JPS58131428U - thin film magnetic head - Google Patents
thin film magnetic headInfo
- Publication number
- JPS58131428U JPS58131428U JP2860982U JP2860982U JPS58131428U JP S58131428 U JPS58131428 U JP S58131428U JP 2860982 U JP2860982 U JP 2860982U JP 2860982 U JP2860982 U JP 2860982U JP S58131428 U JPS58131428 U JP S58131428U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- thin film
- layer
- 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
Landscapes
- Magnetic Heads (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図ａ、 ｂは従来の薄膜磁気ヘッドの構造を示す
断面図ならびに平面図、第２図ａ、 ｂは、磁性層の
異方性磁界Ｈｋと磁区の関係を示す平面図、第３図ａ、
ｂは従来の薄膜磁気ヘッドの構造の他の一例を示す
断面図ならびば平面図、第４図ａ。
ｂは本考案による薄膜磁気ヘッドの構造の一例を示す断
面図ならびに平面図、および第５図ａ、 ｂは本考案
による薄膜磁気ヘッドの構造の他の一例を示す断面図な
らびに平面図であり、１・・・基板、２・・・下部磁性
層、３・・・コイル、４・・・上部磁性層、５・・・絶
縁層、６・・・保護層、７・・・記録媒体、８・・・ギ
ャップ、９・・・トラック幅、１０・・・上下磁性層２
および４の接続部、１１・・・磁束、１２・・・磁壁、
１３・・・磁区、１４・・・上下磁性層２および４の磁
化容易軸、１５・・・上下磁性層２および４の磁化困難
軸、１６・・・硬質磁性材料によるバイアス層、１７・
・・バイアス磁界である。Figures 1a and b are cross-sectional views and plan views showing the structure of a conventional thin-film magnetic head, Figures 2a and b are plan views showing the relationship between the anisotropic magnetic field Hk of the magnetic layer and magnetic domains, and Figure 3. a,
4b is a sectional view and a plan view showing another example of the structure of a conventional thin film magnetic head; FIG. 5b is a sectional view and a plan view showing an example of the structure of the thin film magnetic head according to the present invention, and FIGS. 5a and 5b are a sectional view and a plan view showing another example of the structure of the thin film magnetic head according to the invention, DESCRIPTION OF SYMBOLS 1... Substrate, 2... Lower magnetic layer, 3... Coil, 4... Upper magnetic layer, 5... Insulating layer, 6... Protective layer, 7... Recording medium, 8 ... Gap, 9... Track width, 10... Upper and lower magnetic layers 2
and 4 connection parts, 11...magnetic flux, 12... domain wall,
13... Magnetic domain, 14... Easy magnetization axis of the upper and lower magnetic layers 2 and 4, 15... Hard magnetization axis of the upper and lower magnetic layers 2 and 4, 16... Bias layer made of hard magnetic material, 17.
...It is a bias magnetic field.
Claims (2)
た導体層からなる薄膜磁気ヘッドにおいて、前記下部磁
性層の下方と上方の少なくとも一方と前記上部磁性層の
下方と上方の少なくとも一方に隣接して硬質磁性材料よ
りなるバイアス層を配置したことを特徴とする薄膜磁気
ヘッド。(1) In a thin film magnetic head comprising a lower magnetic layer, an upper magnetic layer, and a conductor layer sandwiched between the two magnetic layers, at least one of the lower and upper parts of the lower magnetic layer and at least the lower and upper parts of the upper magnetic layer are provided. A thin film magnetic head characterized in that a bias layer made of a hard magnetic material is disposed adjacent to one side of the head.
少なくとも一層の硬質磁性材料よりなるバイアス層を挾
み込んだ多層構造であることを特徴とする実用新案登録
請求の範囲第一項に記載の薄膜磁気ヘッド。(2) A utility model according to claim 1, characterized in that at least one of the lower magnetic layer and the upper magnetic layer has a multilayer structure sandwiching at least one bias layer made of a hard magnetic material. Thin film magnetic head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2860982U JPS58131428U (en) | 1982-03-01 | 1982-03-01 | thin film magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2860982U JPS58131428U (en) | 1982-03-01 | 1982-03-01 | thin film magnetic head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58131428U true JPS58131428U (en) | 1983-09-05 |
Family
ID=30040449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2860982U Pending JPS58131428U (en) | 1982-03-01 | 1982-03-01 | thin film magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58131428U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5539536B2 (en) * | 1977-08-05 | 1980-10-13 |
-
1982
- 1982-03-01 JP JP2860982U patent/JPS58131428U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5539536B2 (en) * | 1977-08-05 | 1980-10-13 |
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