CA1030652A - Internally biased magnetoresistive transducer with distortion attenuation - Google Patents

Internally biased magnetoresistive transducer with distortion attenuation

Info

Publication number
CA1030652A
CA1030652A CA182,966A CA182966A CA1030652A CA 1030652 A CA1030652 A CA 1030652A CA 182966 A CA182966 A CA 182966A CA 1030652 A CA1030652 A CA 1030652A
Authority
CA
Canada
Prior art keywords
magnetoresistive transducer
internally biased
biased magnetoresistive
distortion attenuation
attenuation
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
Application number
CA182,966A
Other languages
English (en)
French (fr)
Other versions
CA182966S (en
Inventor
Richard L. O'day
Frank B. Shelledy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of CA1030652A publication Critical patent/CA1030652A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y25/00—Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance
    • 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
    • G01R33/093—Magnetoresistive devices using multilayer structures, e.g. giant 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
    • G11B5/127—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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Nanotechnology (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Measuring Magnetic Variables (AREA)
  • Magnetic Heads (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
CA182,966A 1972-10-11 1973-10-09 Internally biased magnetoresistive transducer with distortion attenuation Expired CA1030652A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00296743A US3814863A (en) 1972-10-11 1972-10-11 Internally biased magnetoresistive magnetic transducer

Publications (1)

Publication Number Publication Date
CA1030652A true CA1030652A (en) 1978-05-02

Family

ID=23143368

Family Applications (1)

Application Number Title Priority Date Filing Date
CA182,966A Expired CA1030652A (en) 1972-10-11 1973-10-09 Internally biased magnetoresistive transducer with distortion attenuation

Country Status (9)

Country Link
US (1) US3814863A (ja)
JP (1) JPS5325645B2 (ja)
BE (1) BE804293A (ja)
BR (1) BR7307946D0 (ja)
CA (1) CA1030652A (ja)
FR (1) FR2203124B1 (ja)
GB (1) GB1437008A (ja)
IT (1) IT1045379B (ja)
SE (1) SE394043B (ja)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3860965A (en) * 1973-10-04 1975-01-14 Ibm Magnetoresistive read head assembly having matched elements for common mode rejection
US3887945A (en) * 1973-12-12 1975-06-03 Ibm Head assembly for recording and reading, employing inductive and magnetoresistive elements
US4052748A (en) * 1974-04-01 1977-10-04 U.S. Philips Corporation Magnetoresistive magnetic head
NL7405727A (nl) * 1974-04-29 1975-10-31 Philips Nv Magnetoweerstandkop.
US4151574A (en) * 1974-05-24 1979-04-24 U.S. Philips Corporation Magnetic head using a magnetic field-sensitive element and method of manufacturing same
US3908194A (en) * 1974-08-19 1975-09-23 Ibm Integrated magnetoresistive read, inductive write, batch fabricated magnetic head
US4068272A (en) * 1974-11-19 1978-01-10 Matsushita Electric Industrial Co., Ltd. High sensitivity magnetic head using magneto-resistive effect element
JPS5927115B2 (ja) * 1974-12-29 1984-07-03 ソニー株式会社 情報検出装置
NL168981C (nl) * 1975-04-15 1982-05-17 Philips Nv Magnetoweerstand leeskop.
US4024489A (en) * 1975-11-18 1977-05-17 International Business Machines Corporation Magnetoresistive sandwich including sensor electrically parallel with electrical shunt and magnetic biasing layers
US4058705A (en) * 1976-02-05 1977-11-15 Cannon John W Magnetic card reader
US4259703A (en) * 1978-06-20 1981-03-31 Emi Limited Magneto resistive magnetic transducers
US4191977A (en) * 1978-09-29 1980-03-04 International Business Machines Corporation Biasing of magnetoresistive read head using gyrators
US4255772A (en) * 1979-06-29 1981-03-10 International Business Machines Corporation Read/write magnetic head assembly with magnetoresistive sensor
JPS5626817U (ja) * 1979-08-09 1981-03-12
DE3014469A1 (de) * 1980-04-15 1981-10-22 Siemens AG, 1000 Berlin und 8000 München Magnetoresistiver sensor
JPS5816431U (ja) * 1981-07-27 1983-02-01 株式会社明電舎 カツプリング装置
JPS58164411U (ja) * 1982-04-30 1983-11-01 井関農機株式会社 作業機と駆動部との伝導装置連結構造
JPS5977616A (ja) * 1982-10-25 1984-05-04 Trio Kenwood Corp 再生用の薄膜磁気ヘツド
JPS5979419A (ja) * 1982-10-29 1984-05-08 Sony Corp 多チヤンネル磁気抵抗効果型磁気ヘツド
US4555740A (en) * 1983-04-04 1985-11-26 Hewlett-Packard Company Thin film transducer head for inductive recording and magnetoresistive reading
US4663684A (en) * 1984-01-27 1987-05-05 Hitachi, Ltd. Magnetic transducer using magnetoresistance effect
JPS6150203A (ja) * 1984-12-26 1986-03-12 Hitachi Ltd 磁気ヘツドの製造方法
US4712144A (en) * 1985-08-20 1987-12-08 International Business Machines Corporation Method and apparatus for reading recorded data by a magnetoresistive head
JPS62245511A (ja) * 1986-04-18 1987-10-26 Hitachi Ltd 磁気抵抗効果形磁気ヘツド及びその製造方法
US4940511A (en) * 1988-03-28 1990-07-10 International Business Machines Corporation Method for making a magnetoresistive read transducer
US4879619A (en) * 1988-03-28 1989-11-07 International Business Machines Corporation Magnetoresistive read transducer
JP2749066B2 (ja) * 1988-07-22 1998-05-13 株式会社日立製作所 磁気抵抗効果素子
US4972284A (en) * 1989-01-03 1990-11-20 Eastman Kodak Company Deposited permanent magnet for hard and easy axes biasing of a magnetoresistive head
JP3088478B2 (ja) * 1990-05-21 2000-09-18 財団法人生産開発科学研究所 磁気抵抗効果素子
US5266786A (en) * 1991-10-01 1993-11-30 Ncr Corporation Magnetoresistive head for reading magnetic ink characters
US5258884A (en) * 1991-10-17 1993-11-02 International Business Machines Corporation Magnetoresistive read transducer containing a titanium and tungsten alloy spacer layer
US5311385A (en) * 1991-12-18 1994-05-10 Minnesota Mining And Manufacturing Company Magnetoresistive head with integrated bias and magnetic shield layer
US5327303A (en) * 1992-12-18 1994-07-05 Seagate Technology, Inc. MR preamplifier having feedback loops for minimizing differential low frequency components and regulating common mode low frequency components of the preamplifier output signal
US5426542A (en) * 1994-01-21 1995-06-20 Seagate Technology, Inc. Electronically coupled high-impedance magnetoresistive preamplifier
US5420736A (en) * 1994-04-15 1995-05-30 International Business Machines Corporation MR read transducer with thermal noise cancellation
US5500590A (en) * 1994-07-20 1996-03-19 Honeywell Inc. Apparatus for sensing magnetic fields using a coupled film magnetoresistive transducer
US5914630A (en) * 1996-05-10 1999-06-22 Vtc Inc. MR head preamplifier with output signal amplitude which is independent of head resistance
US5731936A (en) * 1996-09-26 1998-03-24 International Business Machines Corporation Magnetoresistive (MR) sensor with coefficient enhancing that promotes thermal stability
US8049490B2 (en) * 2008-08-19 2011-11-01 Infineon Technologies Ag Silicon MEMS resonator devices and methods

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3522390A (en) * 1965-04-12 1970-07-28 Harry H Wieder Magnetoresistive transducer having microscopic hall field shorting
US3731007A (en) * 1971-04-19 1973-05-01 Denki Onkyo Co Ltd Magnetic head having a magneto-resistive bridge circuit

Also Published As

Publication number Publication date
AU6061373A (en) 1975-03-27
SE394043B (sv) 1977-05-31
JPS4974522A (ja) 1974-07-18
BR7307946D0 (pt) 1974-07-25
JPS5325645B2 (ja) 1978-07-28
FR2203124A1 (ja) 1974-05-10
BE804293A (fr) 1973-12-17
FR2203124B1 (ja) 1976-12-03
US3814863A (en) 1974-06-04
GB1437008A (en) 1976-05-26
IT1045379B (it) 1980-05-10

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