JPS60124015A - Magnetic head - Google Patents
Magnetic headInfo
- Publication number
- JPS60124015A JPS60124015A JP23207883A JP23207883A JPS60124015A JP S60124015 A JPS60124015 A JP S60124015A JP 23207883 A JP23207883 A JP 23207883A JP 23207883 A JP23207883 A JP 23207883A JP S60124015 A JPS60124015 A JP S60124015A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- thin film
- magnetic head
- magnetic thin
- recording medium
- 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
- G11B5/3113—Details for improving the magnetic domain structure or avoiding the formation or displacement of undesirable magnetic domains
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Abstract
Description
【発明の詳細な説明】
〔技術分野〕
本発明は、高密度磁気記録技術分野のなう・の磁気ヘッ
ドの磁性薄膜の構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to the structure of a magnetic thin film of a magnetic head in the field of high-density magnetic recording technology.
第１図は、磁性薄膜を用い穴上な磁気ヘッドと磁気記録
媒体の断面状態図である。FIG. 1 is a sectional view of a magnetic head and a magnetic recording medium using a magnetic thin film.
第１図において、１けセラミック基板、２け磁性薄膜、
１のセラミック基板Ｅに２の磁性薄膜が形成されている
部品が磁気ヘッドである。３が磁気記録媒体である。２
の磁性薄膜で、６の磁気記録媒体面に記録を行なうもの
である。In FIG. 1, one ceramic substrate, two magnetic thin films,
A component in which two magnetic thin films are formed on one ceramic substrate E is a magnetic head. 3 is a magnetic recording medium. 2
This magnetic thin film is used to perform recording on the magnetic recording medium surface (6).
第２図は、第１図の磁気ヘッド構造のなかで、従来の磁
性薄膜の形成さねた状態を示すものである。１のセラミ
ック基板上に、２の磁性薄膜が、スパッター等により全
面形成されｆｃＳ造である。FIG. 2 shows a state in which a conventional magnetic thin film is formed in the magnetic head structure of FIG. 1. A magnetic thin film 2 is formed on the entire surface of a ceramic substrate 1 by sputtering or the like, resulting in an fcS structure.
磁気ヘッドの磁性薄膜には、磁気異方性という性質があ
る。磁気異方性は、磁性薄膜の形状によって異なる。つ
ま抄、磁性薄膜の形状で長手方向には、磁気異方性容易
軸（イージー 以下イージーという）が向き、ＩＩＪ記
イージーと直角な方向には、磁気異方性困難軸（ハード
以下ハードという）が向く性質がある。The magnetic thin film of a magnetic head has a property called magnetic anisotropy. Magnetic anisotropy varies depending on the shape of the magnetic thin film. In the shape of a magnetic thin film, the easy axis of magnetic anisotropy (hereinafter referred to as easy) is oriented in the longitudinal direction, and the difficult axis of magnetic anisotropy (hereinafter referred to as hard) is oriented in the direction perpendicular to the easy direction in IIJ. There are characteristics that are suitable for
磁性薄膜を用い六磁気ヘッドの要求される特性としては
、僅磁力の低いことが必要である。A required characteristic of a magnetic head using a magnetic thin film is a low marginal magnetic force.
第２図の様な構造の磁性薄膜を用いた磁気ヘッドでけ、
磁気記録媒体面に対して、垂直にイージーが向き、保磁
力が高くなってしまい、磁気へ・・ドの出力、再□生特
性が低いという問題点があった、つまり、前記構造での
記録密度特性は、第４図の１のレベルであり六。A magnetic head using a magnetic thin film with a structure as shown in Figure 2,
There was a problem that the easy was oriented perpendicularly to the surface of the magnetic recording medium and the coercive force was high, resulting in poor magnetic output and reproduction characteristics.In other words, recording with the above structure The density characteristic is level 1 in Figure 4, which is level 6.
本発明は、この様な問題点を解決するもので、その目的
とするところは、磁気ヘッドの磁性薄膜のパターン形状
に、スリット等の穴を設けることによってハード方向を
容易に磁気記録媒体面に向けることができ、磁性薄膜の
保磁力を低下させ、出力・再生特性の向とし大磁気ヘッ
ドを提供することにある。The present invention is intended to solve these problems, and its purpose is to easily align the hard direction to the magnetic recording medium surface by providing holes such as slits in the pattern of the magnetic thin film of the magnetic head. The object of the present invention is to provide a large magnetic head that can be adjusted to improve the output and reproduction characteristics by reducing the coercive force of the magnetic thin film.
磁性体に薄膜を用いる磁気へ・ンドにおいて、前記、磁
性薄膜にスリット等の穴を持たせた構造にし大事を特徴
とする磁気ヘッド。In a magnetic field using a thin film as a magnetic material, a magnetic head is characterized in that it has a structure in which the magnetic thin film has holes such as slits.
前記スリットは、磁性薄膜の磁気異方性のノ・−ド方向
が、磁気記録媒体面に対して、垂直に向く様にした事を
特徴とする磁気ヘッドである。The slit is a magnetic head characterized in that the node direction of the magnetic anisotropy of the magnetic thin film is oriented perpendicularly to the surface of the magnetic recording medium.
以下、本発明について実施例に基づき詳細に説明する。 Hereinafter, the present invention will be described in detail based on examples.
第３図は、本発明による斜視図である。１のセラミック
基板上に、４のスリット付きの磁性薄膜が、スパッター
等により形成されている。FIG. 3 is a perspective view according to the present invention. A magnetic thin film with 4 slits is formed on a ceramic substrate 1 by sputtering or the like.
磁性薄膜の形状依存の性質から、磁性薄膜のハード方向
が、このスリットによって、容易に磁気記録媒体面へ向
くことができｆｃ。Due to the shape-dependent nature of the magnetic thin film, the hard direction of the magnetic thin film can be easily directed toward the magnetic recording medium surface through this slit fc.
そこで、第２図および第３図の構造で、記録密度特性を
調査・比較１−ｆｃ結果、第４図の様になり記録帯間を
上げる程出力が大きく、記録密度が低くても１０俤以り
の出方向トとなった。Therefore, with the structures shown in Figures 2 and 3, the recording density characteristics were investigated and compared 1-fc, and the results are as shown in Figure 4.The higher the recording band spacing, the higher the output. The next step was to go out.
第３図のスリット形状は、長方形であるが、この他に長
円・だ円−円・四角形・三角形等の形状を用いても十分
対応可能であった。Although the slit shape in FIG. 3 is a rectangle, other shapes such as an ellipse, an ellipse-circle, a square, a triangle, etc. can also be used.
以北、述べた様に本発明によれば、磁性体に薄膜を用い
た磁気ヘッドにおいて、磁性薄膜にスリット等の穴を設
けることによって、磁気ヘッドの磁性薄膜の磁気異方性
め・・−ド方向が、容易に磁気記録媒体面へ垂直に自負
、磁性薄膜の保磁力を下げることが可能となり、磁気特
性の記録・再生特性が向ｈ Ｌ度。As mentioned above, according to the present invention, in a magnetic head using a thin film as a magnetic material, by providing holes such as slits in the magnetic thin film, the magnetic anisotropy of the magnetic thin film of the magnetic head can be improved. The direction of the magnetic recording medium is easily perpendicular to the surface of the magnetic recording medium, making it possible to lower the coercive force of the magnetic thin film, and improving the recording and reproducing characteristics of the magnetic properties.
本発明による磁気ヘッド構造は、磁性薄膜を用いる全て
の磁気ヘッドに応用可能である（フロッピーディスクド
ライブ、ハードディスドライブ。The magnetic head structure according to the present invention is applicable to all magnetic heads that use magnetic thin films (floppy disk drives, hard disk drives, etc.).
ＶＴＲ用磁気ヘッド等）。magnetic heads for VTRs, etc.).
第１図は、磁気ヘッドと磁気記録媒体の断面状態図であ
る。
ｆａ２図は、従来の構造による磁気ヘッドの磁性薄膜形
成状態図である。
第３図は、本発明の構造による磁気ヘッドの磁性薄膜形
成状態図である。
第４図は、第２図および第３図の磁気ヘッド構造におけ
る記録密度特性である。
１・・・・・・セフミック基板
２・・・・・・磁性薄膜（従来）
＝ ５−
３・・・・・・磁り記録媒体
４・・・・・・磁性薄膜ｃ本発明による）以 上
出願人 株式会社 詐訪精工舎
イ（埋入 弁理士 最 ト 務
６−
才Ｉ図
才２図 矛ろ明
才４図
５乙を改）ト羨FIG. 1 is a cross-sectional diagram of a magnetic head and a magnetic recording medium. FIG. fa2 is a diagram showing the state of forming a magnetic thin film in a magnetic head with a conventional structure. FIG. 3 is a diagram illustrating the formation of a magnetic thin film in a magnetic head according to the structure of the present invention. FIG. 4 shows recording density characteristics in the magnetic head structures of FIGS. 2 and 3. FIG. 1... Cefmic substrate 2... Magnetic thin film (conventional) = 5- 3... Magnetic recording medium 4... Magnetic thin film c according to the present invention) Applicant: Shoho Seikosha Co., Ltd. (embedded patent attorney's office)
Claims (2)
磁性薄膜にスリット等の穴を持にせた構造にした事を特
徴とする磁気ヘッド。(1) In a magnetic head using a thin film as a magnetic material, the above-mentioned
A magnetic head characterized by a structure in which a magnetic thin film has holes such as slits.
ド方向が、磁気記録媒体面に対して、垂直に向く様にし
た事を特徴とする特許請求の範囲第１項記載の磁気ヘッ
ド。(2) The magnetic head according to claim 1, wherein the slit is configured such that the hard direction of the magnetic anisotropy of the magnetic thin film is perpendicular to the surface of the magnetic recording medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23207883A JPS60124015A (en) | 1983-12-08 | 1983-12-08 | Magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23207883A JPS60124015A (en) | 1983-12-08 | 1983-12-08 | Magnetic head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60124015A true JPS60124015A (en) | 1985-07-02 |
Family
ID=16933645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23207883A Pending JPS60124015A (en) | 1983-12-08 | 1983-12-08 | Magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60124015A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989004553A1 (en) * | 1987-11-11 | 1989-05-18 | Lsi Logic Europe Plc | Semiconductor devices with programmable passive-component layer and process for producing the same |
-
1983
- 1983-12-08 JP JP23207883A patent/JPS60124015A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989004553A1 (en) * | 1987-11-11 | 1989-05-18 | Lsi Logic Europe Plc | Semiconductor devices with programmable passive-component layer and process for producing the same |
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