JPS6346608A - Manufacture of magnetic head - Google Patents
Manufacture of magnetic headInfo
- Publication number
- JPS6346608A JPS6346608A JP18991286A JP18991286A JPS6346608A JP S6346608 A JPS6346608 A JP S6346608A JP 18991286 A JP18991286 A JP 18991286A JP 18991286 A JP18991286 A JP 18991286A JP S6346608 A JPS6346608 A JP S6346608A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- thin film
- magnetic thin
- relief groove
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 239000010409 thin film Substances 0.000 claims abstract description 35
- 238000005304 joining Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims description 9
- 239000010408 film Substances 0.000 description 8
- 238000003754 machining Methods 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000889 permalloy Inorganic materials 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 238000003486 chemical etching Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910000702 sendust Inorganic materials 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Landscapes
- Magnetic Heads (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は磁気記録・再生装置用の磁気ヘッドの製造方法
に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method of manufacturing a magnetic head for a magnetic recording/reproducing device.
従来の、磁気ギャップ対向面に磁性薄膜を具備する磁気
ヘッドの製造方法は、前記磁性薄膜を成膜した面に加工
を加えず磁気ギャップを形成しつつ接合部材を用いて２
体の磁性体ブロックを接合していた。このため特開昭５
５−４７８１１によシ第７図、第８図、第９図に示すよ
うに磁性薄膜１を具備する磁性体ブロック２及び３を磁
気ギャップ５及び１０を形成しつつ接合部材４によシ接
合しているという構造になっていた。また特開昭６０−
１５４３１０によシ第９図に示す構造も前記の工程によ
り作製されたものである。A conventional method for manufacturing a magnetic head having a magnetic thin film on the surface facing the magnetic gap is to form a magnetic gap without processing the surface on which the magnetic thin film is formed, and then use a bonding member to form the magnetic head.
The magnetic blocks of the body were joined together. For this reason,
5-47811, as shown in FIGS. 7, 8, and 9, magnetic blocks 2 and 3 each having a magnetic thin film 1 are joined to each other by a joining member 4 while forming magnetic gaps 5 and 10. It was structured as follows. Also, JP-A-60-
The structure shown in FIG. 9 according to No. 154310 was also fabricated by the above process.
しかし従来の技術では接合部材４を磁性薄膜１に直接に
接合するために接合強度が小さく第８図、第９図に示す
如く接合部材４の中にクラック（ひび割れ）が発生した
り、あるいは接合部からブロックが２つに割れてしまう
という問題点を有していた。そこで本発明はこのような
問題点を解決するもので、その目的とするところは、磁
気ギャップ対向面に磁性薄膜を具備する磁気ヘッドの前
記磁気ギャップ対向面の接合強度を大きくする製造方法
を提供するところにある。However, in the conventional technology, since the bonding member 4 is directly bonded to the magnetic thin film 1, the bonding strength is low, and cracks may occur in the bonding member 4 as shown in FIGS. 8 and 9. The problem was that the block was broken into two parts. SUMMARY OF THE INVENTION The present invention is intended to solve these problems, and its purpose is to provide a manufacturing method for increasing the bonding strength of the magnetic gap facing surface of a magnetic head having a magnetic thin film on the magnetic gap facing surface. It's there to do.
本発明の磁気ヘッド製造方法は、磁性薄膜を成膜し文面
を少なくとも一面具備する２体の磁性体ブロックを、前
記磁性薄膜を成膜し文面を対向させ磁気ギャップを形成
しつつ接合部材を用いて接合するという磁気ヘッドの製
造方法において、前記磁性体ブロックの前記磁性薄膜を
成膜する面に副たる逃げ溝を形成する工程と、前記工程
の後に前記副たる逃げ溝を具備する該面に前記磁性薄膜
を成膜する工程と、前記工程の後に前記副たる逃げ溝と
前記磁性薄膜を具備する該面に主たる逃げ溝を形成する
工程と、前記工程の後に前記副次る逃げ溝と前記磁性薄
膜と前記膜たる逃げ溝を具備する該面を互いに対向させ
磁気ギャップを形成しつつ接合部材を用いて接合する工
程とを含むことを特徴とする。The method for manufacturing a magnetic head of the present invention includes forming two magnetic blocks each having a text on at least one side by forming a magnetic thin film, using a bonding member while forming the magnetic thin film and facing the text to form a magnetic gap. In the method of manufacturing a magnetic head, the magnetic head is bonded by bonding, including a step of forming a secondary relief groove on the surface of the magnetic block on which the magnetic thin film is to be formed, and a step of forming a secondary relief groove on the surface provided with the secondary relief groove after the step. a step of forming the magnetic thin film, a step of forming a main relief groove on the surface provided with the secondary relief groove and the magnetic thin film after the step, and a step of forming the secondary relief groove and the secondary relief groove after the step. The present invention is characterized by including the step of joining the magnetic thin film and the surface of the film, which is provided with the escape groove, with a joining member while facing each other and forming a magnetic gap.
第１図は本発明における一実施例による製造方法により
作製された磁気ヘッドの側面図であり、第２図、第３図
は２体の磁性体ブロック１２と１９に副次る逃げ溝１１
と磁性薄膜１と主尺る逃げ溝７を加工する工程を説明す
る斜視図である。第２図（ａＪは本実施例の加工をする
前の磁性体コアの斜視図でちゃ、第２図（ｂ）は副たる
逃げ溝１１を刀日工した磁性体ブロック１２の斜視図で
ある。また第２図（Ｃ）は前記磁性体ブロック１２の副
たる逃げ溝１１を具備する面１３に磁性薄膜１を成膜し
念後の磁性体ブロック１２の斜視図である。第２図（Ｃ
）において磁性薄膜１は副たる逃げ溝１１のために段差
が生じ連続した一面にならない。第２図（ｄ）は主たる
逃げ溝７を形成した磁性体ブロック１２の斜視図である
。副たる逃げ溝１１の次めに磁性薄膜１は不連続になっ
ているためギャップデグス１５を測定するための稜線１
６は主たる逃げ溝７を加工するときの大きな研削抵抗に
よシ割れ等がなく正確に測定することができる。ま九主
たる逃げ溝７を加工するときに研削砥石の磨耗により磁
性薄膜１を剥離させ次場合でも前記膜の剥離は副次る逃
げ溝１１のところで止まり（膜が不連続なため）、フロ
ントギャップ対向面１７やリアギャップ対向面１８にま
で拡大しない。即ち副たる逃げ溝１１を磁性薄膜１の成
膜前に形成しであるので主たる逃げ溝７の加工はそれほ
ど厳しく管理する必要がなくなる。FIG. 1 is a side view of a magnetic head manufactured by a manufacturing method according to an embodiment of the present invention, and FIGS.
FIG. 2 is a perspective view illustrating a process of machining the magnetic thin film 1 and the main relief groove 7. FIG. Fig. 2 (aJ is a perspective view of the magnetic core before being processed in this embodiment, and Fig. 2 (b) is a perspective view of the magnetic block 12 in which the sub-relief groove 11 has been machined. FIG. 2(C) is a perspective view of the magnetic block 12 after the magnetic thin film 1 is formed on the surface 13 of the magnetic block 12, which is provided with the sub relief groove 11. C
), the magnetic thin film 1 has a step difference due to the sub relief groove 11 and does not form a continuous surface. FIG. 2(d) is a perspective view of the magnetic block 12 in which the main clearance groove 7 is formed. Next to the secondary escape groove 11, the magnetic thin film 1 is discontinuous, so the ridge line 1 is used to measure the gap depth 15.
No. 6 can be accurately measured without cracking or the like due to the large grinding resistance when machining the main relief groove 7. Even if the magnetic thin film 1 is peeled off due to wear of the grinding wheel when machining the main relief groove 7, the peeling of the film stops at the secondary relief groove 11 (because the film is discontinuous), and the front gap It does not extend to the opposing surface 17 or the rear gap opposing surface 18. That is, since the secondary relief groove 11 is formed before forming the magnetic thin film 1, the machining of the main relief groove 7 does not need to be controlled so strictly.
また第５図（ａ） ＋ （ｂ） ＋ （ｃ） ＊ （ａ
）は各々′Ｍ２図（ａ几（ｂ）。Also, Fig. 5 (a) + (b) + (c) * (a
) are respectively 'M2 figures (a 几(b).
（ｃ）、（ｄ）の工程に相当するものである。第４図は
第２図、第３図で形成された磁性体ブロック１２と１９
を接合部材４により接合することを示す斜視図である。This corresponds to steps (c) and (d). Figure 4 shows magnetic blocks 12 and 19 formed in Figures 2 and 3.
FIG.
接合部材４は第１図の磁気ヘッドに示す主尺る接合部分
８において磁性体ブロック１２と１３に拡散接合するた
めに非常に高い接合強度を持たせることが可能になる。Since the bonding member 4 is diffusion bonded to the magnetic blocks 12 and 13 at the main bonding portion 8 shown in the magnetic head of FIG. 1, it is possible to provide a very high bonding strength.
ま念本実施例においては副次る逃げ溝１１と主たる逃げ
溝７が段差を作っているので接合のためのセットのとき
に接合部材４を置きやすいという特徴も有する。This embodiment also has the feature that since the secondary relief groove 11 and the main relief groove 7 form a step, it is easy to place the joining member 4 when setting it up for joining.
第５図は本発明による別の実施例であり、リアギャップ
１０にも接合部材４をつけて接合している。この場合接
合強度はよシいっそう大きくできる。また第６図は本発
明による別の実施例であり、磁性薄膜１は片側のブロッ
クにのみ成膜されている。このため副次る逃げ溝１１も
磁性薄膜１の成膜されているブロックについているだけ
である。FIG. 5 shows another embodiment according to the present invention, in which the rear gap 10 is also joined with a joining member 4. In this case, the bonding strength can be even greater. Further, FIG. 6 shows another embodiment according to the present invention, in which the magnetic thin film 1 is formed only on one block. For this reason, the secondary relief groove 11 is only attached to the block on which the magnetic thin film 1 is formed.
ただし主たる接合部分８を作るための主たる逃げ溝７は
両刀のブロックに設けである。However, the main escape groove 7 for creating the main joint part 8 is provided in the block of both swords.
以上のように主尺る逃げ溝７は磁性体ブロック１２及び
１９と接合部材４とが拡散接合することによシ接合強度
の高い、磁性薄膜１をギャップ対向面に具備する磁気ヘ
ッドを提供するためのものであシ、−万副之る逃げ溝１
１は主たる逃げ＠７の加工を助ける役をしている。As described above, the main relief groove 7 provides a magnetic head having a magnetic thin film 1 on the gap-opposing surface, which has high bonding strength by diffusion bonding between the magnetic blocks 12 and 19 and the bonding member 4. It's for the sake of - the escape ditch 1
1 serves as a support for the processing of the main escape @7.
さて３つの実施例において本発明の特徴であるところの
ｌｌＪＪ次る逃げ溝と主たる逃げ溝の加工はスライシン
グマシーン等による機械的加工をしているが、この他の
方法としてはレーザー加工等も考えられる。また化学エ
ツチングを併用したレーザー加工によっても可能である
。また磁性体ブロック１２及び１９はＭｎ−Ｚｎフェラ
イトを用いたがＮｉ−Ｚｎフェライトでもよい。また磁
性薄膜はセンダストを用いたがアモルファス系のＣｏ−
Ｚｒ−Ｎｂ膜やパーマロイ膜でも可能そある。成膜方法
は本実施例ではスパッタリング法を用いたが蒸着゛ 法
でも可能であるしパーマロイ膜の場合はメツキ法でもよ
い。Now, in the three embodiments, the processing of the llJJ next clearance groove and the main clearance groove, which is a feature of the present invention, is performed mechanically using a slicing machine, etc. However, other methods such as laser processing are also considered. It will be done. It is also possible to perform laser processing in combination with chemical etching. Furthermore, although Mn--Zn ferrite is used for the magnetic blocks 12 and 19, Ni--Zn ferrite may be used instead. The magnetic thin film used was Sendust, but an amorphous Co-
A Zr-Nb film or a permalloy film may also be possible. In this embodiment, a sputtering method is used as a film forming method, but a vapor deposition method may also be used, and in the case of a permalloy film, a plating method may also be used.
以上述べ念ように本発明によれば、ギャップ対向面に磁
性薄膜を有する磁気へ゛ラドにおいて、１九る逃げ溝と
副たる逃げ溝とを設けることにより接合強度を簡単に大
きくすることができるという効果を有する。As mentioned above, according to the present invention, the bonding strength can be easily increased by providing the 19th relief groove and the auxiliary relief groove in a magnetic helad having a magnetic thin film on the surface facing the gap. have an effect.
第１図は本発明での一実施例により作られた磁気ヘッド
の側面図。
第２図（ａ）〜（ｄ）は本実施例の工程を示す斜視図。
第３図（ａ）〜（ｄ）は本実施例の工程を示す斜視図。
第４図は本実施例の接合工程を示す斜視図。
第５図は本発明での別の実施例により作られ九磁気ヘッ
ドの側面図。
第６図は本発明での別の実施例により作られた磁気ヘッ
ドの＠面図。
第７図は従来技術による磁気ヘッドの斜視図。
第８図は第７図におけるフロントギアツブの拡大正面図
。
第９図は従来技術による磁気ヘッドの斜視図。
１・・・磁性薄膜
２・・・磁性体コア
３・・・磁性体コア
４・・・接合部材
５・・・フロントギャップ
６・・・磁気ヘッド
７・・・主たる逃げ溝
゛ ８・・・主たる接合部分パ
９・・・コイル線
１０・・・リアギャップ
１１・・・副たる逃げ溝
１２・・・磁性体ブロック
１３・・・成膜面
１４・・・１本る逃げ溝の切断目標
１５・・・ギャップデプス
１６・・・ギャップデプスを示す稜線
１７・・・フロントギャップの対向面
１８・・・リアギャップの対向面
１９・・・磁性体ブロック
２０・・・クラツク
メ３図
第午図
冨乙図
す
鴻９図FIG. 1 is a side view of a magnetic head made according to an embodiment of the present invention. FIGS. 2(a) to 2(d) are perspective views showing the steps of this embodiment. FIGS. 3(a) to 3(d) are perspective views showing the steps of this embodiment. FIG. 4 is a perspective view showing the joining process of this embodiment. FIG. 5 is a side view of a magnetic head made in accordance with another embodiment of the present invention. FIG. 6 is a @ side view of a magnetic head made according to another embodiment of the present invention. FIG. 7 is a perspective view of a magnetic head according to the prior art. FIG. 8 is an enlarged front view of the front gear knob in FIG. 7. FIG. 9 is a perspective view of a magnetic head according to the prior art. 1...Magnetic thin film 2...Magnetic core 3...Magnetic core 4...Joining member 5...Front gap 6...Magnetic head 7...Main relief groove 8... Main joint part 9...Coil wire 10...Rear gap 11...Secondary relief groove 12...Magnetic block 13...Film forming surface 14...Cutting target for one relief groove 15...Gap depth 16...Ridge line indicating gap depth 17...Front gap opposing surface 18...Rear gap opposing surface 19...Magnetic block 20...Kuratsukume 3rd diagram Tomitsu-zu Kou 9-zu
Claims (1)
磁性体ブロックを、前記磁性薄膜を成膜した面を対向さ
せ磁気ギャップを形成しつつ接合部材を用いて接合する
という磁気ヘッドの製造方法において、前記磁性体ブロ
ックの前記磁性薄膜を成膜する面に副たる逃げ溝を形成
する工程と、前記工程の後に前記副たる逃げ溝を具備す
る該面に前記磁性薄膜を成膜する工程と、前記工程の後
に前記副たる逃げ溝と前記磁性薄膜を具備する該面に主
たる逃げ溝を形成する工程と、前記工程の後に前記副た
る逃げ溝と前記磁性薄膜と前記主たる逃げ溝とを具備す
る該面を互いに対向させ磁気ギャップを形成しつつ接合
部材を用いて接合する工程とを含むことを特徴とする、
磁気ヘッドの製造方法。A method for manufacturing a magnetic head, in which two magnetic blocks each having at least one surface on which a magnetic thin film is deposited are joined using a joining member while the surfaces on which the magnetic thin film is deposited face each other and a magnetic gap is formed. forming a secondary relief groove on the surface of the magnetic block on which the magnetic thin film is to be formed, and forming the magnetic thin film on the surface provided with the secondary relief groove after the step; , a step of forming a main relief groove on the surface provided with the secondary relief groove and the magnetic thin film after the step; and a step of forming the secondary relief groove, the magnetic thin film, and the main relief groove after the step. and a step of joining the surfaces facing each other to form a magnetic gap using a joining member,
A method of manufacturing a magnetic head.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61189912A JPH0827892B2 (en) | 1986-08-13 | 1986-08-13 | Manufacturing method of magnetic head |
| US07/866,090 US5245488A (en) | 1986-08-13 | 1992-04-06 | Low-noise composite magnetic head for recording and producing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61189912A JPH0827892B2 (en) | 1986-08-13 | 1986-08-13 | Manufacturing method of magnetic head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6346608A true JPS6346608A (en) | 1988-02-27 |
| JPH0827892B2 JPH0827892B2 (en) | 1996-03-21 |
Family
ID=16249289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61189912A Expired - Lifetime JPH0827892B2 (en) | 1986-08-13 | 1986-08-13 | Manufacturing method of magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0827892B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01248303A (en) * | 1988-03-29 | 1989-10-03 | Hitachi Metals Ltd | Magnetic core for magnetic head for floating type composite magnetic head |
| JPH0386907A (en) * | 1989-06-20 | 1991-04-11 | Sanyo Electric Co Ltd | Floating type magnetic head |
| US5535078A (en) * | 1993-02-12 | 1996-07-09 | Data Card Corporation | Magnetic multi-track read/write head with recessed core gap structure and shield arrangement |
| US5572390A (en) * | 1992-11-11 | 1996-11-05 | Japan Energy Corporation | Magnetic head including an apex portion with two chamfered portions having optimized angles |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101627344B1 (en) * | 2014-09-30 | 2016-06-07 | 부경대학교 산학협력단 | Coil winding machine of BLDC driven by active real-time tension control |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS598120A (en) * | 1982-07-05 | 1984-01-17 | Sharp Corp | Production of magnetic head |
| JPS6334709A (en) * | 1986-07-29 | 1988-02-15 | Sony Corp | Production of magnetic head |
-
1986
- 1986-08-13 JP JP61189912A patent/JPH0827892B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS598120A (en) * | 1982-07-05 | 1984-01-17 | Sharp Corp | Production of magnetic head |
| JPS6334709A (en) * | 1986-07-29 | 1988-02-15 | Sony Corp | Production of magnetic head |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01248303A (en) * | 1988-03-29 | 1989-10-03 | Hitachi Metals Ltd | Magnetic core for magnetic head for floating type composite magnetic head |
| JPH0386907A (en) * | 1989-06-20 | 1991-04-11 | Sanyo Electric Co Ltd | Floating type magnetic head |
| US5572390A (en) * | 1992-11-11 | 1996-11-05 | Japan Energy Corporation | Magnetic head including an apex portion with two chamfered portions having optimized angles |
| US5535078A (en) * | 1993-02-12 | 1996-07-09 | Data Card Corporation | Magnetic multi-track read/write head with recessed core gap structure and shield arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0827892B2 (en) | 1996-03-21 |
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