JPH0416244Y2 - - Google Patents
Info
- Publication number
- JPH0416244Y2 JPH0416244Y2 JP1984035583U JP3558384U JPH0416244Y2 JP H0416244 Y2 JPH0416244 Y2 JP H0416244Y2 JP 1984035583 U JP1984035583 U JP 1984035583U JP 3558384 U JP3558384 U JP 3558384U JP H0416244 Y2 JPH0416244 Y2 JP H0416244Y2
- Authority
- JP
- Japan
- Prior art keywords
- sendust
- glass
- pieces
- magnetic head
- winding groove
- 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
Links
- 229910000702 sendust Inorganic materials 0.000 claims description 39
- 239000011521 glass Substances 0.000 claims description 32
- 239000000463 material Substances 0.000 claims description 11
- 238000004804 winding Methods 0.000 claims description 11
- 230000013011 mating Effects 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000005304 joining Methods 0.000 claims description 3
- 229910000679 solder Inorganic materials 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004544 sputter deposition Methods 0.000 description 4
- 238000005498 polishing Methods 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 238000007733 ion plating Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000001259 photo etching Methods 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910018125 Al-Si Inorganic materials 0.000 description 1
- 229910018520 Al—Si Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Description
【考案の詳細な説明】 本考案は磁気記録用の磁気ヘツドに関する。[Detailed explanation of the idea] The present invention relates to a magnetic head for magnetic recording.
ビデオテープレコーダ用の磁気テープとして近
時高記録密度の特性を有するメタルテープが脚光
を浴びており、又、このメタルテープの特性を十
分に引き出すための記録ヘツドの材料として飽和
磁束密度の高いセンダスト（Fe−Al−Si系）が
注目されている。 Recently, metal tapes with high recording density characteristics have been in the spotlight as magnetic tapes for video tape recorders, and Sendust, which has a high saturation magnetic flux density, is used as a recording head material to fully bring out the characteristics of metal tapes. (Fe-Al-Si system) is attracting attention.
第７図乃至第１０図はセンダスト等の金属材料
を用いた記録ヘツドの従来の製造工程を示してい
る。 7 to 10 show the conventional manufacturing process of a recording head using a metal material such as sendust.
第７図の如く２つのセンダストブロツク１０，
２０の内、一方のブロツク１０に巻線溝５及び銀
ロウ充填溝１２，１２ａを開設し、第８図の如く
該充填溝に銀ロウ７１を埋込み、両ブロツク１
０，２０の突合せ面を鏡面研磨する。巻線溝５を
有するブロツク１０の該巻線溝５と該溝から上方
の銀ロウ充填溝１２ａにかけて所望のギヤツプ長
に対応する厚みにSiO2等のギヤツプ材Ｇを蒸着、
スパツタリング等によつて付着させる。 As shown in Fig. 7, two sendust blocks 10,
A winding groove 5 and silver solder filling grooves 12, 12a are opened in one block 10 of the blocks 20, and silver solder 71 is filled in the filling groove as shown in FIG.
Mirror polish the mating surfaces of 0 and 20. Vapor-depositing a gap material G such as SiO 2 to a thickness corresponding to the desired gap length from the winding groove 5 of the block 10 having the winding groove 5 to the silver solder filling groove 12a above.
Attach by sputtering, etc.
両ブロツク１０，２０を突き合せ、銀ロウ７１
にて溶着せしめる。この溶着されたブロツクをス
ライスした後所望のトラツク幅の厚さに研磨して
第９図の如くセンダスト薄片４を形成し、第１０
図の如く該薄片４の両面にフエライト８１及びガ
ラス８２から成る補強コア８，８を接着剤によつ
て接合してチツプを形成する。 Match both blocks 10 and 20, silver solder 71
Weld it. This welded block is sliced and polished to a desired track width thickness to form sendust thin pieces 4 as shown in FIG.
As shown in the figure, reinforcing cores 8, 8 made of ferrite 81 and glass 82 are bonded to both sides of the thin piece 4 with an adhesive to form a chip.
次にこのチツプの巻線溝５側の端面を、前記ギ
ヤツプ材Ｇが臨出する迄円弧状に研磨してテープ
対接面９を形成し第１１図に示すヘツドを完成す
る。 Next, the end surface of this chip on the winding groove 5 side is polished into an arc shape until the gap material G emerges to form a tape contacting surface 9, thereby completing the head shown in FIG. 11.
従つて上記磁気ヘツドはセンダスト薄片４を形
成する一対のセンダスト片４１，４２間にはバツ
クコアＢ側では２ケ所で銀ロウが介在しているが
巻線溝５とテープ対接面９との間、即ちフロント
コアＦ側には接着剤である銀ロウは介在しておら
ず、ギヤツプ長が不安定であり、最終製品となつ
たときに定められたギヤツプ長から外れたものが
頻出し、歩止りが悪い。 Therefore, in the magnetic head, silver solder is interposed at two places on the back core B side between the pair of sendust pieces 41 and 42 forming the sendust thin piece 4, but between the winding groove 5 and the tape contact surface 9. In other words, there is no silver solder adhesive on the front core F side, and the gap length is unstable, and when the final product is made, the gap length often deviates from the predetermined gap length. It doesn't stop well.
又、ヘツドとしての性能も低下する。 Furthermore, the performance as a head also deteriorates.
本考案はセンダスト片４１，４２の接着剤とし
てガラス６，６１を用い、該ガラスにギヤツプ材
を兼ねさせることによりギヤツプ長を安定させる
ことを目的とする。
The purpose of the present invention is to stabilize the gap length by using glass 6, 61 as an adhesive for the sendust pieces 41, 42, and having the glass also serve as the gap material.
一対のセンダスト片４１，４２の端縁どうしを
接合して所望のトラツク幅の厚みを有するセンダ
スト薄片４を形成し、該センダスト薄片の両面に
補強コア８，８が接合されテープ対接面が円弧状
に形成された磁気ヘツドに於て、両センダスト片
４１，４２の接合側端面の全面に酸化物の膜３，
３１が形成され、該酸化物の膜３，３１の少なく
とも一方は一部を残して部分的に薄く除去し、該
除去部分に接合ガラス６，６１を充填し、巻線溝
５よりテープ対接面９側のガラス６は該テープ対
接面９に達して、該ガラス６がギヤツプ材を兼用
しており、酸化物膜３の非除去部３０は相手酸化
物膜３１に当接していることを特徴とする。
The edges of a pair of sendust pieces 41, 42 are joined together to form a sendust thin piece 4 having a thickness of a desired track width, reinforcing cores 8, 8 are joined to both sides of the sendust thin piece, and the tape contact surface is circular. In the magnetic head formed in an arc shape, the oxide film 3,
31 is formed, at least one of the oxide films 3, 31 is partially thinly removed leaving a part, the removed part is filled with bonding glass 6, 61, and the tape is connected from the winding groove 5. The glass 6 on the surface 9 side has reached the tape contact surface 9, the glass 6 also serves as a gap material, and the non-removed portion 30 of the oxide film 3 is in contact with the mating oxide film 31. It is characterized by
一対のセンダスト片４１，４２間のギヤツプ長
を決めるギヤツプ材であるガラス６が両センダス
ト片４１，４２を接着固定しているため、ギヤツ
プ長が安定する。センダスト片４１，４２の接合
に際し、ガラスを直接にセンダスト片間に挟んで
溶着すると、ガラスとセンダストブロツクの馴染
みが悪いため接着性に問題があるが、本願考案の
様にセンダスト片４１，４２の接合側の端面に予
めガラスとの馴染みの良い酸化物の膜３，３１を
形成しておくことよつて、ガラス接合の信頼度に
何等問題は生じない。
Since the glass 6, which is the gap material that determines the gap length between the pair of sendust pieces 41 and 42, adhesively fixes both the sendust pieces 41 and 42, the gap length is stabilized. When joining the sendust pieces 41 and 42, if the glass is directly sandwiched between the sendust pieces and welded, there is a problem with adhesion because the glass and the sendust block are not compatible, but as in the present invention, the sendust pieces 41 and 42 are By forming the oxide films 3, 31 that are compatible with glass in advance on the end face on the bonding side, no problem arises in the reliability of glass bonding.
又、ギヤツプの一部に於て、一方の酸化物膜３
にガラスを充填しない非除去部３０を形成したた
め、一対のセンダスト片４１，４２をガラス接合
する際に、該非除去部３０が相手酸化物膜３１に
当接してガラス充填層が変形することを防止で
き、高精度でギヤツプ長の管理ができる。以下図
面に示す実施例に基づき本考案を具体的に説明す
る。 Also, in a part of the gap, one of the oxide films 3
Since the non-removable portion 30 that is not filled with glass is formed, when the pair of sendust pieces 41 and 42 are glass-bonded, the non-removable portion 30 is prevented from coming into contact with the mating oxide film 31 and deforming the glass filling layer. The gap length can be managed with high precision. The present invention will be specifically described below based on embodiments shown in the drawings.
第１図は本考案の磁気ヘツドを示し、一対のセ
ンダスト片４１，４２をフロントコアＦ側及びバ
ツクコアＢ側にてガラス６，６１によつて接合し
てセンダスト薄片４を形成し、該薄片４の両面に
従前と同様の補強コア８，８を接着剤にて接着し
ている。 FIG. 1 shows the magnetic head of the present invention, in which a pair of sendust pieces 41 and 42 are joined by glasses 6 and 61 on the front core F side and back core B side to form a sendust thin piece 4. Reinforcement cores 8, 8 similar to those used before are adhered to both sides with adhesive.
フロントコア側のガラス６はヘツドのギヤツプ
長を決めるギヤツプ材Ｇを兼用している。 The glass 6 on the front core side also serves as a gap material G that determines the gap length of the head.
第２図乃至第６図はヘツドの製造方法の説明図
である。 FIGS. 2 to 6 are explanatory diagrams of a method of manufacturing the head.
第２図の如く２本のセンダストブロツク１，２
を準備する。適宜上上記２本のセンダストブロツ
クの内、後工程によつて仮想線で示す巻線溝５を
開設するブロツクをＡブロツク１、他方のブロツ
クをＢブロツク２と呼ぶ。 Two sendust blocks 1 and 2 as shown in Figure 2
Prepare. For convenience, among the two sendust blocks mentioned above, the block in which the winding groove 5 shown by the imaginary line is opened in the subsequent process is called A block 1, and the other block is called B block 2.
両ブロツク１，２のギヤツプ突合せ面１１，１
２を鏡面研磨し、該研磨面にSiO2、Al2O3、
TiO2等の酸化物を蒸着、スパツタリング、イオ
ンプレーテイング等の方法によつて付着させ酸化
物の膜３，３１を形成する。 Gap abutting surfaces 11, 1 of both blocks 1, 2
2 was mirror-polished, and the polished surface was coated with SiO 2 , Al 2 O 3 ,
An oxide such as TiO 2 is deposited by a method such as vapor deposition, sputtering, or ion plating to form oxide films 3, 31.
膜厚は例えば0.2〜0.4μの狭ギヤツプを得る場
合、Ｂブロツク２の膜厚は数百Å、Ａブロツク１
の膜厚は所望のギヤツプ長からＢブロツク２の膜
厚分を減じた厚みとする。 For example, when obtaining a narrow gap of 0.2 to 0.4μ, the film thickness of B block 2 is several hundred Å, and the film thickness of A block 1 is several hundred Å.
The film thickness is determined by subtracting the film thickness of B block 2 from the desired gap length.
第３図の如く、Ａブロツク１に付着させた酸化
物の膜３の内、フロントコア部の前部F1とバツ
クコア部の前部B1を残してフオトエツチングに
よつて膜厚が数百Åになる迄除去し、この除去し
た部分に第４図に示す如く、低軟化点ガラス６，
６１を充填する。このガラスの充填は、ガラスを
スパツタリングした後、フオトエツチングする或
はリフトオフの手法を用いて行なえば可い。 As shown in Fig. 3, of the oxide film 3 deposited on the A block 1, a film thickness of several hundred is removed by photoetching, leaving the front part F1 of the front core part and the front part B1 of the back core part. As shown in FIG. 4, low softening point glass 6,
61 is filled. This glass filling can be performed by sputtering the glass and then photoetching or using a lift-off method.
第５図の如くＡブロツク１に研磨加工等により
巻線溝５を開設した後、Ａブロツク１とＢブロツ
ク２を突き合せガラス６，６１にて溶着する。 As shown in FIG. 5, after forming a winding groove 5 in the A block 1 by polishing or the like, the A block 1 and the B block 2 are brought together and welded together using glasses 6 and 61.
センダストのブロツク１，２の接合に際し、ガ
ラスを直接センダストブロツク間に挾んで溶着せ
しめると、ガラスとセンダストブロツクの馴染み
が悪いため接着性に問題があるとされ、従来はセ
ンダストブロツクの接合は銀ロウが用いられてい
た。しかし、上記の様にセンダストブロツク１，
２の突合せ面に予め蒸着、スパツタリング、イオ
ンプレーテイング等の手法にてガラスとの馴染み
のよい酸化物の膜３，３１を付着せしめておけ
ば、センダストブロツク１，２のガラス接合の信
頼度に何ら問題はない。 When joining sendust blocks 1 and 2, if the glass is sandwiched directly between the sendust blocks and welded, it is said that there is a problem with adhesion because the glass and the sendust blocks do not fit well. Conventionally, sendust blocks were joined using silver solder. was used. However, as mentioned above, Sendust Block 1,
If oxide films 3 and 31 that are compatible with glass are attached in advance to the abutting surfaces of sendust blocks 1 and 2 using a method such as vapor deposition, sputtering, or ion plating, the reliability of glass bonding of sendust blocks 1 and 2 can be increased. There is no problem.
次に従前と同様にして接合したブロツク１，２
をスライス後研磨して第６図の如くセンダストの
薄片４を形成し、該薄片４の両面に補強コア８，
８を接着する。 Next, blocks 1 and 2 were joined in the same way as before.
After slicing and polishing, thin pieces 4 of sendust are formed as shown in FIG. 6, and reinforcing cores 8,
Glue 8.
次に第１図の如く巻線溝５側の端面をガラス６
の部分が露出する迄円弧状に研磨してテープ対接
面９を形成すれば磁気ヘツドが完成する。 Next, as shown in Fig. 1, the end surface on the winding groove 5 side is
The magnetic head is completed by polishing in an arcuate shape until the portion 2 is exposed to form the tape contacting surface 9.
上記磁気ヘツドはセンダスト薄片４を形成する
一対のセンダスト片４１，４２はフロントコアＦ
部に於てもガラス６によつて接着され、該ガラス
６がギヤツプ材Ｇを兼用するものであるから、ギ
ヤツプ長が正しく定まり、製造工程上のロスは生
じず、又ヘツドとしての性能も向上する。又、ギ
ヤツプの一部に於て、一方の酸化物膜３にガラス
を充填しない非除去部３０を形成したため、一対
のセンダスト片４１，４２をガラス接合する際
に、非除去部３０が相手酸化物膜３１に当接して
ガラス充填層が変形することを防止でき、高精度
でギヤツプ長の管理ができる。 In the magnetic head, the pair of sendust pieces 41 and 42 forming the sendust thin piece 4 are the front core F.
Since the part is also bonded by the glass 6, and the glass 6 also serves as the gap material G, the gap length is determined correctly, no loss occurs in the manufacturing process, and the performance as a head is improved. do. In addition, in a part of the gap, one of the oxide films 3 is formed with a non-removed portion 30 that is not filled with glass, so when glass-bonding the pair of sendust pieces 41 and 42, the non-removed portion 30 is filled with glass. It is possible to prevent the glass filling layer from being deformed due to contact with the material film 31, and the gap length can be managed with high precision.
第１図は本考案に係る磁気ヘツドの斜面図、第
２図乃至第６図は製造工程の説明図、第７図乃至
第１０図は従来例の製造工程の説明図、第１１図
は従来例の磁気ヘツドの斜面図である。
４１，４２……センダスト片、４……センダス
ト薄片、６……ガラス、８……コア、Ｇ……ギヤ
ツプ材。
Figure 1 is a perspective view of the magnetic head according to the present invention, Figures 2 to 6 are illustrations of the manufacturing process, Figures 7 to 10 are illustrations of the manufacturing process of the conventional example, and Figure 11 is the conventional example. FIG. 3 is a perspective view of an example magnetic head. 41, 42... Sendust piece, 4... Sendust thin piece, 6... Glass, 8... Core, G... Gap material.
Claims (1)
接合して、接合部に面して巻線溝５を有し且つ所
望のトラツク幅の厚みのセンダスト薄片４を形成
し、該センダスト薄片の両面に補強コア８，８を
接合し、テープ対接面９を円弧状に形成した磁気
ヘツドに於て、両センダスト片４１，４２の接合
側端面の全面に酸化物の膜３，３１が形成され、
該酸化物の膜３，３１の少なくとも一方は一部を
残して部分的に薄く除去し、該除去部分に接合ガ
ラス６，６１を充填し、巻線溝５よりテープ対接
面９側のガラス６は該テープ対接面９に達して該
ガラス６がギヤツプ材を兼用しており、酸化物膜
３の非除去部３０は相手酸化物膜３１に当接して
いる磁気ヘツド。 The edges of a pair of sendust pieces 41 and 42 are joined together to form a sendust thin piece 4 having a winding groove 5 facing the joint and having a thickness of a desired track width, and forming a thin sendust piece 4 on both sides of the sendust thin piece. In the magnetic head in which the reinforcing cores 8, 8 are joined and the tape contact surface 9 is formed in an arc shape, oxide films 3, 31 are formed on the entire surface of the joining side end surfaces of both sendust pieces 41, 42,
At least one of the oxide films 3 and 31 is partially thinly removed leaving a portion, and the removed portion is filled with bonding glasses 6 and 61, and the glass on the side of the tape contacting surface 9 from the winding groove 5 is Reference numeral 6 denotes a magnetic head which reaches the tape contacting surface 9, the glass 6 also serves as a gap material, and the non-removed portion 30 of the oxide film 3 is in contact with a mating oxide film 31.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3558384U JPS60146908U (en) | 1984-03-12 | 1984-03-12 | magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3558384U JPS60146908U (en) | 1984-03-12 | 1984-03-12 | magnetic head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60146908U JPS60146908U (en) | 1985-09-30 |
| JPH0416244Y2 true JPH0416244Y2 (en) | 1992-04-13 |
Family
ID=30539992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3558384U Granted JPS60146908U (en) | 1984-03-12 | 1984-03-12 | magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60146908U (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5122649U (en) * | 1974-08-09 | 1976-02-19 | ||
| JPS534412A (en) * | 1976-07-02 | 1978-01-17 | Hitachi Ltd | Test method for subscribing lines |
| JPS56137517A (en) * | 1980-03-31 | 1981-10-27 | Tdk Corp | Magnetic head and its manufacture |
| JPS5714712A (en) * | 1980-06-30 | 1982-01-26 | Yokogawa Hokushin Electric Corp | Detector for physical quantity |
-
1984
- 1984-03-12 JP JP3558384U patent/JPS60146908U/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5122649U (en) * | 1974-08-09 | 1976-02-19 | ||
| JPS534412A (en) * | 1976-07-02 | 1978-01-17 | Hitachi Ltd | Test method for subscribing lines |
| JPS56137517A (en) * | 1980-03-31 | 1981-10-27 | Tdk Corp | Magnetic head and its manufacture |
| JPS5714712A (en) * | 1980-06-30 | 1982-01-26 | Yokogawa Hokushin Electric Corp | Detector for physical quantity |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60146908U (en) | 1985-09-30 |
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