DE3888990D1 - Verfahren zur Herstellung eines magnetischen scheibenförmigen Aufzeichnungsträgers und resultierender Aufzeichnungsträger. - Google Patents
Verfahren zur Herstellung eines magnetischen scheibenförmigen Aufzeichnungsträgers und resultierender Aufzeichnungsträger.Info
- Publication number
- DE3888990D1 DE3888990D1 DE3888990T DE3888990T DE3888990D1 DE 3888990 D1 DE3888990 D1 DE 3888990D1 DE 3888990 T DE3888990 T DE 3888990T DE 3888990 T DE3888990 T DE 3888990T DE 3888990 D1 DE3888990 D1 DE 3888990D1
- Authority
- DE
- Germany
- Prior art keywords
- recording medium
- producing
- magnetic disk
- resulting
- shaped recording
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
-
- 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
- G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer
- G11B5/7371—Non-magnetic single underlayer comprising nickel
-
- 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
- G11B5/62—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
- G11B5/73917—Metallic substrates, i.e. elemental metal or metal alloy substrates
- G11B5/73919—Aluminium or titanium elemental or alloy 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
- G11B5/62—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
- G11B5/73921—Glass or ceramic substrates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/90—Magnetic feature
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/922—Static electricity metal bleed-off metallic stock
- Y10S428/9265—Special properties
- Y10S428/928—Magnetic property
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12931—Co-, Fe-, or Ni-base components, alternative to each other
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12944—Ni-base component
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Ceramic Engineering (AREA)
- Magnetic Record Carriers (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/018,650 US4786564A (en) | 1987-02-25 | 1987-02-25 | Method for manufacturing a magnetic disk having reduced bit shift, minimized noise, increased resolution and uniform magnetic characteristics, and the resulting disk |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3888990D1 true DE3888990D1 (de) | 1994-05-19 |
DE3888990T2 DE3888990T2 (de) | 1994-11-03 |
Family
ID=21789056
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3888990T Expired - Fee Related DE3888990T2 (de) | 1987-02-25 | 1988-02-10 | Verfahren zur Herstellung eines magnetischen scheibenförmigen Aufzeichnungsträgers und resultierender Aufzeichnungsträger. |
Country Status (4)
Country | Link |
---|---|
US (1) | US4786564A (de) |
EP (1) | EP0280438B1 (de) |
JP (1) | JP2601491B2 (de) |
DE (1) | DE3888990T2 (de) |
Families Citing this family (57)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR920008222B1 (ko) * | 1987-05-12 | 1992-09-25 | 마쯔시다덴기산교 가부시기가이샤 | 자기기록매체 및 그 제조방법 및 제조장치 |
DE3726464A1 (de) * | 1987-08-08 | 1989-02-16 | Basf Ag | Verfahren zur herstellung magnetischer aufzeichnungstraeger |
US4929499A (en) * | 1988-04-20 | 1990-05-29 | Magnetic Peripherals Inc. | Use of nickel-phosphorous undercoat for particulate media in magnetic storage devices |
US4902583A (en) * | 1989-03-06 | 1990-02-20 | Brucker Charles F | Thick deposited cobalt platinum magnetic film and method of fabrication thereof |
JP2893269B2 (ja) * | 1989-04-11 | 1999-05-17 | コニカ株式会社 | 磁気記録媒体 |
US6938825B1 (en) | 1989-04-24 | 2005-09-06 | Ultracard, Inc. | Data system |
US5162158A (en) * | 1989-07-24 | 1992-11-10 | Magnetic Peripherals Inc. | Low noise magnetic thin film longitudinal media |
US5062938A (en) * | 1990-01-16 | 1991-11-05 | International Business Machines Corporation | High coercivity low noise cobalt alloy magnetic recording medium and its manufacturing process |
US5045165A (en) * | 1990-02-01 | 1991-09-03 | Komag, Inc. | Method for sputtering a hydrogen-doped carbon protective film on a magnetic disk |
JPH0449523A (ja) * | 1990-06-18 | 1992-02-18 | Denki Kagaku Kogyo Kk | 磁気記録媒体の製造法及びその装置 |
US5180640A (en) * | 1990-10-01 | 1993-01-19 | Komag, Inc. | Magnetic recording medium comprising a magnetic alloy layer of cobalt nickel, platinum and chromium formed directly on a nickel alloy amorphous underlayer |
JPH04311812A (ja) * | 1991-03-19 | 1992-11-04 | Internatl Business Mach Corp <Ibm> | 磁気記録媒体、薄膜磁気記録ディスク、及び潤滑システムの形成方法 |
US5356522A (en) * | 1992-02-18 | 1994-10-18 | Hmt Technology Corporation | Method for manufacturing thin-film medium with chromium underlayer gradient |
JPH06145975A (ja) * | 1992-03-20 | 1994-05-27 | Komag Inc | 炭素フィルムをスパタリングする方法及びその製造物 |
US5470447A (en) * | 1992-08-19 | 1995-11-28 | Stormedia, Inc. | Method for applying a protective coating on a magnetic recording head |
US5405646A (en) * | 1992-10-14 | 1995-04-11 | Nanis; Leonard | Method of manufacture thin film magnetic disk |
WO1994015720A1 (en) * | 1993-01-07 | 1994-07-21 | Akashic Memories Corporation | Magnetic recording media on non-metallic substrates and methods for their production |
JP2834380B2 (ja) * | 1993-03-15 | 1998-12-09 | ストアメディア インコーポレーテッド | 金属薄膜型磁気記録媒体 |
US5679473A (en) * | 1993-04-01 | 1997-10-21 | Asahi Komag Co., Ltd. | Magnetic recording medium and method for its production |
JPH0850715A (ja) * | 1994-01-28 | 1996-02-20 | Komag Inc | 低ノイズ,高い保磁力および優れた方形度を有する磁気記録媒体および磁気記録媒体形成方法 |
US5846648A (en) * | 1994-01-28 | 1998-12-08 | Komag, Inc. | Magnetic alloy having a structured nucleation layer and method for manufacturing same |
US6156404A (en) * | 1996-10-18 | 2000-12-05 | Komag, Inc. | Method of making high performance, low noise isotropic magnetic media including a chromium underlayer |
US5658659A (en) * | 1994-01-28 | 1997-08-19 | Komag, Inc. | Magnetic alloy and method for manufacturing same |
US5631094A (en) * | 1994-01-28 | 1997-05-20 | Komag, Incorporated | Magnetic alloy for improved corrosion resistance and magnetic performance |
USRE38544E1 (en) * | 1994-01-28 | 2004-07-06 | Komag, Inc. | Thin film magnetic alloy having low noise, high coercivity and high squareness |
US5736013A (en) * | 1994-04-06 | 1998-04-07 | Komag, Inc. | Method for forming an improved magnetic media including sputtering of selected oxides or nitrides in the magnetic layer, and apparatus for same |
US5798164A (en) | 1995-06-23 | 1998-08-25 | Stormedia, Inc. | Zone textured magnetic recording media |
US5705044A (en) | 1995-08-07 | 1998-01-06 | Akashic Memories Corporation | Modular sputtering machine having batch processing and serial thin film sputtering |
US5915915A (en) * | 1996-03-07 | 1999-06-29 | Komag, Incorporated | End effector and method for loading and unloading disks at a processing station |
US5980997A (en) * | 1996-06-03 | 1999-11-09 | Komag, Incorporated | Method for preparing a substrate for a magnetic disk |
US6103404A (en) * | 1996-06-03 | 2000-08-15 | Komag, Inc. | Laser textured magnetic disk comprising NiNb |
US6232042B1 (en) * | 1998-07-07 | 2001-05-15 | Motorola, Inc. | Method for manufacturing an integral thin-film metal resistor |
US6871787B1 (en) | 1998-07-10 | 2005-03-29 | Ultracard, Inc. | Data storage card having a glass substrate and data surface region and method for using same |
US6143375A (en) * | 1999-01-28 | 2000-11-07 | Komag, Incorporated | Method for preparing a substrate for a magnetic disk |
US7036739B1 (en) | 1999-10-23 | 2006-05-02 | Ultracard, Inc. | Data storage device apparatus and method for using same |
US8397998B1 (en) | 1999-10-23 | 2013-03-19 | Ultracard, Inc. | Data storage device, apparatus and method for using same |
US7487908B1 (en) * | 1999-10-23 | 2009-02-10 | Ultracard, Inc. | Article having an embedded accessible storage member, apparatus and method for using same |
US6969006B1 (en) | 2000-09-15 | 2005-11-29 | Ultracard, Inc. | Rotable portable card having a data storage device, apparatus and method for using same |
JP2002190108A (ja) * | 2000-10-13 | 2002-07-05 | Fuji Electric Co Ltd | 磁気記録媒体およびその製造方法 |
JP2003110209A (ja) * | 2001-10-02 | 2003-04-11 | Matsushita Electric Ind Co Ltd | 電子部品 |
US6755721B2 (en) | 2002-02-22 | 2004-06-29 | Saint-Gobain Ceramics And Plastics, Inc. | Chemical mechanical polishing of nickel phosphorous alloys |
US20040209123A1 (en) * | 2003-04-17 | 2004-10-21 | Bajorek Christopher H. | Method of fabricating a discrete track recording disk using a bilayer resist for metal lift-off |
US8025808B2 (en) | 2003-04-25 | 2011-09-27 | Saint-Gobain Ceramics & Plastics, Inc. | Methods for machine ceramics |
US7306748B2 (en) | 2003-04-25 | 2007-12-11 | Saint-Gobain Ceramics & Plastics, Inc. | Methods for machining ceramics |
US7078796B2 (en) * | 2003-07-01 | 2006-07-18 | Freescale Semiconductor, Inc. | Corrosion-resistant copper bond pad and integrated device |
US7314650B1 (en) * | 2003-08-05 | 2008-01-01 | Leonard Nanis | Method for fabricating sputter targets |
US20050151282A1 (en) * | 2004-01-13 | 2005-07-14 | Harper Bruce M. | Workpiece handler and alignment assembly |
US7329114B2 (en) * | 2004-01-20 | 2008-02-12 | Komag, Inc. | Isothermal imprint embossing system |
US7686606B2 (en) | 2004-01-20 | 2010-03-30 | Wd Media, Inc. | Imprint embossing alignment system |
US8353740B2 (en) | 2005-09-09 | 2013-01-15 | Saint-Gobain Ceramics & Plastics, Inc. | Conductive hydrocarbon fluid |
US7708904B2 (en) | 2005-09-09 | 2010-05-04 | Saint-Gobain Ceramics & Plastics, Inc. | Conductive hydrocarbon fluid |
US8168075B2 (en) | 2006-12-20 | 2012-05-01 | Laconto Ronald W | Methods for machining inorganic, non-metallic workpieces |
US20110048954A1 (en) * | 2009-09-03 | 2011-03-03 | U.S. Government As Represented By The Secretary Of The Army | Enhanced solderability using a substantially pure nickel layer deposited by physical vapor deposition |
US8402638B1 (en) | 2009-11-06 | 2013-03-26 | Wd Media, Inc. | Press system with embossing foil free to expand for nano-imprinting of recording media |
US9330685B1 (en) | 2009-11-06 | 2016-05-03 | WD Media, LLC | Press system for nano-imprinting of recording media with a two step pressing method |
US8496466B1 (en) | 2009-11-06 | 2013-07-30 | WD Media, LLC | Press system with interleaved embossing foil holders for nano-imprinting of recording media |
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 (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3832168A (en) * | 1971-12-13 | 1974-08-27 | Shipley Co | Metal finishing alloy of nickel-copperphosphorus |
US4224381A (en) * | 1978-10-19 | 1980-09-23 | Poly Disc Systems, Inc. | Abrasion resistant magnetic record members |
JPS5634142A (en) * | 1979-08-25 | 1981-04-06 | Hitachi Maxell Ltd | Magnetic recording medium |
JPS5718029A (en) * | 1980-07-04 | 1982-01-29 | Hitachi Ltd | Production of magnetic disk of high recording density |
JPS5771518A (en) * | 1980-10-22 | 1982-05-04 | Dainippon Printing Co Ltd | Magnetic recording medium |
JPS5877028A (ja) * | 1981-10-31 | 1983-05-10 | Tdk Corp | 磁気記録媒体 |
JPS5885923A (ja) * | 1981-11-18 | 1983-05-23 | Nec Corp | 磁気記録体 |
JPS58133624A (ja) * | 1982-02-01 | 1983-08-09 | Seiko Epson Corp | 磁気記録媒体 |
JPS58182129A (ja) * | 1982-04-20 | 1983-10-25 | Tdk Corp | 磁気記録媒体 |
JPS58185026A (ja) * | 1982-04-22 | 1983-10-28 | Tdk Corp | 磁気記録媒体 |
JPS5919229A (ja) * | 1982-07-22 | 1984-01-31 | Matsushita Electric Ind Co Ltd | 磁気記録媒体 |
JPS5975429A (ja) * | 1982-10-22 | 1984-04-28 | Matsushita Electric Ind Co Ltd | 垂直磁気記録媒体 |
JPS5988806A (ja) * | 1982-11-12 | 1984-05-22 | Nec Corp | 磁気記憶体 |
CA1221600A (en) * | 1982-12-17 | 1987-05-12 | Donald T. Barber | Composite strip for preparing a substrate edge for application of labels thereto and method of making same |
JPS59142738A (ja) * | 1983-02-02 | 1984-08-16 | Nec Corp | 磁気記憶体 |
JPS59177726A (ja) * | 1983-03-28 | 1984-10-08 | Toshiba Corp | 垂直磁気デイスク記録媒体 |
JPS59217224A (ja) * | 1983-05-23 | 1984-12-07 | Nec Corp | 磁気記憶体 |
US4610911A (en) * | 1983-11-03 | 1986-09-09 | Hewlett-Packard Company | Thin film magnetic recording media |
JPS60182012A (ja) * | 1984-02-28 | 1985-09-17 | Sony Corp | 薄膜磁気記録媒体 |
JPS60193140A (ja) * | 1984-03-15 | 1985-10-01 | Tokyo Electric Co Ltd | 光学記憶装置 |
JPS60196010A (ja) * | 1984-03-19 | 1985-10-04 | Matsushita Electric Ind Co Ltd | タイマ−装置 |
JPH0618059B2 (ja) * | 1984-04-11 | 1994-03-09 | 株式会社日立製作所 | 垂直磁気記録媒体 |
US4552820A (en) * | 1984-04-25 | 1985-11-12 | Lin Data Corporation | Disc media |
JPS6151619A (ja) * | 1984-08-22 | 1986-03-14 | Asahi Chem Ind Co Ltd | 磁気記録媒体 |
JPS61260420A (ja) * | 1985-05-15 | 1986-11-18 | Hitachi Ltd | 磁気記録体 |
JPS61267922A (ja) * | 1985-05-21 | 1986-11-27 | Fuji Electric Co Ltd | 磁気デイスク |
JPS629526A (ja) * | 1985-07-02 | 1987-01-17 | リン・デ−タ・コ−ポレ−シヨン | デイスクの媒体 |
JPS62157323A (ja) * | 1985-12-29 | 1987-07-13 | Toshiba Corp | 磁気記録媒体 |
-
1987
- 1987-02-25 US US07/018,650 patent/US4786564A/en not_active Expired - Lifetime
- 1987-11-16 JP JP62289246A patent/JP2601491B2/ja not_active Expired - Lifetime
-
1988
- 1988-02-10 EP EP88301101A patent/EP0280438B1/de not_active Expired - Lifetime
- 1988-02-10 DE DE3888990T patent/DE3888990T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2601491B2 (ja) | 1997-04-16 |
EP0280438A3 (en) | 1990-10-10 |
DE3888990T2 (de) | 1994-11-03 |
EP0280438B1 (de) | 1994-04-13 |
EP0280438A2 (de) | 1988-08-31 |
JPS63217525A (ja) | 1988-09-09 |
US4786564A (en) | 1988-11-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |