JPH0243246B2 - - Google Patents
Info
- Publication number
- JPH0243246B2 JPH0243246B2 JP11640284A JP11640284A JPH0243246B2 JP H0243246 B2 JPH0243246 B2 JP H0243246B2 JP 11640284 A JP11640284 A JP 11640284A JP 11640284 A JP11640284 A JP 11640284A JP H0243246 B2 JPH0243246 B2 JP H0243246B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic head
- film magnetic
- thin film
- recording medium
- protective plate
- 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.)
- Expired
Links
- 239000010409 thin film Substances 0.000 claims description 24
- 230000001681 protective effect Effects 0.000 claims description 19
- 239000000758 substrate Substances 0.000 claims description 19
- 239000000463 material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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
- G11B5/40—Protective measures on heads, e.g. against excessive temperature
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/50—Reconditioning of record carriers; Cleaning of record carriers ; Carrying-off electrostatic charges
-
- 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
- G11B5/3106—Structure or manufacture of integrated heads or heads mechanically assembled and electrically connected to a support or housing where the integrated or assembled structure comprises means for conditioning against physical detrimental influence, e.g. wear, contamination
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は記録媒体との当接を良好としかつプロ
セスを簡略化した薄膜磁気ヘツドに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a thin film magnetic head that has good contact with a recording medium and has a simplified process.
薄膜磁気ヘツド素子を形成した基板と記録媒体
と当接した場合の該素子を保護するための保護板
を一体化した磁気ヘツドとしては、特開昭52−
127218公報に示される構造が一般的である。
A magnetic head that integrates a substrate on which a thin-film magnetic head element is formed and a protective plate for protecting the element when it comes into contact with a recording medium is disclosed in Japanese Patent Application Laid-open No. 1983-1999.
The structure shown in Publication No. 127218 is common.
このような構造では、保護板を一体化するため
のプロセスが複雑であるとともに、該基板と保護
板間の接着層の材質が問題となり、耐摩耗性が充
分でない場合、記録媒体の当接により段差を生
じ、ゴミづまり等によるスペーシングにより特性
劣下を生ずる。 In such a structure, the process for integrating the protective plate is complicated, and the material of the adhesive layer between the substrate and the protective plate becomes a problem. This creates a step difference, and due to spacing due to dust clogging, etc., characteristics deteriorate.
本発明の目的は、上記の問題点をなくし、製造
プロセスの簡便化を図りかつ記録媒体との良好な
当接が得られる薄膜磁気ヘツドを提供することに
ある。
SUMMARY OF THE INVENTION An object of the present invention is to provide a thin film magnetic head that eliminates the above problems, simplifies the manufacturing process, and provides good contact with a recording medium.
本発明の特徴は、薄膜磁気ヘツド素子を形成し
た基板と保護板間にある一定の間隔を開けるとと
もに、保護板の該基板側の対向面形状を、記録媒
体走行方向に対してある一定の逃げ角をつけたこ
とである。
A feature of the present invention is that a certain distance is provided between the substrate on which the thin film magnetic head element is formed and the protection plate, and the shape of the opposing surface of the protection plate on the substrate side is set to have a certain clearance with respect to the recording medium running direction. It has a corner.
以下、本発明の実施例を図面を用いて説明す
る。第１図は本発明の第一の実施例である薄膜磁
気ヘツドの断面図で、第２図はその記録媒体摺動
面である。１は、ガラス、セラミツク、フエライ
ト等の非磁性基板、４は下部コア、６はギヤツプ
材、５は上部コア、８および９はコイル、７は保
護膜、３は記録媒体、２は保護板である。ここ
で、保護板２は、第２図に示す様にあらかじめ薄
膜磁気ヘツド素子へ対向する面に記録媒体走行方
向１０に対して逃げ角αをつけておく。その後、
薄膜ヘツド素子基板１と保護板２を、一定の間隔
を隔て後部を接着剤等により固着し、記録媒体摺
動面を整形して本発明の実施例が得られる。ここ
で、逃げ角αとしては10〜60度、薄膜磁気ヘツド
素子基板１と保護板２の間隔としては20〜100μ
ｍ、保護板材質としては、基板１と同一材料もし
くはガラス等の基板１より若干摩耗されやすい材
料が最適である。
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of a thin film magnetic head according to a first embodiment of the present invention, and FIG. 2 is a recording medium sliding surface thereof. 1 is a non-magnetic substrate such as glass, ceramic, ferrite, etc., 4 is a lower core, 6 is a gap material, 5 is an upper core, 8 and 9 are coils, 7 is a protective film, 3 is a recording medium, and 2 is a protective plate. be. Here, as shown in FIG. 2, the protective plate 2 is provided with a relief angle α with respect to the recording medium traveling direction 10 on the surface facing the thin film magnetic head element. after that,
An embodiment of the present invention is obtained by fixing the thin film head element substrate 1 and the protective plate 2 at a constant distance at the rear with an adhesive or the like, and shaping the recording medium sliding surface. Here, the relief angle α is 10 to 60 degrees, and the distance between the thin film magnetic head element substrate 1 and the protective plate 2 is 20 to 100 μ.
The best material for the protective plate is the same material as the substrate 1 or a material that is slightly more abrasive than the substrate 1, such as glass.
この様に構成された本発明の薄膜磁気ヘツド
は、従来に比較して、保護板２と薄膜磁気ヘツド
素子基板１間の接着剤が記録媒体摺動面に露出し
ないことにより、接着剤の材質等の摩耗性に依存
せず、複雑なプロセスを経る必要がない。また、
従来の様に、接着層の偏摩耗により保護板の段差
にゴミもしくは記録媒体の削れ粉等が目づまり、
記録媒体と薄膜磁気ヘツド間のスペーシングによ
る特性劣下が、薄膜磁気ヘツド基板１と保護板２
の間の間隔をあけ、かつ、ゴミや削れ粉等が逃げ
やすい様保護膜２に逃げ角αをつけたことにより
防止でき、良好な当接を得ることができる。 The thin film magnetic head of the present invention configured in this manner has a structure in which the adhesive between the protective plate 2 and the thin film magnetic head element substrate 1 is not exposed to the recording medium sliding surface, compared to the conventional ones. There is no need to go through complicated processes. Also,
As in the past, uneven wear of the adhesive layer causes dust or scraped particles of the recording medium to clog the step of the protective plate.
Deterioration of characteristics due to spacing between the recording medium and the thin film magnetic head is caused by the thin film magnetic head substrate 1 and the protective plate 2.
This can be prevented by providing a gap between the two and providing a relief angle α to the protective film 2 so that dust, shavings, etc. can easily escape, and good contact can be obtained.
第３図および第４図は、本発明の第２および第
３の本発明の実施例の薄膜磁気ヘツドの記録媒体
摺動面を示したものである。第３図、第４図に見
る様に、記録媒体走行方向１０に対して、保護板
２の薄膜磁気ヘツド素基板１に対向する面に、薄
膜磁気ヘツド素子の中心を頂点とする様に逃げ角
を設けても、本発明の効果に変わりがない。ま
た、保護板２の該対向面に、全体に曲率を設ける
形状とすることにより、より本発明の効果が発揮
できることは言うまでもない。 3 and 4 show recording medium sliding surfaces of thin film magnetic heads according to second and third embodiments of the present invention. As shown in FIGS. 3 and 4, an escapement is formed on the surface of the protection plate 2 facing the thin film magnetic head element substrate 1 with respect to the recording medium traveling direction 10, with the center of the thin film magnetic head element as the apex. Even if a corner is provided, the effect of the present invention remains unchanged. Furthermore, it goes without saying that the effects of the present invention can be more effectively achieved by providing the opposing surface of the protective plate 2 with a shape that provides a curvature over the entire surface.
本発明によれば、薄膜磁気ヘツド素子基板１と
保護板間に一定の間隔を設けるとともに、保護板
の該基板の対向面形状を、記録媒体走行方向に対
して一定の逃げ角度をつけたことにより、より簡
便なプロセスにより良好な記録媒体との当接が可
能となる。
According to the present invention, a certain distance is provided between the thin film magnetic head element substrate 1 and the protection plate, and the shape of the surface of the protection plate facing the substrate is set at a certain relief angle with respect to the recording medium running direction. This allows for better contact with the recording medium through a simpler process.
第１図は本発明の第１の実施例である薄膜磁気
ヘツドの断面図、第２図は記録媒体摺動面を示す
図、第３図および第４図は第２および第３の実施
例である薄膜磁気ヘツドの記録媒体摺動面を示す
図である。
１……非磁性基板、２……保護板、４，５……
磁気コア、７……保護膜。
FIG. 1 is a cross-sectional view of a thin film magnetic head according to a first embodiment of the present invention, FIG. 2 is a diagram showing a recording medium sliding surface, and FIGS. 3 and 4 are views of a second and third embodiment. FIG. 2 is a diagram showing a recording medium sliding surface of a thin film magnetic head. 1... Non-magnetic substrate, 2... Protective plate, 4, 5...
Magnetic core, 7...protective film.
Claims (1)
素子基板と、保護板とを一体化して成るヘツドに
おいて、上記薄膜磁気ヘツド素子基板と上記保護
板との間に、少なくともヘツド摺動面の記録媒体
走行方向に、一定の間隔のすき間を設けたことを
特徴とする薄膜磁気ヘツド。 ２ 上記保護板は、上記薄膜磁気ヘツド素子基板
に対する対向面側の形状が、記録媒体走行方向に
対して一定の逃げ角度をもつた構造である特許請
求の範囲第１項に記載の薄膜磁気ヘツド。[Scope of Claims] 1. In a head formed by integrating a thin film magnetic head element substrate formed by forming a thin film on a substrate and a protective plate, there is at least a portion between the thin film magnetic head element substrate and the protective plate. A thin film magnetic head characterized in that a gap is provided at a constant interval in the recording medium traveling direction on the sliding surface of the head. 2. The thin-film magnetic head according to claim 1, wherein the protective plate has a shape on the side facing the thin-film magnetic head element substrate with a constant relief angle with respect to the recording medium running direction. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11640284A JPS60261010A (en) | 1984-06-08 | 1984-06-08 | Thin film magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11640284A JPS60261010A (en) | 1984-06-08 | 1984-06-08 | Thin film magnetic head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60261010A JPS60261010A (en) | 1985-12-24 |
| JPH0243246B2 true JPH0243246B2 (en) | 1990-09-27 |
Family
ID=14686155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11640284A Granted JPS60261010A (en) | 1984-06-08 | 1984-06-08 | Thin film magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60261010A (en) |
-
1984
- 1984-06-08 JP JP11640284A patent/JPS60261010A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60261010A (en) | 1985-12-24 |
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