JPS6243809A - Magnetic head - Google Patents
Magnetic headInfo
- Publication number
- JPS6243809A JPS6243809A JP18250285A JP18250285A JPS6243809A JP S6243809 A JPS6243809 A JP S6243809A JP 18250285 A JP18250285 A JP 18250285A JP 18250285 A JP18250285 A JP 18250285A JP S6243809 A JPS6243809 A JP S6243809A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- gap
- recording
- ferrite
- pseudo
- 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
Links
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明1d、8m111VTR−?DAT、高記録密高
記録密度フレキシブルディスク装置用IC使用ヘッドの
構造に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention 1d, 8m111VTR-? This invention relates to the structure of a DAT, a head using an IC for a high recording density flexible disk device.
最近の磁気記録応用製品はその記録密度が急速に高まっ
てきており特に線記録密度が著しく向上してきている。The recording density of recent magnetic recording applied products has been rapidly increasing, and in particular, the linear recording density has been significantly improved.
これは記録媒体の保持力Hc1に高める事で、記録波長
の短縮化、記録トラック幅の狭小化を実施してもなお光
分な5INi持つ再生信号を得られるからである。こう
いった高保持力磁気媒体の特性を充分に引き出す為の磁
気ヘッドに要求される事は、高保持力磁気媒体を充分K
a化し得る記録磁界′に磁気ヘッドの磁気ギャップ部に
発生させるという事でおる0本発明は、このような高保
持力磁気媒体上に有効にして充分なる記録が可能で、E
IINの良い再生のできる磁気ヘッドを工業的に安価に
提供する事を可能にするものである〇
〔従来の技術〕
前述した工うな特性を有する磁気ヘッドの構造としては
、磁性フェライトの二倍以上の最大飽和磁束密度を有す
るセンダストやCo−Zr系アモルフfス合金薄映?、
従来の出件ノエライトヘッドの磁気VYノゾ部(l(ス
パッタリング法に工って形成[7たものが使わJ]てい
た。こftらの磁気ヘッドにおいては吐気ギャップ部に
貴い最大飽和磁束密度を有する磁性材料が形成しである
ので、磁気ギャップから発生する洩ね磁界は、^b保持
力磁気媒体ケ出化するのに部分であった。第4図は従来
の磁気ヘッドの構造會ボす断面図である。磁性フエフイ
トコアイの磁気ギャップ部表面にはセンダスト薄膜2を
スパッタリング法によって形成した後磁気ギャップ3倉
形成している。この様な磁気ヘッドの場合、磁気ギャッ
プ3と6性フェライトーセンダスト薄膜境界面4Vi、
製造上の都合によりモ行であった。この磁気ヘッドで磁
気す己録媒体1−に信号を1己録再生゛する場合特に再
生する場合に。This is because by increasing the coercive force of the recording medium to Hc1, even if the recording wavelength is shortened and the recording track width is narrowed, it is possible to obtain a reproduced signal having a light intensity of 5 INi. In order to fully bring out the characteristics of these high coercivity magnetic media, what is required of a magnetic head is to
The present invention enables effective and sufficient recording on such high coercive force magnetic media by generating a recording magnetic field that can become a
This makes it possible to industrially provide a magnetic head that can reproduce good IIN at a low cost.〇 [Prior technology] The structure of a magnetic head with the above-mentioned characteristics is more than twice that of magnetic ferrite. Sendust and Co-Zr amorphous alloys with a maximum saturation magnetic flux density of ? ,
The magnetic VY nozzle (l) of the conventional Noelite head was formed using a sputtering method.In these magnetic heads, the maximum saturation magnetic flux density is The leakage magnetic field generated from the magnetic gap is a part of the coercive force caused by the magnetic medium being formed. It is a cross-sectional view of the magnetic fiber core eye. After forming a sendust thin film 2 by sputtering on the surface of the magnetic gap part of the magnetic fiber core, three magnetic gaps are formed. In the case of such a magnetic head, the magnetic gap 3 and the hexagonal ferrite Sendust thin film interface 4Vi,
Due to manufacturing reasons, it was canceled. This magnetic head is used when recording and reproducing signals on the magnetic self-recording medium 1-, especially when reproducing signals.
−性フエフイトーセンダスト薄膜境界面4において、透
a率が著しく変化しているので、疑似的な磁気ギャップ
として作用するため、磁気ギャップ5で拾う再生信号に
5曲記疑似ギャップから流入−iる位相のず7′Lfi
−再生信りが′i1畳される/Cめ再生信号(53↓、
87Nの悪いもの−(’ 、4’ll−〕i’7゜第5
Lシ陸1以り述べた疑似ギヤノブのh−在Vこ関わる欠
lX飄?m+うためVC疑似ギギヤノブ(で−f、;−
1XμI’rつけた従来磁気ヘッドの斜視構造[ゾヒC
ある。け(件ソLソイ1−センダスト薄膜J#界li+
14は磁気ギヤノブ6とV−1平行で(1なくアジマス
川9倉つ+’−f−Cある。こ]1. K工す疑似ギャ
ップからの信号の流入を抑制[2ており、S/Nの良い
再生4を号かIoら7′+6゜し7かL7この様な磁気
ヘッドは、第6図に7Jテす様1−’[1稈によって製
造する為非常に複雑な製漬王梶となっていた0、つ1す
、第6図(t))にボず工うに仏性フェライトパー10
の表面にセンダスト薄膜2ケスバツタリングで形成する
前Vl鰯飾柱ェライトー七ンダスト薄膜境界面4は磁気
ギャップ3と平行て゛あってはならない。この為あらか
じめ18:フエシイトバー10の表面にアジマス角9を
個々の飾柱フェライトーセンダスト薄膜境界面4につけ
ておかなくてはならず工程が複雑になってし1っていた
。- Since the permeability of the Fehuytosen dust thin film boundary surface 4 changes significantly, it acts as a pseudo magnetic gap, so that the reproduced signal picked up by the magnetic gap 5 flows through the pseudo gap. phase difference 7'Lfi
-The reproduction signal is increased by 'i1/C reproduction signal (53↓,
87N bad thing-(',4'll-]i'7゜5th
Is there a lack of the pseudo gear knob mentioned above in L/R1? m + Utame VC pseudo gear knob (-f, ;-
Perspective structure of conventional magnetic head with 1XμI'r [Zohi C
be. KE (Regarding Soi L Soi 1- Sendust Thin Film J #Kai li+
14 is parallel to the magnetic gear knob 6 and V-1. A magnetic head of this kind has a very complicated manufacturing process as it is manufactured by 1-' [1 culm] as shown in Figure 6. The sea urchin Buddha ferrite par 10 was applied to the 0, 1, 1, and 1 (Fig. 6 (t))
Before forming the sendust thin film on the surface of the Vl sardine columnar elite-seven dust thin film by flapping, the boundary surface 4 of the sendust thin film must not be parallel to the magnetic gap 3. For this reason, it was necessary to attach the azimuth angle 9 to the ferrite-sendust thin film boundary surface 4 of each decorative column in advance on the surface of the 18: Feed sheet bar 10, making the process complicated.
〔発明が解決]、Lうとす6間融点及びしj的〕4、発
明は、前述の疑似1−ヤツプによって敗り出さノする雑
音信号倉皆無にし、記録再生用磁気ギャップによっての
み磁気記録媒体からの信号を取り出す事によって雑音の
ないつ1すS/Hの良い再生のできる磁気ヘッドを単線
化された工程で製造する事を目的と[7ている。[Solved by the invention] 4. The invention eliminates the noise signal storage caused by the above-mentioned pseudo 1-yap, and creates a magnetic recording medium using only a magnetic gap for recording and reproduction. The aim is to manufacture a magnetic head that can reproduce noise-free signals with good S/H using a single-wire process [7] by extracting signals from the magnetic head.
本発明の磁気ヘッドは、磁性フェライトの表面に6気フ
エライトとは異なる第二の6性材料を形成した後、第二
の磁性材料の表[n1ケ対同させて磁気ギャップケ形成
する磁気ヘッドにおいて、前記口τ[フーLライトと第
二のa性材料の接合部が記録再生L7エうとす6bb気
媒体の表面に当接しない位titにある事を時隊とする
。In the magnetic head of the present invention, a second hexagonal material different from hexagonal ferrite is formed on the surface of magnetic ferrite, and then the surface of the second magnetic material is formed on the surface of the magnetic ferrite to form a magnetic gap. , it is assumed that the joint between the opening τ [fu L light and the second a-type material is in such a position that it does not come into contact with the surface of the 6bb air medium during recording/reproduction L7.
本発明によれば、磁気ギャップを形成する第二の磁性材
料と磁性フェライトの接合部、つ筐り疑似ギャソゾは記
録再生し工9とする磁気媒体表面に当接する事はない。According to the present invention, the junction between the second magnetic material and the magnetic ferrite, which forms the magnetic gap, does not come into contact with the surface of the magnetic medium used for recording and reproduction 9.
したがって、磁気媒体上VC記録さハたイぎ号に従って
発生し−(いる磁界が疑似ギャップを通して再生さ7]
る弔はない○よって疑似ギャップと磁気ギヤノブにアジ
マス角をつけなくとも再生しようとする信号rユ単に磁
気ギャップに工ってのみ取り出され、雑音のない再生信
号を得る事ができる。Therefore, the magnetic field generated according to the high pitch code recorded on the magnetic medium (7) is reproduced through the pseudo gap.
Therefore, even without adding an azimuth angle to the pseudo gap and the magnetic gear knob, the signal to be reproduced can be extracted simply by modifying the magnetic gap, and a reproduced signal without noise can be obtained.
第1図及び第2図は5本発明の磁気ヘッドの実施例を示
す構造断面図である。いずれも磁性フェライトコア1の
磁気ギャップ近傍には、あらかじめ当接面充填カラス6
を形成した後センダスト薄膜2をスパッタ法で磁気ギャ
ップ3の部分に形成して磁気ヘッドとしたものである。1 and 2 are structural sectional views showing five embodiments of the magnetic head of the present invention. In both cases, the contact surface is filled with a glass 6 in advance near the magnetic gap of the magnetic ferrite core 1.
After forming the magnetic head, a Sendust thin film 2 is formed in the magnetic gap 3 by sputtering to form a magnetic head.
第3図は本発明の磁気ヘッドの製造力法例を示すもので
ある。1ず第5図(a)のように磁性フェライトパー1
0Ycコイル巻線溝12.当接面充填ガラス充填用斜面
13を加りする〇
次に第3図(b)のように当接面光填ガラス6をi@融
光填し′fct&、出気ギャッ磁気11を平坦かつ一面
状に研摩する。この後第6図(c )K示すようにセン
ダスト薄膜2をスパッタリング法で形bK してから、
磁気ギャップ6に相当する厚みの研fiキャップスペー
サー11として810$1スパツタリング法で形成する
。こうしてできた磁性フェライトコアブロックを第3図
(d)のようにガラスボンディングし7′c後に所定の
厚みにスライスして磁気へラドコアを完成する。このよ
うにして製造しfclIB気ヘッドの磁性フェライトー
センダスト薄膜境界面4は、S気記録媒体当接面5より
離ね比上方にある為磁気記録媒体からの信号を読み出す
事はない上、従来の磁気ヘッド製造方法と類似の工程を
とれるので簡単な工程での製造が可能である。FIG. 3 shows an example of the manufacturing force of the magnetic head of the present invention. 1. As shown in Figure 5(a), magnetic ferrite par 1
0Yc coil winding groove 12. Add the contact surface filling glass filling slope 13〇Next, as shown in Fig. 3(b), fill the contact surface optical filling glass 6 with the fusion light 'fct&, and make the air gap magnetic field 11 flat and flat. Polish all over. After that, as shown in FIG. 6(c), a sendust thin film 2 is formed by sputtering, and then
A ground fi cap spacer 11 having a thickness corresponding to the magnetic gap 6 is formed by the 810$1 sputtering method. The magnetic ferrite core block thus produced is glass bonded as shown in FIG. 3(d), and after 7'c, it is sliced into a predetermined thickness to complete a magnetic herad core. The magnetic ferrite-sendust thin film boundary surface 4 of the fclIB air head manufactured in this way is located at a higher separation ratio than the S air recording medium abutting surface 5, so it is not possible to read signals from the magnetic recording medium. Since the process is similar to that of the magnetic head manufacturing method described above, it is possible to manufacture the magnetic head using a simple process.
弗1図、第2図は本発明の磁気ヘッドの実施例を示す構
造断面図。
第6図(a)〜(、i)は本発明の磁気ヘッドの製造方
法例を示す製造工程図。
第4図は従来の8気ヘツドの構造断面図。
第5図は従来の磁気へラドコアの斜視図。
第6図(a)〜(d)は従来の磁気ヘッドの製造方法を
示す製造工程図。
1・・・磁性フェライトコア
2・・・センダスト薄膜
6・・・磁気ギャップ
4・・・磁性フェライト−センダスト薄膜境界面5・・
・磁気記録媒体当接面
6・・・当接面充填ガラス
7・・・記録再生用コイル
8・・・ギヤツブ部俗着ガラス
9・・・アジマス角
10・・・磁性フェライトバー
11・・・磁気ギャップスペーサ−
12・・・コイル巻線溝
15・・・当接面充填ガラス充填用斜面[十、 1nF
(八−)”Jj tilhilt2J第4図Figures 1 and 2 are structural sectional views showing an embodiment of the magnetic head of the present invention. FIGS. 6(a) to 6(i) are manufacturing process diagrams showing an example of the method for manufacturing the magnetic head of the present invention. FIG. 4 is a cross-sectional view of the structure of a conventional 8-air head. FIG. 5 is a perspective view of a conventional magnetic herad core. FIGS. 6(a) to 6(d) are manufacturing process diagrams showing a conventional method of manufacturing a magnetic head. 1... Magnetic ferrite core 2... Sendust thin film 6... Magnetic gap 4... Magnetic ferrite-Sendust thin film interface 5...
・Magnetic recording medium contact surface 6...Abutment surface filling glass 7...Recording/reproduction coil 8...Gear lug portion attached glass 9...Azimuth angle 10...Magnetic ferrite bar 11... Magnetic gap spacer 12... Coil winding groove 15... Glass filling slope for contact surface [10, 1nF
(8-)”Jj tilt2JFigure 4
Claims (1)
の磁性材料を形成した後、第二の磁性材料の表面を対向
させて磁気ギャップを形成する磁気ヘッドにおいて、前
記磁気フェライトと第二の磁性材料の接合部が記録再生
しようとする磁気媒体の表面に当接しない位置にある事
を特徴とする磁気ヘッド。A magnetic head in which a second magnetic material different from the magnetic ferrite is formed on the surface of the magnetic ferrite, and then the surfaces of the second magnetic material are made to face each other to form a magnetic gap. A magnetic head characterized in that the joint portion is located at a position where it does not come into contact with the surface of a magnetic medium to be recorded or reproduced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18250285A JPS6243809A (en) | 1985-08-20 | 1985-08-20 | Magnetic head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18250285A JPS6243809A (en) | 1985-08-20 | 1985-08-20 | Magnetic head |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6243809A true JPS6243809A (en) | 1987-02-25 |
Family
ID=16119412
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18250285A Pending JPS6243809A (en) | 1985-08-20 | 1985-08-20 | Magnetic head |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6243809A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL9002095A (en) * | 1989-09-27 | 1991-04-16 | Mitsubishi Electric Corp | MAGNETIC HEAD OF THE COMPOSITE TYPE AND MAGNETIC RECORDING / PLAYING DEVICE EQUIPPED THEREFOR. |
US5289329A (en) * | 1989-09-27 | 1994-02-22 | Mitsubishi Denki Kabushiki Kaisha | Composite type magnetic head and magnetic recording/playback apparatus adopting the same |
-
1985
- 1985-08-20 JP JP18250285A patent/JPS6243809A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL9002095A (en) * | 1989-09-27 | 1991-04-16 | Mitsubishi Electric Corp | MAGNETIC HEAD OF THE COMPOSITE TYPE AND MAGNETIC RECORDING / PLAYING DEVICE EQUIPPED THEREFOR. |
US5289329A (en) * | 1989-09-27 | 1994-02-22 | Mitsubishi Denki Kabushiki Kaisha | Composite type magnetic head and magnetic recording/playback apparatus adopting the same |
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