JPS58111114A - Thin film magnetic head - Google Patents
Thin film magnetic headInfo
- Publication number
- JPS58111114A JPS58111114A JP20876381A JP20876381A JPS58111114A JP S58111114 A JPS58111114 A JP S58111114A JP 20876381 A JP20876381 A JP 20876381A JP 20876381 A JP20876381 A JP 20876381A JP S58111114 A JPS58111114 A JP S58111114A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic pole
- magnetic
- 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
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
- G11B5/3109—Details
- G11B5/313—Disposition of layers
- G11B5/3143—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding
- G11B5/3146—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding magnetic layers
- G11B5/3153—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding magnetic layers including at least one magnetic thin film coupled by interfacing to the basic magnetic thin film 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
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3109—Details
- G11B5/3116—Shaping of layers, poles or gaps for improving the form of the electrical signal transduced, e.g. for shielding, contour effect, equalizing, side flux fringing, cross talk reduction between heads or between heads and information tracks
Abstract
Description
【発明の詳細な説明】
重置−は薄膜磁気ヘッド、％にナイドクロストークを減
少できる薄膜磁気ヘッドに関するものである。DETAILED DESCRIPTION OF THE INVENTION The superposition relates to a thin film magnetic head, a thin film magnetic head that can reduce side-to-side crosstalk by %.
従来の薄属轟気ヘッドの概要ｔ−第１１１１に示す。An outline of a conventional thin metal roaring head is shown in T-No. 1111.
間中、１はマルチターンニイルである。ｉｉ＠２゜２′
は絶縁層からなるギャップｉｌ介し対向し、；イル１紘
このギヤツブｉ會通〕形成されてｉる。In the meantime, 1 is a multi-turn nail. ii@2゜2'
are opposed to each other with a gap il made of an insulating layer interposed therebetween, and are formed.
このような薄膜磁気ヘッドにお―てａｂｌｌｍｇ。Abllmg in such a thin film magnetic head.
２′の先端ｔｔＩＩＩ＆体に対向させ鋏磁極２．２′の
先端から漏れる磁束を用いて媒体に対する記録、再生【
行うが、この場合、対向ギヤツブ部組外の部分にも碗車
漏れが生じナイドクロストークが発生するという欠点が
６９比。2' tip ttIII & scissor magnetic pole 2. Recording and reproduction on the medium using the magnetic flux leaking from the tip of 2'.
However, in this case, the disadvantage of the 69 ratio is that leakage of the bowl wheel also occurs in the parts outside the opposing gear assembly, causing nid crosstalk.
重置＠は上述の欠点を解決するためのもので、ナイドク
ロストークを減少させることのできる薄膜磁気ヘッドを
提供することｔＩｉ的としている。The superposition is intended to solve the above-mentioned drawbacks, and aims to provide a thin-film magnetic head that can reduce side-to-side crosstalk.
以下、第！ＩＩＫＩＩ遍して本実例の実施例をａ明する
。Below is the part! IIKII An example of this example will be explained.
重置―嬬磁極幽体に磁気ンールドの役ｉｔ兼ね備えさせ
るようにして記録、再生時のナイドクロストークの減少
を針つえもので、轡に磁極先端におりて一方のｉｕｉが
他方の磁極を取シ囲むようにしかも両ｌｌ極墨、５′の
間隔がギヤツブ部組外の部分でギャップ長よル十分長く
なるように１１成されて−る。Overlapping - The purpose is to reduce the side crosstalk during recording and playback by making the magnetic polar body also have the role of a magnetic lead. In addition, the distance between both poles 11 and 5' is made so that it is sufficiently longer than the gap length in the part outside the gear assembly.
第２１１に重置＠を適用し九１１４に先端部の先端面に
沿った断両図を示す０図中、１１．１２絋磁極で、＠＠
１１線、ｌｌ極１２會三方から取ＩＪ属みしかもその対
向面のギヤツブ１ｓ形成部以外の部分の間隔すがギャッ
プ長・よ如十分長くなるように形成されて−る。211 is applied with overlapping @, and 9114 is a cross-sectional view along the tip surface of the tip part.
11 wires, 11 wires, 12 poles, IJ, are taken from three sides, and the distance between the portions of the opposing surfaces other than the gear 1s forming portion is formed to be sufficiently long as the gap length.
ところで、鼻気−路における磁気抵抗は、とｉ５′＠係
を有して−る丸め、本実施例の場合、ギャップ１ｓの部
分での轟気抵ＫをＢム、その他のｓｉｎ対向部分での磁
気抵抗ｔｌ１ｍとすると、但し、Ｋ；當畝
Ａ 、 ＠４１２０帳
ｊ、１１＠１２の厚さ
薄＊ａＵａヘッドでａ、 ・謬α５μ憫、−騙２μ集
、Ａ＝２０μ鵠、Ｂ＝５μ鵠＠度の数値が適用でＩＩる
ので、これらの数１１ ｋ （１）式に入れると、ｊｌ
Ｉ／ｊ１．−２７とな）、磁束は＃１とんどがギャップ
１墨の部分に集中するので、ギャップ１３の部分での記
録、再生が可能である。を北磁砺１１がサイドクロスト
ークに対する磁気シールドの役目【釆比すので、サイド
クロストークの幅を磁極１１の幅以内に押えることかり
能である。By the way, the magnetic resistance in the nasal airway has a relation of i5'@. Assuming that the magnetic resistance tl is 1m, K; length A, @4120 thickness, 11@12 thickness thin*aUa head is a, ・False α5μ, -False 2μ, A=20μ, B= Since the numerical value of 5μ鵠@degree is applied, if we put these numbers into equation (1), we get jl
I/j1. -27), the magnetic flux #1 is mostly concentrated in the gap 1 black portion, so recording and reproduction can be performed in the gap 13 portion. Since the north magnetic pole 11 acts as a magnetic shield against side crosstalk, it is possible to suppress the width of side crosstalk within the width of the magnetic pole 11.
本実施例では、上部磁極１１によりて下ｓａ砺１２ｔｊ
ｌＪ７８む構成とし比が、上下磁極が逆転し九構成でも
よく、この場合も同様の効果が得られる。In this embodiment, the lower magnetic pole 12tj is
It is also possible to use a 1J78 configuration and a 9 configuration in which the upper and lower magnetic poles are reversed, and the same effect can be obtained in this case as well.
以上述べ比よ５に、本尭明によれは、一方の磁極にサイ
ドクロストークに対する磁気シールドの役目を賜たせる
ようになってｉるため、サイドクロストークの幅【一方
の磁極の幅以内に押えてクロストークを減少させる仁と
が可能である。また、重置Ｉｌｌマルチパターンコイル
【用い九場合だけでなく、１ターンコイル【用（ｎｙｔ
場合にも適用可能である。Compared to the above description, according to Takaaki Moto, since one magnetic pole is given the role of magnetic shield against side crosstalk, the width of side crosstalk [within the width of one magnetic pole] It is possible to suppress the crosstalk and reduce the crosstalk. In addition, superimposed multi-pattern coils can be used not only for nine cases, but also for one turn coils (nyt
It is also applicable to cases where
８１１１嬬従来の薄膜磁気ヘッドのａｗｅ示す斜視図、
菖２図嬬本藷明に係る薄膜磁気ヘッドの実施例のａｌＦ
＠先端部の先端面にｉｎ、危断面図で、図中、１はコイ
ル、１１．１２は１ｌｌｉ％ １３はギャップである
。
特許出願人富士通株式会社
代理人弁理士玉蟲久五部
（外５名）
第１図
第２図8111 A perspective view of a conventional thin film magnetic head,
alF of an example of a thin film magnetic head related to Iris 2 illustration Tsumumoto Imei
@ In the distal end surface of the distal end, this is a cross-sectional view. In the figure, 1 is the coil, 11.12 is 1lli%, and 13 is the gap. Patent applicant Fujitsu Ltd. Representative Patent Attorney Gobe Tamamushi (5 others) Figure 1 Figure 2
Claims (1)
に有する薄膜磁気ヘッドにおいて、一方の前ｆｉｌｌ１
１の先端部が他方の前記１ｍａｔｉ方からと１−みしか
も皺一方の磁極の他方の前記磁極との関ｍがギヤツブ形
成ｌＩＩ以外の部分でギャップ長よｐ長＜ｔｉように形
成され大ことを特徴とする薄＊ａ気ヘッド。In a thin film magnetic head having one turn coil on both sides, one front fill 1
It is important that the tip of the first part is wrinkled when viewed from the other side, and that the relationship m between one magnetic pole and the other magnetic pole is formed such that the gap length is less than the gap length at a portion other than the gear tooth formation lII. Thin*a-ki head characterized by.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20876381A JPS58111114A (en) | 1981-12-23 | 1981-12-23 | Thin film magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20876381A JPS58111114A (en) | 1981-12-23 | 1981-12-23 | Thin film magnetic head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58111114A true JPS58111114A (en) | 1983-07-02 |
Family
ID=16561678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20876381A Pending JPS58111114A (en) | 1981-12-23 | 1981-12-23 | Thin film magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58111114A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0214175A1 (en) * | 1985-01-22 | 1987-03-18 | Digital Equipment Corp | Vertical magnetic recording arrangement. |
| JPS6292218A (en) * | 1985-10-18 | 1987-04-27 | Fujitsu Ltd | Thin film magnetic head |
| JPS63153707A (en) * | 1986-12-17 | 1988-06-27 | Nec Corp | Thin film magnetic head |
| EP0333347A2 (en) * | 1988-03-16 | 1989-09-20 | Quantum Corporation | Magnetic read and write head with side shields |
| US4885649A (en) * | 1987-04-01 | 1989-12-05 | Digital Equipment Corporation | Thin film head having a magneto-restrictive read element |
| EP0390347A2 (en) * | 1989-03-28 | 1990-10-03 | Quantum Corporation | Recording head to optimize high density recording |
| US5068959A (en) * | 1988-07-11 | 1991-12-03 | Digital Equipment Corporation | Method of manufacturing a thin film head |
| US5075956A (en) * | 1988-03-16 | 1991-12-31 | Digital Equipment Corporation | Method of making recording heads with side shields |
| US5159511A (en) * | 1987-04-01 | 1992-10-27 | Digital Equipment Corporation | Biasing conductor for MR head |
-
1981
- 1981-12-23 JP JP20876381A patent/JPS58111114A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0214175A1 (en) * | 1985-01-22 | 1987-03-18 | Digital Equipment Corp | Vertical magnetic recording arrangement. |
| JPS6292218A (en) * | 1985-10-18 | 1987-04-27 | Fujitsu Ltd | Thin film magnetic head |
| JPS63153707A (en) * | 1986-12-17 | 1988-06-27 | Nec Corp | Thin film magnetic head |
| US4885649A (en) * | 1987-04-01 | 1989-12-05 | Digital Equipment Corporation | Thin film head having a magneto-restrictive read element |
| US5159511A (en) * | 1987-04-01 | 1992-10-27 | Digital Equipment Corporation | Biasing conductor for MR head |
| EP0333347A2 (en) * | 1988-03-16 | 1989-09-20 | Quantum Corporation | Magnetic read and write head with side shields |
| US5075956A (en) * | 1988-03-16 | 1991-12-31 | Digital Equipment Corporation | Method of making recording heads with side shields |
| US5068959A (en) * | 1988-07-11 | 1991-12-03 | Digital Equipment Corporation | Method of manufacturing a thin film head |
| EP0390347A2 (en) * | 1989-03-28 | 1990-10-03 | Quantum Corporation | Recording head to optimize high density recording |
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