DE69104456D1 - Magnetische Legierung, bestehend aus Kobalt, Nickel, Platin und Chrom. - Google Patents
Magnetische Legierung, bestehend aus Kobalt, Nickel, Platin und Chrom.Info
- Publication number
- DE69104456D1 DE69104456D1 DE69104456T DE69104456T DE69104456D1 DE 69104456 D1 DE69104456 D1 DE 69104456D1 DE 69104456 T DE69104456 T DE 69104456T DE 69104456 T DE69104456 T DE 69104456T DE 69104456 D1 DE69104456 D1 DE 69104456D1
- Authority
- DE
- Germany
- Prior art keywords
- chrome
- cobalt
- platinum
- nickel
- magnetic alloy
- 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
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 title 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title 1
- 229910017052 cobalt Inorganic materials 0.000 title 1
- 239000010941 cobalt Substances 0.000 title 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 title 1
- 229910001004 magnetic alloy Inorganic materials 0.000 title 1
- 229910052759 nickel Inorganic materials 0.000 title 1
- 229910052697 platinum Inorganic materials 0.000 title 1
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
- G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
- G11B5/65—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition
- G11B5/657—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent characterised by its composition containing inorganic, non-oxide compound of Si, N, P, B, H or C, e.g. in metal alloy or compound
-
- 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
- G11B5/72—Protective coatings, e.g. anti-static or antifriction
- G11B5/727—Inorganic carbon protective coating, e.g. graphite, diamond like carbon or doped carbon
-
- 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
- G11B5/7369—Two or more non-magnetic underlayers, e.g. seed layers or barrier 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
- G11B5/62—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
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
- G11B5/851—Coating a support with a magnetic layer by sputtering
-
- 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
- Y10T428/12465—All metal or with adjacent metals having magnetic properties, or preformed fiber orientation coordinate with shape
-
- 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
-
- 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)
- Magnetic Record Carriers (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/590,885 US5180640A (en) | 1990-10-01 | 1990-10-01 | Magnetic recording medium comprising a magnetic alloy layer of cobalt nickel, platinum and chromium formed directly on a nickel alloy amorphous underlayer |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69104456D1 true DE69104456D1 (de) | 1994-11-10 |
DE69104456T2 DE69104456T2 (de) | 1995-05-11 |
Family
ID=24364127
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69104456T Expired - Fee Related DE69104456T2 (de) | 1990-10-01 | 1991-10-01 | Magnetische Legierung, bestehend aus Kobalt, Nickel, Platin und Chrom. |
Country Status (4)
Country | Link |
---|---|
US (1) | US5180640A (de) |
EP (1) | EP0479232B1 (de) |
JP (1) | JPH05101369A (de) |
DE (1) | DE69104456T2 (de) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6938825B1 (en) * | 1989-04-24 | 2005-09-06 | Ultracard, Inc. | Data system |
US5282946A (en) * | 1991-08-30 | 1994-02-01 | Mitsubishi Materials Corporation | Platinum-cobalt alloy sputtering target and method for manufacturing same |
TW279972B (de) * | 1993-06-21 | 1996-07-01 | Komag Inc | |
US6156404A (en) * | 1996-10-18 | 2000-12-05 | Komag, Inc. | Method of making high performance, low noise isotropic magnetic media including a chromium underlayer |
USRE38544E1 (en) | 1994-01-28 | 2004-07-06 | Komag, Inc. | Thin film magnetic alloy having low noise, high coercivity and high squareness |
US5631094A (en) * | 1994-01-28 | 1997-05-20 | Komag, Incorporated | Magnetic alloy for improved corrosion resistance and magnetic performance |
US5871621A (en) | 1994-09-27 | 1999-02-16 | Komag, Incorporated | Method of fabricating a textured magnetic storage disk |
DE19508535A1 (de) * | 1995-03-10 | 1996-09-12 | Leybold Materials Gmbh | Sputtertarget aus einer Kobalt-Basislegierung mit hohem Magnetfelddurchgriff |
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 |
JP3249068B2 (ja) * | 1997-05-26 | 2002-01-21 | 富士通株式会社 | 磁気記録方法及び装置 |
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 |
US7487908B1 (en) * | 1999-10-23 | 2009-02-10 | Ultracard, Inc. | Article having an embedded accessible storage member, apparatus and method for using same |
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 |
US6967061B1 (en) * | 1999-11-03 | 2005-11-22 | Seagate Technology Llc | Bilayer magnetic structure for high density recording media |
US6537684B1 (en) * | 2000-08-04 | 2003-03-25 | International Business Machines Corporation | Antiferromagnetically coupled magnetic recording media with boron-free first ferromagnetic film as nucleation layer |
US6969006B1 (en) | 2000-09-15 | 2005-11-29 | Ultracard, Inc. | Rotable portable card having a data storage device, apparatus and method for using same |
US6572989B2 (en) | 2001-06-06 | 2003-06-03 | International Business Machines Corporation | Thin film magnetic recording disk with a chromium-nickel pre-seed layer |
US7502209B2 (en) * | 2005-10-24 | 2009-03-10 | Hitachi Global Storage Technologies Netherlands B.V. | Read sensors having nitrogenated hard bias layers and method of making the same |
SG165302A1 (en) | 2009-03-31 | 2010-10-28 | Wd Media Singapore Pte Ltd | Perpendicular magnetic recording medium and method of manufacturing the same |
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 (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5728309A (en) * | 1980-07-28 | 1982-02-16 | Tdk Corp | Magnetic recording medium |
US4438066A (en) * | 1981-06-30 | 1984-03-20 | International Business Machines Corporation | Zero to low magnetostriction, high coercivity, polycrystalline, Co-Pt magnetic recording media |
JPS58200513A (ja) * | 1982-05-18 | 1983-11-22 | Nec Corp | 磁気記憶媒体 |
JPH0650683B2 (ja) * | 1982-09-30 | 1994-06-29 | 日本電気株式会社 | 磁気記憶体 |
JPS5961106A (ja) * | 1982-09-30 | 1984-04-07 | Nec Corp | 磁気記憶体 |
JPS5988806A (ja) * | 1982-11-12 | 1984-05-22 | Nec Corp | 磁気記憶体 |
US4631202A (en) * | 1983-11-03 | 1986-12-23 | Hewlett-Packard Company | Thin film magnetic recording film |
US4610911A (en) * | 1983-11-03 | 1986-09-09 | Hewlett-Packard Company | Thin film magnetic recording media |
US4816127A (en) * | 1984-11-15 | 1989-03-28 | Xidex Corporation | Method of producing thin-film storage disk |
US4749459A (en) * | 1986-03-10 | 1988-06-07 | Komag, Inc. | Method for manufacturing a thin film magnetic recording medium |
JPH0758540B2 (ja) * | 1986-06-27 | 1995-06-21 | ホ−ヤ株式会社 | 磁気記録媒体 |
US4789598A (en) * | 1987-01-20 | 1988-12-06 | International Business Machines Corporation | Thin film medium for horizontal magnetic recording having an improved cobalt-based alloy magnetic layer |
US4786564A (en) * | 1987-02-25 | 1988-11-22 | Komag, Inc. | Method for manufacturing a magnetic disk having reduced bit shift, minimized noise, increased resolution and uniform magnetic characteristics, and the resulting disk |
KR970002340B1 (ko) * | 1988-07-15 | 1997-03-03 | 미쓰비시 가세이 가부시끼가이샤 | 자기 기록 매체의 제조방법 |
US5045165A (en) * | 1990-02-01 | 1991-09-03 | Komag, Inc. | Method for sputtering a hydrogen-doped carbon protective film on a magnetic disk |
US5049451A (en) * | 1990-08-15 | 1991-09-17 | Hmt Technology Corporation | High-coercivity thin-film recording medium |
US5004652A (en) * | 1990-08-15 | 1991-04-02 | Hmt Technology Corporation | High-coercivity thin-film recording medium and method |
-
1990
- 1990-10-01 US US07/590,885 patent/US5180640A/en not_active Expired - Fee Related
-
1991
- 1991-10-01 EP EP91116759A patent/EP0479232B1/de not_active Expired - Lifetime
- 1991-10-01 JP JP3280823A patent/JPH05101369A/ja active Pending
- 1991-10-01 DE DE69104456T patent/DE69104456T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0479232B1 (de) | 1994-10-05 |
DE69104456T2 (de) | 1995-05-11 |
US5180640A (en) | 1993-01-19 |
JPH05101369A (ja) | 1993-04-23 |
EP0479232A1 (de) | 1992-04-08 |
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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 |