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SU906396A3 - Интегральна комбинированна магнитна головка - Google Patents

Интегральна комбинированна магнитна головка Download PDF

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Publication number
SU906396A3
SU906396A3 SU752163208A SU2163208A SU906396A3 SU 906396 A3 SU906396 A3 SU 906396A3 SU 752163208 A SU752163208 A SU 752163208A SU 2163208 A SU2163208 A SU 2163208A SU 906396 A3 SU906396 A3 SU 906396A3
Authority
SU
USSR - Soviet Union
Prior art keywords
layer
magnetic
dielectric
permalloy
head
Prior art date
Application number
SU752163208A
Other languages
English (en)
Inventor
Тарас Романкив Любомир
Original Assignee
Интернэншл Бизнес Машинз Корпорейшн (Инофирма)
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 Интернэншл Бизнес Машинз Корпорейшн (Инофирма) filed Critical Интернэншл Бизнес Машинз Корпорейшн (Инофирма)
Application granted granted Critical
Publication of SU906396A3 publication Critical patent/SU906396A3/ru

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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
    • 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
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49032—Fabricating head structure or component thereof
    • Y10T29/4906—Providing winding
    • Y10T29/49064—Providing winding by coating

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)

Description

(54) ИНТЕГРАЛЬНАЯ КОМБШ1ИРОВАННАЯ 14АГНИТНАЯ
I
Изобретение относитс  к магнитной записи, а именно к интегральным комбинированным магнитным головкам.
Известна интегральна  комбинированна  магнитна  головка, содержаща  б пленочные обмотки, укрепленные между магнитными пленками. Головка имеет простую конструкцию 3Однако она не позвол ет обеспечить воспроизведение при достаточно ма- Ю лей относительной скорости движени  носител  магнитной записи.
Известна также интегральна  комбинированна  магнитна  головка, соДер- цу жаща  записывак цую пленочную обмот ку, размещенную внутри первого из диэлектрических слоев, укрепленного между первой и второй магнитными пленками, между которыми расположен jo рабочий зазор записи, и воспроизвод щую магниторезистивную пленку. Эта интегральна  комбинированна  магнитна  головка позвол ет обеспечить воспроизведение при достаточно малой 26 ГОЛОВКА
относительной скорости движени  носител  магнитной записи j ZjНедостаток данной интегральной комбинированной магнитной головки состоит в значительных переходных помехах.
Цель изобретени  - уменьшение переходных помех.
Это достигаетс  тем, что в интегральную комбинированную магнитную головку введен магнитный элемент, состо щий из первого магнитного сло  и из сопр женного с ним второго магнитного сло , сопр женного также со второй магнитной пленкой через второй диэлектрический слой, внутри которого размещена воспроизвод ща  магниторезистивна  пленка. При этом толщина второго магнитного сло  меньше толщины первого магнитного сло , а магнитна  проницаемость второго магнитного сло  больше магнитной проницаемости первого магнитного сло .
На чертеже показана предлагаема  интегральна  комбинированна  магнитна  головка, вариант.
Интегральна  комбинированна  магнитна ,головка содержит записывающую пленочную обмотку 1, размещенную внутри первого диэлектрического сло  2, укрепленного между первой и. второй магнитными пленками 3 и 4. При этом между первой и второй магнитными пленками 3 и 4 расположен рабочий зазор записи. Головка содержит, кроме того, магнитный элемент, состо щий из первого магнитного сло  5 и из сопр женного с ним второго магнитного сло  6. Второй магнитный слой 6 сопр жен такАе со второй магнитной пленкой 4 через второй диэлектрический слой 7, внутри которого размещена воспроизвод ща  магниторезистивна  пленка 8. Толщина второго магнитного сло  6 меньше толщины первого магнитного сло  5. Магнитна  проницаемость второго магнитного сло  6 больше магнитной проницаемости первого магнитного сло  5.
В предложенной интегральной комбинированной магнитной головке рабочий зазор- записи обеспечивает намагничивание носител  магнитной записи в соответствии с записываемым сигналом, поступающим на записывающую пленочную обмотку 1. При этом воспроизвод ща  магниторезистивна  пленка 8 позвол ет обеспечить одновременное воспроизведение результата записи с носител  магнитной записи .
Использование изобретени  позвол ет в значительной степени уменьпшть переходные помехи. Изобретение может найти применение дл  магнитной записи и воспроизведени  цифровой информации.

Claims (2)

1.Патент США № 3662122, кл. 179-100.2, 09.05.72.
2.Brock G.В., Shelley F.B.Viele L Hagnetoresistive Read/Write Head, Technical Disclosure Bulletin, v. 15, N 4, September 1972, pp. 12061207 (прототип).
SU752163208A 1974-08-19 1975-08-18 Интегральна комбинированна магнитна головка SU906396A3 (ru)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US498504A US3908194A (en) 1974-08-19 1974-08-19 Integrated magnetoresistive read, inductive write, batch fabricated magnetic head

Publications (1)

Publication Number Publication Date
SU906396A3 true SU906396A3 (ru) 1982-02-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU752163208A SU906396A3 (ru) 1974-08-19 1975-08-18 Интегральна комбинированна магнитна головка

Country Status (17)

Country Link
US (1) US3908194A (ru)
JP (2) JPS5935088B2 (ru)
BE (1) BE830432A (ru)
BR (1) BR7505283A (ru)
CA (1) CA1039849A (ru)
CH (1) CH586443A5 (ru)
DD (1) DD121849A5 (ru)
DE (1) DE2527934C2 (ru)
ES (1) ES440136A1 (ru)
FR (1) FR2282689A1 (ru)
GB (1) GB1479360A (ru)
IT (1) IT1039310B (ru)
NL (1) NL172894C (ru)
SE (1) SE408494B (ru)
SU (1) SU906396A3 (ru)
YU (1) YU201775A (ru)
ZA (1) ZA755016B (ru)

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FR2191186B1 (ru) * 1972-07-03 1976-01-16 Inf Ci Interna Fr
US3813692A (en) * 1972-10-11 1974-05-28 Ibm Internally biased magnetoresistive magnetic transducer
US3814863A (en) * 1972-10-11 1974-06-04 Ibm Internally biased magnetoresistive magnetic transducer
US3840898A (en) * 1972-12-29 1974-10-08 Ibm Self-biased magnetoresistive sensor

Also Published As

Publication number Publication date
AU8408975A (en) 1977-02-24
NL7509732A (nl) 1976-02-23
JPS5935088B2 (ja) 1984-08-27
CH586443A5 (ru) 1977-03-31
ES440136A1 (es) 1977-06-01
DE2527934C2 (de) 1983-03-31
YU201775A (en) 1982-02-28
GB1479360A (en) 1977-07-13
CA1039849A (en) 1978-10-03
DD121849A5 (ru) 1976-08-20
JPS5525886A (en) 1980-02-23
IT1039310B (it) 1979-12-10
BR7505283A (pt) 1976-08-03
SE7508178L (sv) 1976-02-20
SE408494B (sv) 1979-06-11
JPS5144917A (ru) 1976-04-16
DE2527934A1 (de) 1976-03-04
US3908194A (en) 1975-09-23
FR2282689A1 (fr) 1976-03-19
BE830432A (fr) 1975-10-16
NL172894C (nl) 1983-11-01
FR2282689B1 (ru) 1977-07-22
ZA755016B (en) 1977-03-30

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