WO2002086871A1 - Non-magnetic metallic layer in a reader gap of a disc drive - Google Patents
Non-magnetic metallic layer in a reader gap of a disc drive Download PDFInfo
- Publication number
- WO2002086871A1 WO2002086871A1 PCT/US2002/009721 US0209721W WO02086871A1 WO 2002086871 A1 WO2002086871 A1 WO 2002086871A1 US 0209721 W US0209721 W US 0209721W WO 02086871 A1 WO02086871 A1 WO 02086871A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- read
- layer
- shield
- write head
- magnetic
- Prior art date
Links
- 239000000758 substrate Substances 0.000 claims abstract description 18
- 230000009467 reduction Effects 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims description 25
- 239000002184 metal Substances 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 18
- 238000000231 atomic layer deposition Methods 0.000 claims description 16
- 238000000151 deposition Methods 0.000 claims description 11
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 7
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 5
- 229910052721 tungsten Inorganic materials 0.000 claims description 5
- 239000010937 tungsten Substances 0.000 claims description 5
- 150000002739 metals Chemical class 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 229910052593 corundum Inorganic materials 0.000 claims 1
- 229910001845 yogo sapphire Inorganic materials 0.000 claims 1
- 239000010410 layer Substances 0.000 description 154
- 230000015556 catabolic process Effects 0.000 description 18
- 239000000463 material Substances 0.000 description 14
- 238000013021 overheating Methods 0.000 description 10
- 230000007704 transition Effects 0.000 description 8
- 238000009413 insulation Methods 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000012774 insulation material Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 3
- 238000005546 reactive sputtering Methods 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000005137 deposition process Methods 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 229910000889 permalloy Inorganic materials 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3103—Structure or manufacture of integrated heads or heads mechanically assembled and electrically connected to a support or housing
-
- 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3109—Details
- G11B5/313—Disposition of layers
- G11B5/3133—Disposition of layers including layers not usually being a part of the electromagnetic transducer structure and providing additional features, e.g. for improving heat radiation, reduction of power dissipation, adaptations for measurement or indication of gap depth or other properties of the structure
-
- 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
-
- 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/33—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only
- G11B5/39—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects
- G11B5/3903—Structure or manufacture of flux-sensitive heads, i.e. for reproduction only; Combination of such heads with means for recording or erasing only using magneto-resistive devices or effects using magnetic thin film layers or their effects, the films being part of integrated structures
- G11B5/3967—Composite structural arrangements of transducers, e.g. inductive write and magnetoresistive read
-
- 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
- G11B5/40—Protective measures on heads, e.g. against excessive temperature
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetic Heads (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002584304A JP2004533698A (en) | 2001-04-18 | 2002-03-27 | Non-magnetic metal layer in the leader gap of a disk drive |
GB0318558A GB2388246A (en) | 2001-04-18 | 2002-03-27 | Non-magnetic metallic layer in a reader gap of a disc drive |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US28462401P | 2001-04-18 | 2001-04-18 | |
US60/284,624 | 2001-04-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002086871A1 true WO2002086871A1 (en) | 2002-10-31 |
Family
ID=23090902
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2002/009721 WO2002086871A1 (en) | 2001-04-18 | 2002-03-27 | Non-magnetic metallic layer in a reader gap of a disc drive |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP2004533698A (en) |
CN (1) | CN1308921C (en) |
GB (1) | GB2388246A (en) |
WO (1) | WO2002086871A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5898548A (en) * | 1997-10-24 | 1999-04-27 | International Business Machines Corporation | Shielded magnetic tunnel junction magnetoresistive read head |
WO2000005712A1 (en) * | 1998-07-21 | 2000-02-03 | Seagate Technology, Llc. | Reducing sensor temperature in magnetoresistive recording heads |
US6195232B1 (en) * | 1995-08-24 | 2001-02-27 | Torohead, Inc. | Low-noise toroidal thin film head with solenoidal coil |
US6400537B2 (en) * | 1996-02-22 | 2002-06-04 | Matsushita Electric Industrial Co., Ltd. | Thin film magnetic head |
US6404603B1 (en) * | 1998-10-06 | 2002-06-11 | Tdk Corporation | Thin film device, thin film head, and magnetoresistive element |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0620228A (en) * | 1992-07-03 | 1994-01-28 | Mitsubishi Electric Corp | Thin-film magnetic head |
-
2002
- 2002-03-27 GB GB0318558A patent/GB2388246A/en not_active Withdrawn
- 2002-03-27 JP JP2002584304A patent/JP2004533698A/en active Pending
- 2002-03-27 WO PCT/US2002/009721 patent/WO2002086871A1/en active Application Filing
- 2002-03-27 CN CNB028083334A patent/CN1308921C/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6195232B1 (en) * | 1995-08-24 | 2001-02-27 | Torohead, Inc. | Low-noise toroidal thin film head with solenoidal coil |
US6400537B2 (en) * | 1996-02-22 | 2002-06-04 | Matsushita Electric Industrial Co., Ltd. | Thin film magnetic head |
US5898548A (en) * | 1997-10-24 | 1999-04-27 | International Business Machines Corporation | Shielded magnetic tunnel junction magnetoresistive read head |
WO2000005712A1 (en) * | 1998-07-21 | 2000-02-03 | Seagate Technology, Llc. | Reducing sensor temperature in magnetoresistive recording heads |
US6404603B1 (en) * | 1998-10-06 | 2002-06-11 | Tdk Corporation | Thin film device, thin film head, and magnetoresistive element |
Also Published As
Publication number | Publication date |
---|---|
JP2004533698A (en) | 2004-11-04 |
GB2388246A (en) | 2003-11-05 |
CN1613110A (en) | 2005-05-04 |
CN1308921C (en) | 2007-04-04 |
GB0318558D0 (en) | 2003-09-10 |
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