JPS59142728A - Horizontal type thin-film multiple magnetic head and magnetic disk device - Google Patents

Horizontal type thin-film multiple magnetic head and magnetic disk device

Info

Publication number
JPS59142728A
JPS59142728A JP1455783A JP1455783A JPS59142728A JP S59142728 A JPS59142728 A JP S59142728A JP 1455783 A JP1455783 A JP 1455783A JP 1455783 A JP1455783 A JP 1455783A JP S59142728 A JPS59142728 A JP S59142728A
Authority
JP
Japan
Prior art keywords
magnetic
magnetic head
disk
substrate
film
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
JP1455783A
Other languages
Japanese (ja)
Inventor
Mitsumasa Oshiki
押木　満雅
Yoshio Koshikawa
越川　誉生
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP1455783A priority Critical patent/JPS59142728A/en
Publication of JPS59142728A publication Critical patent/JPS59142728A/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
    • G11B5/3176—Structure of heads comprising at least in the transducing gap regions two magnetic thin films disposed respectively at both sides of the gaps
    • G11B5/3179—Structure of heads comprising at least in the transducing gap regions two magnetic thin films disposed respectively at both sides of the gaps the films being mainly disposed in parallel planes
    • G11B5/3183—Structure of heads comprising at least in the transducing gap regions two magnetic thin films disposed respectively at both sides of the gaps the films being mainly disposed in parallel planes intersecting the gap plane, e.g. "horizontal head 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
    • G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier
    • 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
    • G11B5/3103—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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/488—Disposition of heads
    • G11B5/4886—Disposition of heads relative to rotating disc
    • 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/49—Fixed mounting or arrangements, e.g. one head per track
    • G11B5/4969—Details for track selection or addressing

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Magnetic Heads (AREA)

Abstract

PURPOSE:To reduce stages of work and assembly in number and to facilitate the operation by equalizing the overall size of one horizontal type thin-film magnetic head substrate nearly to the size of a magnetic recording disk, and providing respective magnetic heads at positions on the magnetic head substrate where radii corresponding to the radii of respective information recording tracks of the disk are obtained. CONSTITUTION:A gap 4 is provided to isolate a magnetic film 2 on the substrate 1 horizontally or vertically, and a coil 5 produces magnetic flux piercing the gap 4 to establish horizontal or vertical magnetic flux over magnetic heads. The magnetic recording disk has tens of concentric tracks, so it has radii corresponding to the radii of the concentric circles. Tens of magnetic heads 7 are provided at the positions on the head substrate 1 and connected to head terminals 8 provided at the circumference of the substrate 1. Those terminals are connected to a disk driving and terminal connection control logical circuit and a recording and reproducing circuit which are not shown in a figure.

Description

【発明の詳細な説明】 （１）発明の分野 本発明は水平型薄膜マルチ磁気ヘッドおよびこれを組込
んだ磁気ディスク装ＲＶｃ関する。DETAILED DESCRIPTION OF THE INVENTION (1) Field of the Invention The present invention relates to a horizontal thin film multi-magnetic head and a magnetic disk drive RVc incorporating the same.

（２）背景技術 磁気記録ディスクが小径化し、同時に水平型薄膜磁気ヘ
ッド製造に使用する基板が大径化し、これらの直径をと
もに５“とすることが多くなった。(2) Background Art The diameter of magnetic recording disks has become smaller, and at the same time, the diameters of substrates used for manufacturing horizontal thin-film magnetic heads have become larger, and the diameters of both of these have become more and more common.

（３）従来技術と問題点 水平型薄膜磁気ヘッドを製造するには、ヘッドが水平磁
極型（第１図）であっても、垂直磁極型（第２図）であ
っても、多数の磁気ヘッドを１枚の基板の上に形成した
後、通常２個の磁気ヘッドずつ分離し加工してスライダ
とする。これを磁気記録ディスク一対向させ、スライダ
が各記録トラックの上方を移動するように磁気ｆイスク
装置を組立てる。(3) Prior art and problems To manufacture a horizontal thin-film magnetic head, whether the head is a horizontal magnetic pole type (Figure 1) or a vertical magnetic pole type (Figure 2), a large number of magnetic After the heads are formed on a single substrate, two magnetic heads are usually separated and processed to form a slider. A magnetic f-isk device is assembled so that the magnetic recording disks face each other and the slider moves above each recording track.

基板の直径が５“となると、１枚の基板に数百側の磁気
ヘッドを形成することができ、これらを切断分離し、ス
ライダに加工することは、精度を要求されるので、作業
の工数および時間が増大し、この作業に必要な原価は磁
気ヘッドの原価の約２分の１を占めるほどである。When the diameter of the substrate becomes 5", several hundred magnetic heads can be formed on one substrate, and cutting and separating these and processing them into sliders requires precision, so the number of man-hours is reduced. The cost required for this work is about one-half of the cost of the magnetic head.

（４）発明の目的 本発明の目的は、水平型薄膜磁気ヘッドの加工組立て工
程を軽減し、あわせて、この型の磁気ヘッドを組込んだ
磁気ディスク装置の構造および操作を簡便にすることで
ある。(4) Purpose of the Invention The purpose of the present invention is to reduce the processing and assembly process of a horizontal thin-film magnetic head, and to simplify the structure and operation of a magnetic disk device incorporating this type of magnetic head. be.

（５）発明の構成 本発明の１つの面は、１枚の水平型薄膜磁気ヘッド基板
全体の寸法を磁気記録ディスクの寸法とほぼ等しくし、
ディスクの各情報記録トラックの半径に対応する半径を
有する、磁気ヘッド基板上の位置に各磁気ヘッドを設け
た水平型薄膜マルチ磁気ヘッドによって達成することが
できる。(5) Structure of the Invention One aspect of the present invention is to make the entire dimension of one horizontal thin film magnetic head substrate approximately equal to the dimension of the magnetic recording disk,
This can be achieved by a horizontal thin-film multi-magnetic head in which each magnetic head is provided at a position on a magnetic head substrate having a radius corresponding to the radius of each information recording track on the disk.

本発明の他の面は、上記マルチ磁気ヘッド基板を磁気記
録ディスクと一定の間隔を保って、共軸的に固定し、磁
気記録ディスクのみを回転させて、情報の記録・再生を
行なう磁気ディスク装置によって達成することができる
。Another aspect of the present invention is a magnetic disk in which information is recorded and reproduced by coaxially fixing the multi-magnetic head substrate with a magnetic recording disk at a constant distance and rotating only the magnetic recording disk. This can be achieved by a device.

マイクロコンピユー４またはワードプロセッサには直径
５“のフロッピーディスクが多用されるので、本発明の
水平型薄膜マルチ磁気ヘッド基板を組込むのに適合して
おシ、このような磁気ディスク装置は本発明の有利な実
施態様である。Since floppy disks with a diameter of 5" are often used in microcomputers 4 or word processors, they are suitable for incorporating the horizontal thin film multi-magnetic head substrate of the present invention. This is an advantageous embodiment.

（６）実施例 本発明の水平型薄膜マルチ磁気ヘッドに搭載する１つの
磁気ヘッドは、水平記録または垂直記録の磁気記録再生
用ヘッドであシ、第１または第２図に示す構造、を有す
る。すなわち、基板１の上の磁性膜２を、絶縁Ｍ３によ
って、水平または垂直に隔離するギャップ４を設け、コ
イル５によってギヤツノ４に磁束を通し、磁気ヘッドの
上方に水平または垂直の磁束を生じさせる。(6) Embodiment One magnetic head mounted on the horizontal thin film multi-magnetic head of the present invention is a magnetic recording/reproducing head for horizontal recording or perpendicular recording and has the structure shown in FIG. 1 or 2. . That is, a gap 4 is provided to horizontally or vertically isolate the magnetic film 2 on the substrate 1 by an insulator M3, and a magnetic flux is passed through the gear horn 4 by the coil 5 to generate a horizontal or vertical magnetic flux above the magnetic head. .

磁気記録ディスク６は数十率の同心円トラックを有する
′ので、°土の同心円の半径に対応する半径を有する、
ヘッド基板１の位置に同じく数十個の磁気ヘッド７を設
け、基板ｌの周辺に設けたヘッド端子８に接続する。こ
の端子は、図示しないディスク駆動および端子接続制御
論理回路と、記録再生回路とに接続する。第３図では磁
気ヘッド７は１本のらせん上に配置しであるが、数本の
半径上に配置することもできる。Since the magnetic recording disk 6 has several tens of concentric tracks, it has a radius that corresponds to the radius of the concentric circles of the earth.
Similarly, several tens of magnetic heads 7 are provided at the position of the head substrate 1, and connected to head terminals 8 provided around the substrate 1. This terminal is connected to a disk drive and terminal connection control logic circuit (not shown) and a recording/reproducing circuit. In FIG. 3, the magnetic head 7 is arranged on one spiral, but it can also be arranged on several radii.

（力　発明の効果 本発明の水平型薄膜マルチ磁気ヘッドを組込んだ磁気デ
ィスク装置は、従来の磁気ディスク装置で必要とした磁
気ヘッドを駆動するステップモータおよびその制御回路
を必要としないので、磁気ヘッドの製造工程のみならず
、磁気ディスク装置の構成を単純化することができる。(Effects of the Invention) A magnetic disk device incorporating the horizontal thin-film multi-magnetic head of the present invention does not require a step motor for driving the magnetic head and its control circuit, which were required in conventional magnetic disk devices. Not only the head manufacturing process but also the configuration of the magnetic disk device can be simplified.

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

第１図は水平型薄膜水平磁気ヘッドの断面図であシ、第
２図は水平型薄膜垂直磁気ヘッドの断面図であシ、第３
図は本発明の水平型薄膜マルチ磁気ヘッド基板の斜視図
でお）、第４図は本発明の水平型薄膜マルチ磁気ヘッド
基板を磁気記録ディスクと組合せた斜視図でおる。 １・・・磁気ヘッド基板、２・・・磁性膜、３・・・絶
縁膜、４・・・ギャップ、５・・・コイル、６・・・磁
気記録ディスク、７・・・磁気ヘッド、８・・・磁気ヘ
ッド端子。 第１■ 弗２■Figure 1 is a cross-sectional view of a horizontal thin-film horizontal magnetic head, Figure 2 is a cross-sectional view of a horizontal thin-film vertical magnetic head, and Figure 3 is a cross-sectional view of a horizontal thin-film vertical magnetic head.
The figure is a perspective view of a horizontal thin film multi-magnetic head substrate of the present invention), and FIG. 4 is a perspective view of the horizontal thin film multi-magnetic head substrate of the present invention combined with a magnetic recording disk. DESCRIPTION OF SYMBOLS 1... Magnetic head substrate, 2... Magnetic film, 3... Insulating film, 4... Gap, 5... Coil, 6... Magnetic recording disk, 7... Magnetic head, 8 ...Magnetic head terminal. Part 1 ■ 弗 2 ■

Claims (1)

【特許請求の範囲】 １１枚の水平型薄膜磁気ヘッド基板全体の寸法を磁気記
録ディスクの寸法とほぼ等しくし、ディスクの各情報記
録トラックの半径に対応する半径を有する、磁気へ多ド
基板上の位置に各磁気ヘッドを設けた水平型薄膜マルチ
磁気ヘッド。 ２１枚の水平型薄膜磁気ヘッド基板全体の寸法を磁気記
録ディスクの寸法とほぼ等しくし、ディスクの各情報記
録トラックの半径に対応する半径を有する、磁気ヘッド
基板上の位置に各磁気ヘッドを設けた水平型薄膜マルチ
磁気ヘッド基板を、磁気記録ディスクと一定の間隔を保
って、共軸的に固定し、磁気記録ディスクのみを回転さ
せて、情報の記録・再生を行なう磁気ディスク装置。 ３　磁気記録ディスクがフロッピーディスクである、特
許請求の範囲第２項記載の装置。[Scope of Claims] A multilayer magnetic head substrate having eleven horizontal thin-film magnetic head substrates whose overall dimensions are approximately equal to the dimensions of a magnetic recording disk, and whose radius corresponds to the radius of each information recording track on the disk. Horizontal thin-film multi-magnetic head with each magnetic head located at the position. The overall dimensions of the 21 horizontal thin film magnetic head substrates are made approximately equal to the dimensions of the magnetic recording disk, and each magnetic head is provided at a position on the magnetic head substrate having a radius corresponding to the radius of each information recording track of the disk. A magnetic disk device in which a horizontal thin-film multi-magnetic head substrate is fixed coaxially with a magnetic recording disk at a constant distance, and only the magnetic recording disk is rotated to record and reproduce information. 3. The apparatus according to claim 2, wherein the magnetic recording disk is a floppy disk.
JP1455783A 1983-02-02 1983-02-02 Horizontal type thin-film multiple magnetic head and magnetic disk device Pending JPS59142728A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1455783A JPS59142728A (en) 1983-02-02 1983-02-02 Horizontal type thin-film multiple magnetic head and magnetic disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1455783A JPS59142728A (en) 1983-02-02 1983-02-02 Horizontal type thin-film multiple magnetic head and magnetic disk device

Publications (1)

Publication Number Publication Date
JPS59142728A true JPS59142728A (en) 1984-08-16

Family

ID=11864448

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1455783A Pending JPS59142728A (en) 1983-02-02 1983-02-02 Horizontal type thin-film multiple magnetic head and magnetic disk device

Country Status (1)

Country Link
JP (1) JPS59142728A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5041937A (en) * 1989-02-17 1991-08-20 Sony Corporation Head drum forming an air film between an outer surface thereof and a tape medium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5041937A (en) * 1989-02-17 1991-08-20 Sony Corporation Head drum forming an air film between an outer surface thereof and a tape medium

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