JPS59171019A - Thin film magnetic head - Google Patents

Thin film magnetic head

Info

Publication number
JPS59171019A
JPS59171019A JP4424583A JP4424583A JPS59171019A JP S59171019 A JPS59171019 A JP S59171019A JP 4424583 A JP4424583 A JP 4424583A JP 4424583 A JP4424583 A JP 4424583A JP S59171019 A JPS59171019 A JP S59171019A
Authority
JP
Japan
Prior art keywords
substrate
head
thin film
magnetic head
film magnetic
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.)
Pending
Application number
JP4424583A
Other languages
Japanese (ja)
Inventor
Kazuo Shiiki
椎木　一夫
Yoshihiro Shiroishi
芳博 城石
Isamu Yuhito
勇 由比藤
Hitoshi Nakamura
斉 中村
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP4424583A priority Critical patent/JPS59171019A/en
Publication of JPS59171019A publication Critical patent/JPS59171019A/en
Pending legal-status Critical Current

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
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • 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

Abstract

PURPOSE:To obtain a multi-track head which integrates a head element to high density by providing a usual cooling means and a forced cooling means on a substrate. CONSTITUTION:A hollow structure used for both supporting and cooling a substrate 1 is attached to the substrate 1 on which a lot of thin film heads 10 are formed. The substrate 1 is cooled by making a freon flow to a pipe 4 through the structure 2 from a pipe 3. In this way, a multi-track head which integrates the head 10 to high density is obtained.

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明は薄膜磁気ヘッドに係シ、とくに１つの基板上に
多数のヘッド素子を形成したマルチトラックの薄膜磁気
ヘッドに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a thin film magnetic head, and more particularly to a multi-track thin film magnetic head in which a large number of head elements are formed on one substrate.

〔背景技術〕[Background technology]

薄膜ヘッドは比較的大きな記録′電流を流して用いるの
で、同一基板上に多数のヘッド素子を形成すると、発熱
が犬きくなり、このためヘッド素子を高密度に集積でき
ないという欠点があった。Since a thin film head is used by passing a relatively large recording current, forming a large number of head elements on the same substrate increases heat generation, which has the disadvantage that the head elements cannot be integrated at a high density.

〔発明の目的〕[Purpose of the invention]

本発明の目的はヘッド素子を高密度に集積したマルチト
ラックヘッドを提供することにある。An object of the present invention is to provide a multi-track head in which head elements are integrated at high density.

〔発明の概要〕[Summary of the invention]

」−記目的を達成するだめの本発明の構成は、磁気ヘッ
ドの基板に、基板冷却手段を設けることにある。The structure of the present invention to achieve the object described above is to provide a substrate cooling means on the substrate of the magnetic head.

該冷却手段は、通常の冷却手段の他に強制冷却手段をも
設けると尚良い。It is preferable that the cooling means includes a forced cooling means in addition to the normal cooling means.

本発明は）：水の様に基板を冷却することによって記録
電流による発熱を吸収し、高密度に集積したマルチトラ
ックヘッドを可能にする。The present invention absorbs the heat generated by the recording current by cooling the substrate like water, making it possible to create a highly densely integrated multi-track head.

〔発明の実施例〕[Embodiments of the invention]

以下、本発明゛の一実癩例を第１図により説明する。図
において、記号１は薄Ｉ関ヘッド１０を多数形成した基
板、２は基板の支持と冷却等を兼ねた構造物で中ば空に
なっており、フレオンを流し。Hereinafter, an example of the present invention will be explained with reference to FIG. In the figure, symbol 1 is a substrate on which a large number of thin I-type heads 10 are formed, and 2 is a hollow structure that serves both to support and cool the substrate, and Freon is poured into it.

（管３から中空溝遺物２を経て４に流し）で、基板を冷
却する。フレオンは空冷または必要に応じて水冷し、循
環させて用いる。(flowing from tube 3 through hollow groove relic 2 to 4) to cool the substrate. Freon is air-cooled or, if necessary, water-cooled and circulated.

薄膜ヘッドけ１ターンの記録用ヘッドと磁気抵抗効果型
の再生用ヘッド全集積したもので、トラック幅１５０μ
ｍ、）ラックピッチ３００μｍ１で２２トラック分を形
成したものである。使用時には１トラツクあたシ約３０
０ｍＡの電流が流れる。A thin-film head with a one-turn recording head and a magnetoresistive reproduction head integrated, with a track width of 150μ.
m,) 22 tracks were formed with a rack pitch of 300 μm1. Approximately 30 shi per track when in use
A current of 0 mA flows.

基板１を冷却しない従来の場合、電流によって発熱が生
じ、マイグレーション効果に載って導体の寿命が著しく
短くなる。たとえば連続通電を行なった場合、約５ｈで
導体が切断した。基板１を冷却した本発明においては、
約２０ｈ経過後も導′／ 体の切断は生じなかった。基板を冷却しないで同程度の
寿命を得るには同じ基板面積に対し、１０トラツク以下
とする必要があった。In the conventional case where the substrate 1 is not cooled, heat is generated by the current, and the life of the conductor is significantly shortened due to the migration effect. For example, when continuous current was applied, the conductor was disconnected after about 5 hours. In the present invention in which the substrate 1 is cooled,
No breakage of the conductor/body occurred even after approximately 20 hours had elapsed. In order to obtain the same lifespan without cooling the substrate, it was necessary to reduce the number of tracks to 10 or less for the same substrate area.

基板の冷却法としては空気を強制的にふきつける方法も
あるが、この場合記録媒体との間隔が変化しないよう調
整が必要である。その他、冷却法としてはベルチェ素子
を基板またはその近傍に形成して熱電冷却するか、７レ
オ／のあ・わちに水または油を冷却媒体として用いるな
どの方法も同様に適用できる。One way to cool the substrate is to forcibly blow air on it, but in this case it is necessary to adjust the distance between the substrate and the recording medium so that it does not change. Other cooling methods that can be similarly applied include forming a Vertier element on or near the substrate and performing thermoelectric cooling, or using water or oil as a cooling medium.

〔発明の効果〕〔Effect of the invention〕

基板を強制的に冷却する本発明により、高密度に集積し
たマルチトラックヘッドが可能になり、特性も安定して
長寿詣で使用できるようになる。The present invention, which forcibly cools the substrate, enables a multi-track head that is highly integrated, has stable characteristics, and can be used for a long time.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明−の一実施例としての磁気ヘッドの模式
図である。 １・・・薄膜）ラドを形成した基板、２・・・基板の支
持および冷却を兼ねた構造物、３・・・フレオンΩ入口
、４・・・フレオンの出口。 代理人　弁理士　高橋明夫 ％＋　　１ ７′″′ 一％− ′／θFIG. 1 is a schematic diagram of a magnetic head as an embodiment of the present invention. 1...Substrate on which thin film) RAD was formed, 2...Structure that also supports and cools the substrate, 3...Freon Ω inlet, 4...Freon outlet. Agent Patent attorney Akio Takahashi%+ 1 7′″′ 1%− ′/θ

Claims (1)

【特許請求の範囲】[Claims] １、使用される状態における通常冷却手段と、基板を強
制的に冷却する手段とを有したことを特徴とするマルチ
トラック薄膜磁気ヘッド。1. A multi-track thin film magnetic head characterized by having a normal cooling means in a used state and a means for forcibly cooling the substrate.
JP4424583A 1983-03-18 1983-03-18 Thin film magnetic head Pending JPS59171019A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4424583A JPS59171019A (en) 1983-03-18 1983-03-18 Thin film magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4424583A JPS59171019A (en) 1983-03-18 1983-03-18 Thin film magnetic head

Publications (1)

Publication Number Publication Date
JPS59171019A true JPS59171019A (en) 1984-09-27

Family

ID=12686146

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4424583A Pending JPS59171019A (en) 1983-03-18 1983-03-18 Thin film magnetic head

Country Status (1)

Country Link
JP (1) JPS59171019A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01220116A (en) * 1988-02-27 1989-09-01 Nec Kansai Ltd Magnetic head assembly body
US10668483B2 (en) 2012-05-15 2020-06-02 University Of Washington Electronic air cleaners and associated systems and methods

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5285804A (en) * 1976-01-07 1977-07-16 Matsushita Electric Ind Co Ltd Magnetic head and magnetic recording method
JPS5616927A (en) * 1979-07-19 1981-02-18 Matsushita Electric Ind Co Ltd Magnetic head

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5285804A (en) * 1976-01-07 1977-07-16 Matsushita Electric Ind Co Ltd Magnetic head and magnetic recording method
JPS5616927A (en) * 1979-07-19 1981-02-18 Matsushita Electric Ind Co Ltd Magnetic head

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01220116A (en) * 1988-02-27 1989-09-01 Nec Kansai Ltd Magnetic head assembly body
US10668483B2 (en) 2012-05-15 2020-06-02 University Of Washington Electronic air cleaners and associated systems and methods

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