JPH06338024A - Magnetic head - Google Patents

Magnetic head

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Publication number
JPH06338024A
JPH06338024A JP14829493A JP14829493A JPH06338024A JP H06338024 A JPH06338024 A JP H06338024A JP 14829493 A JP14829493 A JP 14829493A JP 14829493 A JP14829493 A JP 14829493A JP H06338024 A JPH06338024 A JP H06338024A
Authority
JP
Japan
Prior art keywords
films
magnetic
film
gap
reaction
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
Application number
JP14829493A
Other languages
Japanese (ja)
Inventor
Eikichi Ariga
英吉 有賀
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nidec Sankyo Corp
Original Assignee
Nidec Sankyo Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nidec Sankyo Corp filed Critical Nidec Sankyo Corp
Priority to JP14829493A priority Critical patent/JPH06338024A/en
Publication of JPH06338024A publication Critical patent/JPH06338024A/en
Pending legal-status Critical Current

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  • Magnetic Heads (AREA)

Abstract

PURPOSE:To prevent the deterioration of the soft magnetic characteristics of metallic magnetic films by interposing a reaction preventing film of chromium oxide between reinforcing glass and each of the metallic magnetic films. CONSTITUTION:A flat plate-shaped ferrite substrate 1 and a boat-shaped ferrite substrate 1 with a formed winding groove 4 are prepd. and a 1st reaction preventing films 10 of silicon oxide are formed on the faces 2 of the substrates 1, 1 opposite to a gap and other faces to be butted and in the groove 4. Alloy films of 'Sendus(R)' as metallic magnetic films 5 are then formed on the films 10 and chromium oxide films as 2nd reaction preventing films 11 are formed on the films 5 to obtain a pair of magnetic core halves A, B. A film of a gap material 7 is formed on the film 11 of one or both of the halves A, B and the halves A, B are bonded. At this time, molten reinforcing glass 9 is filled and fixed in the sloped part 3 between the halves A, B. Chromium oxide does not diffuse into the films 5 while filling the hot molten glass 9.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、少なくとも一方が酸化
物磁性材料の基板と金属磁性膜により構成される一対の
磁気コア半体をギャップ材を介在させて突き合わせると
共にギャップ近傍の斜面部に補強ガラスを充填してなる
所謂メタル・イン・ギャップ(MIG)型複合磁気ヘッ
ドに関する。更に詳述すると、本発明は、金属磁性膜と
補強ガラスとの反応を防止する膜の改良に関する。
BACKGROUND OF THE INVENTION The present invention relates to a pair of magnetic core halves, at least one of which is composed of a substrate of an oxide magnetic material and a metal magnetic film, butted together with a gap material interposed, and at the slope portion near the gap. The present invention relates to a so-called metal-in-gap (MIG) type composite magnetic head filled with reinforcing glass. More specifically, the present invention relates to an improvement in a film that prevents a reaction between a metallic magnetic film and a reinforcing glass.

【従来の技術】[Prior art]

【0002】MIGヘッドは、コアの大部分をフェライ
トなどの酸化物磁性材料の基板で構成し、ポールピース
部分にのみセンダスト等の高磁束密度材料の薄膜を使用
したものである。このMIGヘッドは、例えば特開平1
−100714号に示すように、酸化物磁性材料の基板
と金属磁性膜により構成される一対の磁気コア半体をギ
ャップ材を介在させて突き合わせ、低融点補強ガラスで
接合するようにしている。このため、ガラスと金属磁性
膜との間などでの反応が問題となる。
In the MIG head, most of the core is composed of a substrate of an oxide magnetic material such as ferrite, and a thin film of a high magnetic flux density material such as sendust is used only in the pole piece portion. This MIG head is disclosed in
As shown in No. 100714, a pair of magnetic core halves composed of a substrate of an oxide magnetic material and a metal magnetic film are butted against each other with a gap material interposed, and joined with a low melting point reinforced glass. Therefore, a reaction between the glass and the metal magnetic film becomes a problem.

【0003】そこで、図4および図5に示すようなMI
Gヘッドの構造の採用が考えられている。このMIGヘ
ッドは、フェライト等の酸化物磁性材料からなる一対の
基板101,101と、この一対の基板101,101
の少なくとも一方のギャップ対向面(本明細書では磁気
ギャップに対して平行な突き合わせ接合面のうち特にギ
ャップを構成する部分をいう)102に連続する斜面部
103を有する巻線溝104と、一対の基板101,1
01が互いに向かい合う面に形成したセンダスト等の金
属磁性材料からなる金属磁性膜105,105と、一対
の基板101,101のギャップ対向面102,102
を接着してギャップ106を形成する二酸化ケイ素(S
iO2 )等の非磁性材料からなるギャップ材107と、
一対の基板101,101が接着された状態で巻線溝1
04から形成された巻線窓108の斜面部103の箇所
に充填された補強ガラス109と、基板101,101
と金属磁性膜105,105との境界に形成された二酸
化ケイ素(SiO2 )等の酸化物からなる第1の反応防
止膜110,110と、金属磁性膜105,105と補
強ガラス109との境界に形成されたクロム(Cr)か
らなる第2の反応防止膜111,111とから構成され
ている。
Therefore, MI as shown in FIG. 4 and FIG.
The adoption of a G head structure is considered. This MIG head includes a pair of substrates 101, 101 made of an oxide magnetic material such as ferrite, and a pair of substrates 101, 101.
Of at least one gap facing surface (in the present specification, a butt joint surface parallel to the magnetic gap, which particularly refers to a portion forming a gap) 102, a winding groove 104 having a slant surface portion 103, and a pair of winding grooves 104. Substrate 101, 1
01 is formed on the surfaces facing each other, the metal magnetic films 105, 105 made of a metal magnetic material such as sendust, and the gap facing surfaces 102, 102 of the pair of substrates 101, 101.
The silicon dioxide (S
a gap member 107 made of a non-magnetic material such as iO 2 ),
The winding groove 1 with the pair of substrates 101, 101 bonded together
04, the reinforcing glass 109 filled in the portion of the slope 103 of the winding window 108 and the substrates 101, 101.
And the metal magnetic films 105, 105 formed on the boundaries between the first reaction preventing films 110, 110 made of an oxide such as silicon dioxide (SiO 2 ) and the boundaries between the metal magnetic films 105, 105 and the reinforcing glass 109. The second reaction prevention films 111 and 111 made of chromium (Cr) are formed on the substrate.

【0004】ここで、第1の反応防止膜110,110
は、二酸化ケイ素(SiO2 )等の酸化物からなり、フ
ェライト等の酸化物磁性材料から成る基板101,10
1とセンダスト等の金属磁性膜105,105とが反応
することを防止している。また、第2の反応防止膜11
1,111は、クロム(Cr)からなり、センダスト等
の金属磁性膜105,105と補強ガラス109とが反
応して、金属磁性膜105,105中にガラス成分が拡
散するのを防止している。
Here, the first reaction prevention films 110, 110
Is made of an oxide such as silicon dioxide (SiO 2 ), and is made of an oxide magnetic material such as ferrite.
1 and the metal magnetic films 105, 105 such as sendust are prevented from reacting with each other. In addition, the second reaction prevention film 11
1, 111 are made of chromium (Cr) and prevent the metallic magnetic films 105, 105 such as sendust and the reinforcing glass 109 from reacting with each other to diffuse the glass component into the metallic magnetic films 105, 105. .

【0005】このような構造のMIGヘッドは、基板1
01,101の突き合わせ面に反応防止膜110,11
0、金属磁性膜105,105、反応防止膜111,1
11及びギャップ材107の各膜がスパッタリング等の
薄膜形成法によって順次積層された一対の磁気コア半体
を突き合わせ、ギャップ近傍の斜面部103に溶融した
補強ガラス109を充填して固めることによって得られ
る。このMIGヘッドは、通常大きなブロックに形成さ
れ、スライスによって所望の大きさのヘッドコアチップ
として切り出され、ヘッドホルダやスライダなどに溶融
ガラスで固着されて使用されている。
The MIG head having such a structure is composed of the substrate 1
The reaction preventing films 110, 11 are provided on the abutting surfaces of 01, 101.
0, metal magnetic films 105, 105, reaction preventing films 111, 1
11 and the gap material 107 are obtained by abutting a pair of magnetic core halves, which are sequentially laminated by a thin film forming method such as sputtering, and filling the sloped portion 103 near the gap with the molten reinforcing glass 109 and hardening it. . This MIG head is usually formed in a large block, cut out as a head core chip of a desired size by slicing, and is fixed to a head holder, slider or the like with molten glass and used.

【0006】[0006]

【発明が解決しようとする課題】ところで、例えばハー
ドディスクドライブ(HDD)のようにヘッドコアチッ
プをスライダーにガラスボンデイングする場合、ボンデ
イング用の溶融ガラスの温度によって先に充填固化した
補強ガラス109が溶融してしまうことのないように、
補強ガラス109としてはボンディング用のガラスに比
較して融点の高いものを用いる必要がある。例えば補強
ガラス109の融点を500゜C後半以上とし、ボンデ
イング用のガラスをそれ以下の温度にする。
By the way, when a head core chip is glass-bonded to a slider as in a hard disk drive (HDD), for example, the reinforcing glass 109 which has been previously filled and solidified is melted by the temperature of the molten glass for bonding. So that you do n’t lose
As the reinforcing glass 109, it is necessary to use one having a higher melting point than the glass for bonding. For example, the melting point of the reinforcing glass 109 is set to the upper half of 500 ° C. or higher, and the temperature of the bonding glass is set to the lower temperature.

【0007】しかしながら、500°C台の前半の温度
下で溶融するガラスを補強ガラス109として用いる場
合には、第2の反応防止膜111,111としてクロム
を用いても特に問題を生じないが、500°C台の後半
のより高い温度下でしか溶融しないガラスを補強ガラス
109として用いると、より高い温度に上げるため第2
の反応防止膜111,111のクロムが金属磁性膜10
5,105の中に拡散し、金属磁性膜105,105と
補強ガラス109との反応を防止するという第2の反応
防止膜111,111としての機能を果たせなくなる問
題が起きるばかりか、またクロムが金属磁性膜105,
105に拡散することによって、金属磁性膜105,1
05の持つ軟磁気特性が劣化してしまうという問題も起
きる。
However, when glass that melts at a temperature in the first half of the 500 ° C. range is used as the reinforcing glass 109, even if chromium is used as the second reaction preventing films 111 and 111, no particular problem occurs. If glass that melts only at a higher temperature in the latter half of the 500 ° C. range is used as the reinforcing glass 109, the temperature is raised to a higher temperature.
The reaction preventive films 111, 111 of the chromium film are made of chromium.
5 and 105, the problem that the function as the second reaction preventing films 111 and 111 of preventing the reaction between the metal magnetic films 105 and 105 and the reinforcing glass 109 cannot be achieved, and that chromium also occurs. Metal magnetic film 105,
By diffusing into 105, the metal magnetic films 105, 1
There is also a problem that the soft magnetic characteristics of 05 are deteriorated.

【0008】本発明は、500°C台の後半以上の温度
で溶融するガラスを補強ガラスとして充填しても、反応
防止膜の素材が金属磁性膜の中に拡散することがなく、
補強ガラスと金属磁性膜との間の反応を確実に防止で
き、また金属磁性膜の軟磁気特性を劣化させることのな
い構造の磁気ヘッドを提供することを目的とする。
According to the present invention, the material of the reaction preventive film does not diffuse into the metal magnetic film even when the glass that melts at a temperature in the latter half of the 500 ° C. range or higher is filled as the reinforcing glass.
An object of the present invention is to provide a magnetic head having a structure capable of surely preventing a reaction between the reinforcing glass and the metal magnetic film and not deteriorating the soft magnetic characteristics of the metal magnetic film.

【0009】[0009]

【課題を解決するための手段】かかる目的を達成するた
め、本発明は、少なくとも一方の磁気コア半体が酸化物
磁性材料の基板と金属磁性膜により構成されかつギャッ
プ対向面に連続する斜面部を有する一対の磁気コア半体
をギャップ材を介在させて突き合わせると共にこれら一
対の磁気コア半体間の斜面部に補給ガラスを充填してな
る磁気ヘッドにおいて、補強ガラスと金属磁性膜との間
に酸化クロムより成る反応防止膜を設けている。
In order to achieve the above object, the present invention provides an inclined surface portion in which at least one magnetic core half body is composed of a substrate of an oxide magnetic material and a metal magnetic film and which is continuous with the gap facing surface. A pair of magnetic core halves are abutted with a gap material interposed and a sloped portion between the pair of magnetic core halves is filled with supplemental glass. Is provided with a reaction preventive film made of chromium oxide.

【0010】また、本発明は、反応防止膜を形成する酸
化クロムがギャップ材を兼用している。
Further, in the present invention, the chromium oxide forming the reaction preventive film also serves as the gap material.

【0011】[0011]

【作用】したがって、500°C台の後半以上で溶融し
ている補強ガラスを充填しても、反応防止膜の素材であ
る酸化クロムは金属磁性膜に拡散することがない。
Therefore, even if the reinforcing glass melted in the latter half of the range of 500 ° C. or higher is filled, the chromium oxide which is the material of the reaction preventive film does not diffuse into the metal magnetic film.

【0012】また、反応防止膜を形成する酸化クロムが
ギャップ材を兼用している場合には、その酸化クロムが
磁気ヘッドのギャップを形成する。
When the chromium oxide forming the reaction preventive film also serves as the gap material, the chromium oxide forms the gap of the magnetic head.

【0013】[0013]

【実施例】以下、本発明の構成を図面に示す実施例に基
づいて詳細に説明する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described in detail below with reference to the embodiments shown in the drawings.

【0014】図1および図2に本発明の第1の実施例の
磁気ヘッドを示す。この磁気ヘッドは、図1に示すよう
に、酸化物磁性材の基板1に金属磁性膜5とその他の幾
つかの極めて薄い膜が成膜された一対の磁気コア半体
A,Bを突き合わせて接合することによって構成されて
いる。磁気コア半体A,Bは、フェライト等の酸化物磁
性材料からなる基板1と、この基板1のギャップ突き合
わせ面(ギャップ対向面2を含む)に形成された二酸化
ケイ素(SiO2 )等の酸化物からなる第1の反応防止
膜10と、センダスト等の金属磁性材料からなる金属磁
性膜5と、酸化クロム(Cr2 3 )からなる第2の反
応防止膜11,11とから構成されている。また、少な
くとも一方の磁気コア半体例えば磁気コア半体Aにはギ
ャップ対向面2に連続する斜面部3を有する巻線溝4が
形成されている。本実施例の場合、他方の磁気コア半体
Bは平坦な板状に形成され、その内側の面即ち突き合わ
せ面に各膜10,5,11が成膜されている。これら一
対の磁気コア半体A,Bのギャップ対向面2,2の間に
はギャップ6を形成する二酸化ケイ素(SiO2 )等の
非磁性材料からなるギャップ材7が介在されている。そ
して、突き合わせられた一対の磁気コア半体A,Bの間
に形成された巻線窓8の斜面部3の箇所に補強ガラス9
が充填されている。ここで、補強ガラス9は500°C
台の後半以上の溶融状態で充填されるが、反応防止膜1
1,11を形成する酸化クロムは金属磁性膜5,5の中
に拡散することがない。
1 and 2 show a magnetic head according to a first embodiment of the present invention. In this magnetic head, as shown in FIG. 1, a pair of magnetic core halves A and B in which a metal magnetic film 5 and some other extremely thin films are formed on a substrate 1 of an oxide magnetic material are butted against each other. It is configured by joining. The magnetic core halves A and B are composed of a substrate 1 made of an oxide magnetic material such as ferrite and an oxidation of silicon dioxide (SiO 2 ) formed on the gap abutting surface (including the gap facing surface 2) of the substrate 1. The first reaction preventive film 10 made of a substance, the metal magnetic film 5 made of a metal magnetic material such as sendust, and the second reaction preventive films 11, 11 made of chromium oxide (Cr 2 O 3 ). There is. Further, at least one of the magnetic core halves, for example, the magnetic core half A, is provided with a winding groove 4 having a slope 3 continuous with the gap facing surface 2. In the case of the present embodiment, the other magnetic core half B is formed in a flat plate shape, and the films 10, 5, 11 are formed on the inner surface, that is, the abutting surface. A gap member 7 made of a non-magnetic material such as silicon dioxide (SiO 2 ) forming a gap 6 is interposed between the gap facing surfaces 2 and 2 of the pair of magnetic core halves A and B. Then, the reinforcing glass 9 is provided on the slope portion 3 of the winding window 8 formed between the paired magnetic core halves A and B.
Is filled. Here, the tempered glass 9 is 500 ° C.
The reaction-preventing film 1 is filled in the molten state in the latter half or more of the table,
The chromium oxide forming the layers 1 and 11 does not diffuse into the metal magnetic films 5 and 5.

【0015】以上のように構成された磁気ヘッドは例え
ば次のようにして製造される。まず、平板状のフェライ
ト基板1と巻線溝4を形成した舟形のフェライト基板1
のそれぞれのギャップ対向面2及びその他の突き合わせ
面や巻線溝4内にスパッタリング等の薄膜形成技術によ
って二酸化ケイ素からなる第1の反応防止膜10,10
をそれぞれ形成する。次いで、この第1の反応防止膜1
0,10の上に、同様にスパッタリングなどにより金属
磁性膜5,5となるセンダスト合金を成膜する。その
後、金属磁性膜5,5の上から同様にスパッタリングな
どによって酸化クロムの膜を成膜し、第2の反応防止膜
11,11を形成する。これによって、一対の磁気コア
半体A,Bを得る。その後、いずれか一方若しくは双方
の磁気コア半体A,Bの第2の反応防止膜11の上にギ
ャップ材7を成膜して一対の磁気コア半体A,Bを接着
する。このとき、磁気コア半体A,B間の斜面部3には
溶融した補強ガラス9が充填され固められている。
The magnetic head having the above structure is manufactured, for example, as follows. First, a flat ferrite substrate 1 and a boat-shaped ferrite substrate 1 in which winding grooves 4 are formed
Of the first reaction preventive film 10, 10 made of silicon dioxide by a thin film forming technique such as sputtering in the gap facing surface 2 of each of the
Are formed respectively. Then, this first reaction-preventing film 1
Similarly, a sendust alloy to be the metal magnetic films 5 and 5 is formed on the films 0 and 10 by sputtering or the like. After that, a chromium oxide film is similarly formed on the metal magnetic films 5 and 5 by sputtering or the like to form the second reaction prevention films 11 and 11. As a result, a pair of magnetic core halves A and B are obtained. After that, the gap material 7 is formed on the second reaction preventing film 11 of one or both of the magnetic core halves A and B, and the pair of magnetic core halves A and B are bonded. At this time, the sloped portion 3 between the magnetic core halves A and B is filled and solidified with the molten reinforcing glass 9.

【0016】図3に第2の実施例の磁気ヘッドを示す。
この磁気ヘッドは、金属磁性膜5,5と補強ガラス9と
の間の反応を防止する反応防止膜11,11として酸化
クロムを用いている点は上記第1の実施例と同様である
が、本実施例では、この酸化クロムの膜がギャップ材と
しても使用されている。即ち、本実施例では、反応防止
膜11,11を形成する酸化クロムがギャップ材(図1
の符号7で示す部分を参照)を兼用している。酸化クロ
ムは非磁性材であるため、ギャップ材として用いること
ができる。
FIG. 3 shows a magnetic head of the second embodiment.
This magnetic head is similar to the first embodiment in that chromium oxide is used as the reaction preventing films 11 and 11 for preventing the reaction between the metal magnetic films 5 and 5 and the reinforcing glass 9. In this embodiment, this chromium oxide film is also used as the gap material. That is, in the present embodiment, the chromium oxide forming the reaction preventive films 11 and 11 is the gap material (see FIG.
(See the part indicated by reference numeral 7). Since chromium oxide is a non-magnetic material, it can be used as a gap material.

【0017】なお、上述の実施例は本発明の好適な実施
の一例ではあるがこれに限定されるものではなく本発明
の要旨を逸脱しない範囲において種々変形実施可能であ
る。例えば、本実施例では両方の磁気コア半体A,Bに
金属磁性膜5がそれぞれ形成されたMIGヘッドについ
て説明したが、本発明はこれに限定されるものではな
く、例えば片方の磁気コア半体にのみ金属磁性膜が形成
されたMIGヘッドにも応用できることは言うまでもな
い。この場合にはギャップ材あるいは反応防止膜11を
介在させて突き合わせられる一方の磁気コア半体の金属
磁性膜とこれに対向する他方の磁気コア半体の酸化物磁
性材との間でギャップが構成される。また、両磁気コア
半体A,Bの形状は図示の如き非対称形状に限られず対
称形状であっても良い。
The above-described embodiment is an example of the preferred embodiment of the present invention, but the present invention is not limited to this, and various modifications can be made without departing from the scope of the present invention. For example, the MIG head in which the metal magnetic film 5 is formed on each of the magnetic core halves A and B has been described in the present embodiment, but the present invention is not limited to this. For example, one magnetic core half is used. It goes without saying that the present invention can also be applied to an MIG head in which a metal magnetic film is formed only on the body. In this case, a gap is formed between the metal magnetic film of one magnetic core half body and the oxide magnetic material of the other magnetic core half body facing each other, which are butted against each other with the gap material or the reaction preventing film 11 interposed therebetween. To be done. The shapes of the two magnetic core halves A and B are not limited to the asymmetrical shapes shown in the drawing, but may be symmetrical shapes.

【0018】[0018]

【発明の効果】以上の説明より明らかなように、本発明
の磁気ヘッドは、一対の磁気コア半体間の斜面部に充填
される補強ガラスと金属磁性膜との間に酸化クロムより
成る反応防止膜を設けているので、500°C台の後半
以上で溶融する補強ガラスを充填しても、反応防止膜の
酸化クロムは金属磁性膜の中に拡散することがなく、補
強ガラスと金属磁性膜との間の反応を確実に防止できる
と共に金属磁性膜の軟磁気特性が劣化するのを防ぐこと
ができる。
As is apparent from the above description, in the magnetic head of the present invention, the reaction of chromium oxide between the reinforcing glass and the metallic magnetic film, which are filled in the slope between the pair of magnetic core halves. Since the protective film is provided, even if the reinforcing glass that melts in the latter half of the 500 ° C range or higher is filled, the chromium oxide in the reaction preventive film does not diffuse into the metallic magnetic film, and the reinforcing glass and metallic magnetic The reaction with the film can be reliably prevented, and the soft magnetic characteristics of the metal magnetic film can be prevented from deteriorating.

【0019】また、反応防止膜を形成する酸化クロムが
ギャップ材を兼用する場合には、製造工程を省略でき、
構造も簡素化され、コスト低減できる。
When the chromium oxide forming the reaction preventive film also serves as the gap material, the manufacturing process can be omitted,
The structure is simplified and the cost can be reduced.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の磁気ヘッドの一実施例を示す図で、磁
気ヘッドの全体を表す斜視図である。
FIG. 1 is a diagram showing an embodiment of a magnetic head of the present invention, and is a perspective view showing the entire magnetic head.

【図2】図1のIIで示す囲み部分の拡大斜視図である。FIG. 2 is an enlarged perspective view of a portion surrounded by II in FIG.

【図3】本発明の磁気ヘッドの他の実施例の要部を示す
斜視図である。
FIG. 3 is a perspective view showing a main part of another embodiment of the magnetic head of the present invention.

【図4】従来の磁気ヘッドの全体を示す斜視図である。FIG. 4 is a perspective view showing an entire conventional magnetic head.

【図5】図4のVで示す囲み部分の拡大斜視図である。5 is an enlarged perspective view of a surrounding portion indicated by V in FIG.

【符号の説明】[Explanation of symbols]

1 基板 2 ギャップ突き合わせ面 3 斜面部 4 巻線溝 5 金属磁性膜 6 ギャップ 7 ギャップ材 8 巻線窓 9 補強ガラス 11 酸化クロムからなる反応防止膜 DESCRIPTION OF SYMBOLS 1 Substrate 2 Gap abutting surface 3 Slope 4 Winding groove 5 Metallic magnetic film 6 Gap 7 Gap material 8 Winding window 9 Reinforcing glass 11 Reaction preventive film made of chromium oxide

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 少なくとも一方の磁気コア半体が酸化物
磁性材料の基板と金属磁性膜により構成されかつギャッ
プ対向面に連続する斜面部を有する一対の磁気コア半体
をギャップ材を介在させて突き合わせると共にこれら一
対の磁気コア半体間の前記斜面部に補給ガラスを充填し
てなる磁気ヘッドにおいて、前記補強ガラスと前記金属
磁性膜との間に酸化クロムより成る反応防止膜を設けた
ことを特徴とする磁気ヘッド。
1. A pair of magnetic core halves, at least one magnetic core half of which is composed of a substrate of an oxide magnetic material and a metal magnetic film, and which has a slope portion continuous to a gap facing surface with a gap material interposed. In a magnetic head having a pair of magnetic core halves butted together and filled with supplemental glass on the sloped portion, a reaction preventive film made of chromium oxide is provided between the reinforcing glass and the metal magnetic film. Magnetic head.
【請求項2】 前記反応防止膜を形成する酸化クロムが
前記ギャップ材を兼用していることを特徴とする請求項
1記載の磁気ヘッド。
2. The magnetic head according to claim 1, wherein the chromium oxide forming the reaction preventing film also serves as the gap material.
JP14829493A 1993-05-28 1993-05-28 Magnetic head Pending JPH06338024A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14829493A JPH06338024A (en) 1993-05-28 1993-05-28 Magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14829493A JPH06338024A (en) 1993-05-28 1993-05-28 Magnetic head

Publications (1)

Publication Number Publication Date
JPH06338024A true JPH06338024A (en) 1994-12-06

Family

ID=15449565

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14829493A Pending JPH06338024A (en) 1993-05-28 1993-05-28 Magnetic head

Country Status (1)

Country Link
JP (1) JPH06338024A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180371589A1 (en) * 2015-11-06 2018-12-27 Lg Innotek Co., Ltd. Soft-magnetic alloy

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180371589A1 (en) * 2015-11-06 2018-12-27 Lg Innotek Co., Ltd. Soft-magnetic alloy

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