JP3274201B2 - Manufacturing method of magnetic head - Google Patents
Manufacturing method of magnetic headInfo
- Publication number
- JP3274201B2 JP3274201B2 JP34999792A JP34999792A JP3274201B2 JP 3274201 B2 JP3274201 B2 JP 3274201B2 JP 34999792 A JP34999792 A JP 34999792A JP 34999792 A JP34999792 A JP 34999792A JP 3274201 B2 JP3274201 B2 JP 3274201B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- manufacturing
- core halves
- magnetic head
- gap
- 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 - Fee Related
Links
Landscapes
- Magnetic Heads (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明はVTR等に使用される磁
気ヘッドの製造方法に関し、特に、磁気ギャップの突き
合わせを高精度に行なうことができる製造方法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a magnetic head used for a VTR or the like, and more particularly to a method of manufacturing a magnetic head in which a magnetic gap can be accurately butted.
【0002】[0002]
【従来の技術】近年、高品位VTR等の高記録密度の磁
気記録再生装置の開発が盛んに行なわれている。そこ
で、磁気ヘッドとしても、これらの高記録密度化に対応
するように狭トラック幅の磁気ヘッドの開発が望まれて
いる。狭トラック幅になれば製造時の高精度化が要求さ
れる。現在、磁気ギャップの突き合わせの際に、作業者
が顕微鏡等を利用して微調整をして位置合わせを行なっ
ているが、この方法ではサブミクロンの精度を実現する
のは極めて困難である。2. Description of the Related Art In recent years, magnetic recording / reproducing apparatuses having a high recording density, such as a high-quality VTR, have been actively developed. Therefore, it is desired to develop a magnetic head having a narrow track width so as to cope with such a high recording density. If the track width becomes narrow, high precision at the time of manufacturing is required. At present, when a magnetic gap is abutted, an operator performs fine adjustment using a microscope or the like to perform alignment, but it is extremely difficult to achieve submicron accuracy by this method.
【0003】[0003]
【発明が解決しようとする課題】前述した従来の磁気ヘ
ッドの磁気ギャップの突き合わせ方法では、コア半体が
容易にずれ、またねじれて、位置合わせ作業に作業者の
注意力と熟練を要し、突き合わせ精度の向上を困難にし
ていた。In the above-mentioned conventional method of abutting the magnetic gap of the magnetic head, the core half is easily displaced and twisted, requiring the attention and skill of the operator in the alignment work. This has made it difficult to improve the matching accuracy.
【0004】[0004]
【課題を解決するための手段】本発明の磁気ヘッドの製
造方法は、非磁性体層と磁性体層との積層体よりなる一
対のコア半体を突き合わすことにより磁気ギャップを形
成する磁気ヘッドの製造方法において、一対のコア半体
の突き合わせ面の一部に磁性体層と平行な少なくとも一
本のV字形の位置合わせ溝を形成し、この位置合わせ溝
にガラス丸棒を挟みながら、一対のコア半体を突き合わ
せて接着する。このとき、ガラス丸棒の径は突き合わせ
たコア半体の間にわずかな隙間ができる程度に設定す
る。 A method of manufacturing a magnetic head according to the present invention is directed to a magnetic head in which a magnetic gap is formed by abutting a pair of core halves comprising a laminate of a non-magnetic layer and a magnetic layer. In the manufacturing method, at least one V-shaped alignment groove parallel to the magnetic layer is formed in a part of the abutting surfaces of the pair of core halves, and a pair of glass round bars are sandwiched between the alignment grooves. Butt the core halves and glue them together. At this time, the diameter of the glass round bar
Set so that there is a small gap between the core halves
You.
【0005】[0005]
【作用】非磁性体層と磁性体層との積層体よりなる一対
のコア半体を突き合わす工程に先立って、突き合わせ面
の一部に磁性体層と平行なV字形の位置合わせ溝を形成
しておき、この位置合わせ溝に突き合わせたコア半体の
間にわずかな隙間ができる程度に設定した径を有するガ
ラス丸棒を挟みながら加圧加熱して接着すると、突き合
わせ時における磁性体層が形成する磁気ギャップのず
れ、および/または、ねじれが皆無となり、かつ、加圧
加熱により接合時には、ガラス丸棒は溶解して隙間がな
くなる。Prior to the step of butting a pair of core halves each composed of a laminate of a nonmagnetic layer and a magnetic layer, a V-shaped alignment groove parallel to the magnetic layer is formed in a part of the mating surface. In the meantime, the core half
When pressure and heating are applied while sandwiching a glass round bar having a diameter set to such an extent that a slight gap is formed therebetween, the gap of the magnetic gap formed by the magnetic layer at the time of abutting, and / or In addition, there is no twist, and at the time of joining by pressurizing and heating, the glass round bar melts and no gap is left.
【0006】[0006]
【実施例】本発明の磁気ヘッドの製造方法を図面に基づ
いて工程順に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method for manufacturing a magnetic head according to the present invention will be described in the order of steps with reference to the drawings.
【0007】(1)まず、スパッタリングにより非磁性基
板1の片面に金属磁性体層2を形成する。(1) First, a metal magnetic layer 2 is formed on one surface of a non-magnetic substrate 1 by sputtering.
【0008】(2)図1の斜視図に示すように、金属磁性
体層2が形成された非磁性基板1を、金属磁性体層2を
非磁性基板1で挟み込むように重ね合わせ、最上部およ
び最下部にも非磁性基板1を重ねたのち、 (3)各基板間を結晶化ガラス等の接合ガラスで接着する
ことにより積層体を形成する。(2) As shown in the perspective view of FIG. 1, the non-magnetic substrate 1 on which the metal magnetic layer 2 is formed is overlapped so that the metal magnetic layer 2 is sandwiched between the non-magnetic substrates 1. After the non-magnetic substrate 1 is also stacked on the lowermost portion, (3) a laminate is formed by bonding the substrates with a bonding glass such as a crystallized glass.
【0009】(4)この積層体を線a、aに沿って一定の
切断幅で切断して、図2の斜視図に示すように、一対の
コア半体4a、4bを作る。(4) This laminate is cut along the lines a, a at a constant cutting width to form a pair of core halves 4a, 4b as shown in the perspective view of FIG.
【0010】(5)一方のコア半体4aのギャップ面となる
突き合わせ面に、金属磁性体層2と直交する巻線窓溝5
を形成する。(5) A winding window groove 5 orthogonal to the metal magnetic layer 2 is provided on the abutting surface serving as a gap surface of one core half 4a.
To form
【0011】(6)両コア半体4a、4bの突き合わせ面にそ
れぞれ金属磁性体層2と平行なV字形の位置合わせ溝6
を形成し、 (7)両コア半体4a、4bの突き合わせ面を平滑に研磨した
のち、スパッタリングにより突き合わせ面にSiO2や高
融点ガラス等のギャップ材を形成し、 (8)図2および図3に示すように、位置合わせ溝6にガ
ラスの丸棒7を挟みながら、コア半体4a、4bを突合せ、(6) A V-shaped alignment groove 6 parallel to the metal magnetic layer 2 is formed on the abutting surfaces of the two core halves 4a and 4b.
(7) After the butt surfaces of both core halves 4a and 4b are polished smoothly, a gap material such as SiO 2 or high melting point glass is formed on the butt surfaces by sputtering. (8) FIGS. As shown in FIG. 3, the core halves 4a and 4b are butted while holding the glass round bar 7 in the alignment groove 6,
【0012】(9)この状態で加圧加熱処理を施して両コ
ア半体4a、4bを接着する。このとき、ガラス丸棒7の径
は、突き合わせた両コア半体4a、4bの間にわずかに隙間
ができる程度に設定し、このガラス丸棒7によって、両
コア半体4a、4bの相対的な位置を一義的に設定する。す
なわち、コア半体4a、4bは、加圧加熱処理中に図3に示
す状態を保ち、コア半体4a、4bは、左右にずれることは
ない。(9) In this state, the core halves 4a and 4b are bonded by applying pressure and heat treatment. At this time, the diameter of the glass round bar 7 is set such that a slight gap is formed between the butted core half bodies 4a and 4b. Position is set uniquely. That is, the core halves 4a and 4b maintain the state shown in FIG. 3 during the pressure and heat treatment, and the core halves 4a and 4b do not shift left and right.
【0013】(10)接着されたコア半体4a、4bを線b、
bに沿って一定の切断幅で切断して、図4の斜視図に示
すギャップド・バーを作製し、 (11)さらに、このギャップド・バーを線c、cに沿っ
て所定の切断幅で切断し、図5に示すギャップ9を有す
るヘッド・チップを得る。(10) The bonded core halves 4a and 4b are
(b) is cut at a predetermined cutting width along the line (b) to produce a gapped bar shown in the perspective view of FIG. Then, a head chip having the gap 9 shown in FIG. 5 is obtained.
【0014】以上の工程を経て作製した磁気ヘッドは、
突き合わせた金属磁性体層2にずれがなく高精度のトラ
ック幅が得られる。The magnetic head manufactured through the above steps is
A highly accurate track width can be obtained without displacement of the butted metal magnetic layer 2.
【0015】なお、本発明は、以上で説明した実施例に
限らず、他のフェライトヘッドやMIGヘッド等種々の
磁気ヘッドの製造にも適用することができる。The present invention is not limited to the embodiments described above, but can be applied to the manufacture of various magnetic heads such as other ferrite heads and MIG heads.
【0016】[0016]
【発明の効果】本発明の製造方法によれば、突き合わせ
た金属磁性体層のずれ、すなわち、トラックずれがない
高精度の狭トラック磁気ヘッドを容易に得ることができ
る。According to the manufacturing method of the present invention, it is possible to easily obtain a high-precision narrow-track magnetic head having no displacement of the butted metal magnetic layers, that is, no track displacement.
【図1】本発明の磁気ヘッドの製造方法における積層体
を形成する工程の斜視図、FIG. 1 is a perspective view of a step of forming a laminate in a method of manufacturing a magnetic head according to the present invention;
【図2】コア半体を形成する工程の斜視図、FIG. 2 is a perspective view of a step of forming a core half,
【図3】コア半体を突き合わせた状態を示す側面図、FIG. 3 is a side view showing a state in which core halves are butted;
【図4】本発明の磁気ヘッドの製造方法で作ったギャッ
プドバーの斜視図、FIG. 4 is a perspective view of a gapped bar manufactured by the method of manufacturing a magnetic head according to the present invention;
【図5】本発明の磁気ヘッドの製造方法で作ったヘッド
チップの斜視図である。FIG. 5 is a perspective view of a head chip manufactured by the method of manufacturing a magnetic head according to the present invention.
1 非磁性基板 2 金属磁性層 4a、4b コア半体 5 巻線窓溝 6 位置合わせ溝 7 ガラス丸棒 9 ギャップ DESCRIPTION OF SYMBOLS 1 Non-magnetic substrate 2 Metal magnetic layer 4a, 4b Core half 5 Winding window groove 6 Alignment groove 7 Glass round bar 9 Gap
Claims (1)
る一対のコア半体を突き合わすことにより磁気ギャップ
を形成する磁気ヘッドの製造方法において、前記一対の
コア半体の突き合わせ面の一部に、前記磁性体層と平行
な少なくとも一本の略V字形の位置合わせ溝を形成し、
前記一対のコア半体を突き合わせて、前記位置合わせ溝
にガラス丸棒を配置したときに、前記前記一対のコア半
体の間にわずかに隙間ができる程度に設定された径を有
する前記ガラス丸棒を挟みながら、前記一対のコア半体
を突き合わせて接着することを特徴とする磁気ヘッドの
製造方法。1. A method of manufacturing a magnetic head in which a magnetic gap is formed by abutting a pair of core halves each comprising a laminated body of a non-magnetic layer and a magnetic layer, wherein abutting surfaces of the pair of core halves are provided. Forming at least one substantially V-shaped alignment groove parallel to the magnetic layer,
Abutting the pair of core halves to form the alignment groove;
When a glass round bar is placed on the
The diameter is set so that there is a slight gap between the bodies
A method for manufacturing a magnetic head, wherein the pair of core halves are abutted and adhered while sandwiching the glass round bar.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP34999792A JP3274201B2 (en) | 1992-12-03 | 1992-12-03 | Manufacturing method of magnetic head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP34999792A JP3274201B2 (en) | 1992-12-03 | 1992-12-03 | Manufacturing method of magnetic head |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH06176309A JPH06176309A (en) | 1994-06-24 |
JP3274201B2 true JP3274201B2 (en) | 2002-04-15 |
Family
ID=18407537
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP34999792A Expired - Fee Related JP3274201B2 (en) | 1992-12-03 | 1992-12-03 | Manufacturing method of magnetic head |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3274201B2 (en) |
-
1992
- 1992-12-03 JP JP34999792A patent/JP3274201B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH06176309A (en) | 1994-06-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |