HK1009356A1 - Magneto-resistive sensor - Google Patents
Magneto-resistive sensorInfo
- Publication number
- HK1009356A1 HK1009356A1 HK98109999A HK98109999A HK1009356A1 HK 1009356 A1 HK1009356 A1 HK 1009356A1 HK 98109999 A HK98109999 A HK 98109999A HK 98109999 A HK98109999 A HK 98109999A HK 1009356 A1 HK1009356 A1 HK 1009356A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- magneto
- resistive sensor
- resistive
- sensor
- 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
- G11B5/127—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
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
- G01R33/09—Magnetoresistive devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
- G01R33/09—Magnetoresistive devices
- G01R33/096—Magnetoresistive devices anisotropic magnetoresistance sensors
-
- 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
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
-
- 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
- G11B5/3906—Details related to the use of magnetic thin film layers or to their effects
- G11B5/3929—Disposition of magnetic thin films not used for directly coupling magnetic flux from the track to the MR film or for shielding
- G11B5/3935—Flux closure films not being part of the track flux guides
-
- 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
- G11B5/398—Specially shaped layers
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Measuring Magnetic Variables (AREA)
- Magnetic Heads (AREA)
- Hall/Mr Elements (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/563,990 US5065094A (en) | 1990-08-07 | 1990-08-07 | Two terminal magnetoresistive sensor having DC blocking capacitor |
Publications (1)
Publication Number | Publication Date |
---|---|
HK1009356A1 true HK1009356A1 (en) | 1999-05-28 |
Family
ID=24252715
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK98109999A HK1009356A1 (en) | 1990-08-07 | 1998-08-19 | Magneto-resistive sensor |
Country Status (7)
Country | Link |
---|---|
US (1) | US5065094A (xx) |
EP (1) | EP0470687B1 (xx) |
JP (1) | JP2693276B2 (xx) |
DE (1) | DE69129347T2 (xx) |
HK (1) | HK1009356A1 (xx) |
MY (1) | MY106391A (xx) |
SG (1) | SG47740A1 (xx) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0478256B1 (en) * | 1990-09-27 | 1997-05-14 | Kabushiki Kaisha Toshiba | Magnetic head |
US5420736A (en) * | 1994-04-15 | 1995-05-30 | International Business Machines Corporation | MR read transducer with thermal noise cancellation |
US5696445A (en) * | 1994-09-26 | 1997-12-09 | Phase Metrics | Method and apparatus for testing the resistive properties of magneto resistive materials using a time variable magnetic field |
US5587857A (en) * | 1994-10-18 | 1996-12-24 | International Business Machines Corporation | Silicon chip with an integrated magnetoresistive head mounted on a slider |
JPH0991623A (ja) * | 1995-09-19 | 1997-04-04 | Hitachi Ltd | 磁気抵抗効果型磁気ヘッド及びその製造方法 |
US5654854A (en) * | 1995-11-30 | 1997-08-05 | Quantum Corporation | Longitudinally biased magnetoresistive sensor having a concave shaped active region to reduce Barkhausen noise by achieving a substantially single magnetic domain state |
JP2000099924A (ja) * | 1998-09-18 | 2000-04-07 | Nippon Hoso Kyokai <Nhk> | 磁気再生ヘッド |
CN1174740C (zh) | 1999-07-09 | 2004-11-10 | 奥索-麦克尼尔药品公司 | 掩味的药用液体制剂 |
CN100346492C (zh) * | 2005-05-20 | 2007-10-31 | 中国科学院合肥物质科学研究院 | 磁敏传感器阵列及其制造方法 |
US9159344B2 (en) | 2013-05-08 | 2015-10-13 | Western Digital Technologies, Inc. | Disk drive read circuit comprising an AC coupled sense amplifier for amplifying a read signal |
US9047917B1 (en) | 2013-11-26 | 2015-06-02 | Western Digital Technologies, Inc. | Disk drive slider with sense amplifier for coupling to a preamp through a supply/bias line and a read signal line |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3370227A (en) * | 1966-09-20 | 1968-02-20 | Gen Cable Corp | Apparatus to measure continuously corona inception and extinction voltages in movinginsulated cable cores |
US4052748A (en) * | 1974-04-01 | 1977-10-04 | U.S. Philips Corporation | Magnetoresistive magnetic head |
GB1545295A (en) * | 1975-04-14 | 1979-05-10 | Philips Electronic Associated | Magnetoresistive read head |
NL168981C (nl) * | 1975-04-15 | 1982-05-17 | Philips Nv | Magnetoweerstand leeskop. |
US4190871A (en) * | 1975-06-13 | 1980-02-26 | U.S. Philips Corporation | Magnetic converter having a magnetoresistive element |
JPS5468266A (en) * | 1977-11-09 | 1979-06-01 | Nec Corp | Detector of rotating angle and number of revolutions |
NL7806568A (nl) * | 1978-06-19 | 1979-12-21 | Philips Nv | Magnetoweerstand leeskop. |
US4255708A (en) * | 1978-12-15 | 1981-03-10 | International Business Machines Corporation | Magnetoresistive position transducer with invariable peak signal |
JPS56101617A (en) * | 1980-01-18 | 1981-08-14 | Olympus Optical Co Ltd | Multichannel magnetic head and its manufacture |
DE3014469A1 (de) * | 1980-04-15 | 1981-10-22 | Siemens AG, 1000 Berlin und 8000 München | Magnetoresistiver sensor |
US4492997A (en) * | 1980-11-28 | 1985-01-08 | Hitachi, Ltd. | Reproducing and amplifying circuit for magnetoresistive head |
JPS5845619A (ja) * | 1981-09-09 | 1983-03-16 | Hitachi Ltd | 磁気抵抗効果型薄膜磁気ヘッド |
DE3279790D1 (en) * | 1981-12-09 | 1989-08-03 | Matsushita Electric Ind Co Ltd | Thin film magnetic head |
CA1209260A (en) * | 1982-10-29 | 1986-08-05 | Tetsuo Sekiya | Magnetic transducer head using magnetroresistance effect |
US4566050A (en) * | 1982-12-30 | 1986-01-21 | International Business Machines Corp. (Ibm) | Skew insensitive magnetic read head |
US4580175A (en) * | 1983-01-14 | 1986-04-01 | Magnetic Peripherals, Inc. | Endless, folded magnetoresistive head |
US4535375A (en) * | 1983-01-14 | 1985-08-13 | Magnetic Peripherals, Inc. | Magnetoresistive head |
JPS59185005A (ja) * | 1983-04-02 | 1984-10-20 | Hitachi Ltd | 多チヤンネル再生回路 |
JPH06105481B2 (ja) * | 1983-07-27 | 1994-12-21 | 株式会社東芝 | 磁気記録再生装置 |
DE3435867A1 (de) * | 1984-09-29 | 1986-04-10 | Bosch Gmbh Robert | Differentialsensor |
US4712144A (en) * | 1985-08-20 | 1987-12-08 | International Business Machines Corporation | Method and apparatus for reading recorded data by a magnetoresistive head |
US4843506A (en) * | 1986-09-29 | 1989-06-27 | Hewlett-Packard Company | Shields of magnetoresistive transducers |
US4841398A (en) * | 1987-02-17 | 1989-06-20 | Magnetic Peripherals Inc. | Non linear magnetoresistive sensor |
US4821133A (en) * | 1987-02-17 | 1989-04-11 | Magnetic Peripherals, Inc. | Bottleneck magnetoresistive element |
JPH01184709A (ja) * | 1988-01-20 | 1989-07-24 | Toshiba Corp | 薄膜磁気ヘッド |
-
1990
- 1990-08-07 US US07/563,990 patent/US5065094A/en not_active Expired - Lifetime
-
1991
- 1991-02-13 JP JP3020040A patent/JP2693276B2/ja not_active Expired - Fee Related
- 1991-03-15 EP EP91302259A patent/EP0470687B1/en not_active Expired - Lifetime
- 1991-03-15 SG SG1996004126A patent/SG47740A1/en unknown
- 1991-03-15 DE DE69129347T patent/DE69129347T2/de not_active Expired - Fee Related
- 1991-03-20 MY MYPI91000463A patent/MY106391A/en unknown
-
1998
- 1998-08-19 HK HK98109999A patent/HK1009356A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SG47740A1 (en) | 1998-04-17 |
MY106391A (en) | 1995-05-30 |
US5065094A (en) | 1991-11-12 |
EP0470687A3 (en) | 1993-10-13 |
EP0470687B1 (en) | 1998-05-06 |
DE69129347T2 (de) | 1998-09-03 |
JP2693276B2 (ja) | 1997-12-24 |
JPH06124422A (ja) | 1994-05-06 |
EP0470687A2 (en) | 1992-02-12 |
DE69129347D1 (de) | 1998-06-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |