10-17 |
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