JPH076538A - Floating magnetic head - Google Patents
Floating magnetic headInfo
- Publication number
- JPH076538A JPH076538A JP16653393A JP16653393A JPH076538A JP H076538 A JPH076538 A JP H076538A JP 16653393 A JP16653393 A JP 16653393A JP 16653393 A JP16653393 A JP 16653393A JP H076538 A JPH076538 A JP H076538A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic head
- magnetic
- floating
- recording medium
- air bearing
- 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
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は磁気ディスク装置等にお
いて、磁気記録媒体に対して浮上状態で情報を記録ある
いは再生する浮上式磁気ヘッドに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floating magnetic head for recording or reproducing information in a floating state on a magnetic recording medium in a magnetic disk device or the like.
【０００２】[0002]
【従来の技術】一般に、磁気ディスク装置の磁気記録媒
体に情報を記録、再生する浮上式磁気ヘッドは、磁気記
録媒体を回転させることにより、浮上式磁気ヘッドを磁
気記録媒体から微小の隙間だけ浮上させて磁気記録媒体
に記録あるいは再生を行なう。そして、磁気記録媒体の
回転が停止している時は、浮上式磁気ヘッドが磁気記録
媒体に接触している。このように、浮上式磁気ヘッドが
磁気記録媒体に接触した状態から、磁気記録媒体の回転
により浮上式磁気ヘッドが浮上し、さらに、磁気記録媒
体の回転が停止すると浮上式磁気ヘッドが磁気記録媒体
上に接触するという方式をＣＳＳ（コンタクト・スター
ト・ストップ）方式という。2. Description of the Related Art In general, a levitation type magnetic head for recording and reproducing information on a magnetic recording medium of a magnetic disk device rotates the magnetic recording medium to levitate the levitation type magnetic head from the magnetic recording medium with a minute gap. Then, recording or reproduction is performed on the magnetic recording medium. Then, when the rotation of the magnetic recording medium is stopped, the floating magnetic head is in contact with the magnetic recording medium. In this way, the floating magnetic head floats by the rotation of the magnetic recording medium from the state where the floating magnetic head is in contact with the magnetic recording medium, and when the rotation of the magnetic recording medium is stopped, the floating magnetic head causes the magnetic recording medium to move. The method of touching the top is called CSS (contact start stop) method.
【０００３】従来例について、図４及び図５を参照して
説明する。図５は従来の浮上式磁気ヘッド１の主要構成
部分を示す斜視図である。図４は従来の浮上式磁気ヘッ
ド１が磁気記録媒体２０に浮上している拡大模式図であ
る。浮上式磁気ヘッド１はＡｌ2 Ｏ3 ・ＴｉＣ等の非磁
性材料によるスライダ４とスライダ４のトレーリング側
に設けた磁気ヘッド素子部５により浮上面２を磁気記録
媒体２０が対向する面に２本の突起状のレールとして形
成してある。磁気ヘッド素子部５の浮上面２には磁気ギ
ャップ３が形成されている。なお、浮上式磁気ヘッド１
のスライダ４を支持する支持装置等は省略してある。A conventional example will be described with reference to FIGS. 4 and 5. FIG. 5 is a perspective view showing the main components of the conventional floating magnetic head 1. FIG. 4 is an enlarged schematic diagram in which the conventional floating magnetic head 1 is floating on the magnetic recording medium 20. The levitation type magnetic head 1 has a slider 4 made of a non-magnetic material such as Al 2 O 3 .TiC and a magnetic head element 5 provided on the trailing side of the slider 4 so that the air bearing surface 2 faces the surface facing the magnetic recording medium 20. It is formed as a protruding rail of a book. A magnetic gap 3 is formed on the air bearing surface 2 of the magnetic head element portion 5. The floating magnetic head 1
The supporting device for supporting the slider 4 is omitted.
【０００４】前記浮上式磁気ヘッド１においては、磁気
記録媒体２０の回転停止時には、浮上式磁気ヘッド１の
浮上面２が磁気記録媒体２０の浮上式磁気ヘッド１に対
向する対向面２１に接触しており、磁気記録媒体２０の
回転により、浮上式磁気ヘッド１の浮上面２を通る空気
の流れにより磁気記録媒体２０の対向面２１から浮上
し、所定の磁気記録あるいは再生等を行なう。そして、
磁気記録媒体２０の回転停止により浮上式磁気ヘッド１
の浮上面２は再び磁気記録媒体２０の対向面２１に接触
して停止する。In the floating magnetic head 1, the floating surface 2 of the floating magnetic head 1 contacts the facing surface 21 of the magnetic recording medium 20 facing the floating magnetic head 1 when the rotation of the magnetic recording medium 20 is stopped. The rotation of the magnetic recording medium 20 causes the air flow through the air bearing surface 2 of the levitation type magnetic head 1 to levitate from the facing surface 21 of the magnetic recording medium 20 to perform predetermined magnetic recording or reproduction. And
The floating magnetic head 1 is provided by stopping the rotation of the magnetic recording medium 20.
The air bearing surface 2 again contacts the facing surface 21 of the magnetic recording medium 20 and stops.
【０００５】以上のようにＣＳＳ動作を繰り返し行なっ
ていると、浮上面２の突部が摩耗して、浮上式磁気ヘッ
ド１が磁気記録媒体２０に接触した際に、浮上式磁気ヘ
ッド１が磁気記録媒体２０に吸着してしまうという問題
がある。吸着の問題を解消するために、スライダ４の浮
上面２の表面粗さを粗く、山と谷を大きく形成し、ＣＳ
Ｓ動作の耐久回数を長くする方法等もとられているが、
この場合には、表面粗さを大きくした分、浮上量を下げ
ることができず、対向面２１から磁気ギャップ３までの
浮上量を大きくする必要があり、記録密度を高めるため
に必要な低浮上化が困難となる。When the CSS operation is repeated as described above, when the protrusion of the air bearing surface 2 is worn and the levitation magnetic head 1 comes into contact with the magnetic recording medium 20, the levitation magnetic head 1 becomes magnetic. There is a problem that the recording medium 20 is adsorbed. In order to solve the problem of adsorption, the surface roughness of the air bearing surface 2 of the slider 4 is made rough, and the peaks and valleys are formed to be large.
Although methods such as lengthening the number of S-operation durability have been taken,
In this case, the flying height cannot be reduced by the amount of the increased surface roughness, and the flying height from the facing surface 21 to the magnetic gap 3 needs to be increased, and the low flying height required to increase the recording density is required. Becomes difficult.
【０００６】[0006]
【発明が解決しようとする課題】本発明は、前記従来の
技術の有する問題を解消するためになされたものであ
る。本発明の目的は、浮上式磁気ヘッドと磁気記録媒体
との吸着問題を解消すると同時に、低浮上化を可能と
し、より高密度記録を実現する浮上式磁気ヘッドを提供
することにある。SUMMARY OF THE INVENTION The present invention has been made to solve the problems of the above-mentioned conventional techniques. It is an object of the present invention to provide a floating magnetic head that solves the problem of attraction between the floating magnetic head and the magnetic recording medium, and at the same time enables low flying and realizes higher density recording.
【０００７】[0007]
【課題を解決するための手段】前記課題を解決するため
に、本発明は磁気記録媒体に対して浮上状態で情報を記
録再生する浮上式磁気ヘッドにおいて、該浮上式磁気ヘ
ッドの磁気ギャップを含む突出面が該浮上式磁気ヘッド
の浮上面よりも磁気記録媒体側に位置すると共に該浮上
面からの突出量を該浮上式磁気ヘッドの浮上量よりも小
さくしたことを特徴とするものである。In order to solve the above-mentioned problems, the present invention relates to a levitation type magnetic head for recording and reproducing information in a levitation state on a magnetic recording medium, including a magnetic gap of the levitation type magnetic head. The protrusion surface is located closer to the magnetic recording medium than the air bearing surface of the floating magnetic head, and the protrusion amount from the air bearing surface is smaller than the flying height of the floating magnetic head.
【０００８】また、前記浮上面から突出した磁気ギャッ
プを含む前記突出面のトラック幅方向の幅寸法をトラッ
ク幅よりも大きく、レール幅よりも小さくしたことを特
徴とするものである。さらに、前記浮上面から突出した
磁気ギャップを含む前記突出面と前記浮上面からランダ
ムに多数個突出した磁気ギャップを含まない突出面との
全体面積を浮上面全体の面積の０．０１％以上３０％以
下にしたことを特徴とするものである。The width dimension in the track width direction of the projecting surface including the magnetic gap projecting from the air bearing surface is larger than the track width and smaller than the rail width. Further, the total area of the protruding surface including the magnetic gap protruding from the air bearing surface and the protruding surface not including the magnetic gap randomly protruding from the air bearing surface is 0.01% or more of the total area of the air bearing surface 30. It is characterized in that it is made less than or equal to%.
【０００９】[0009]
【作用】本発明の浮上式磁気ヘッドによれば、磁気ギャ
ップを含む突出面が浮上面よりも磁気記録媒体側に位置
しているので、磁気ギャップと磁気記録媒体との距離を
小さくすることができ、その結果、記録、再生効率を高
めることができ、より高密度記録を可能にする。また、
前記浮上面から突出した磁気ギャップを含む前記突出面
のトラック幅方向の幅寸法をトラック幅よりも大きく、
レール幅よりも小さくしているので、磁気記録媒体に対
して磁気ギャップ全体が同一の平面で対向でき、記録、
再生効率を下げることなく、より高密度記録を可能にす
る。According to the levitation type magnetic head of the present invention, the protruding surface including the magnetic gap is located closer to the magnetic recording medium than the air bearing surface. Therefore, the distance between the magnetic gap and the magnetic recording medium can be reduced. As a result, recording and reproducing efficiency can be improved, and higher density recording can be achieved. Also,
A width dimension in the track width direction of the protruding surface including a magnetic gap protruding from the air bearing surface is larger than the track width,
Since the width is smaller than the rail width, the entire magnetic gap can face the magnetic recording medium in the same plane, and recording,
It enables higher density recording without lowering the reproduction efficiency.
【００１０】さらに、前記浮上面から突出した磁気ギャ
ップを含む前記突出面と前記浮上面からランダムに多数
個突出した磁気ギャップを含まない突出面との全体面積
を浮上面全体の面積の０．０１％以上、３０％以下にし
たので、突出面が磁気記録媒体に接触するＣＳＳ動作を
いくら繰り返えしても、突出面が極度に摩耗することが
なく、浮上式磁気ヘッドが磁気記録媒体に吸着すること
がなくなる。そして、浮上面の表面粗さを粗くすること
なく、浮上面からわずかに突出する突出面を設けたの
で、磁気記録媒体に対する浮上式磁気ヘッドの浮上量を
低くすることができる。従って、より高密度記録を可能
にする。Further, the total area of the projecting surface including the magnetic gap projecting from the air bearing surface and the projecting surface not including the magnetic gap projecting randomly from the air bearing surface is 0.01 of the total area of the air bearing surface. % To 30% or less, no matter how many CSS operations the protruding surface comes into contact with the magnetic recording medium are repeated, the protruding surface is not extremely worn, and the floating magnetic head can be used as a magnetic recording medium. It will not be adsorbed. Since the protruding surface slightly protruding from the air bearing surface is provided without increasing the surface roughness of the air bearing surface, the flying height of the floating magnetic head with respect to the magnetic recording medium can be reduced. Therefore, higher density recording is possible.
【００１１】[0011]
【実施例】次に、本発明の実施例について図面を参照し
て説明する。図１は本発明の一実施例に係る浮上式磁気
ヘッド１０が磁気記録媒体２０に浮上している部分拡大
模式図である。図２は本発明の一実施例に係る浮上式磁
気ヘッド１０の主要構成部分を示す正面平面図である。
浮上式磁気ヘッド１０はＡｌ2 Ｏ3 ・ＴｉＣ等の非磁性
材料によるスライダ１４とスライダ１４のトレーリング
側に設けた磁気ヘッド素子部１５により浮上面１２を磁
気記録媒体２０が対向する面に２本の突起状のレールと
して形成する。磁気ヘッド素子部１５は薄膜形成技術に
より磁気回路が構成されており、その浮上面１２には磁
気ギャップ１３を設けてある。なお、浮上式磁気ヘッド
１０のスライダ１４を支持する支持装置等は省略してあ
る。磁気記録媒体２０は浮上式磁気ヘッド１０とのＣＳ
Ｓ動作による摺動での吸着等が起きないように、浮上式
磁気ヘッド１０に対向する対向面２１の表面を山谷形状
に形成してある。Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a partially enlarged schematic view of a levitation type magnetic head 10 according to an embodiment of the present invention levitating on a magnetic recording medium 20. FIG. 2 is a front plan view showing the main components of the levitation type magnetic head 10 according to an embodiment of the present invention.
The flying magnetic head 10 includes a slider 14 made of a non-magnetic material such as Al 2 O 3 .TiC and a magnetic head element portion 15 provided on the trailing side of the slider 14 so that the air bearing surface 12 faces the surface facing the magnetic recording medium 20. It is formed as a protruding rail of a book. A magnetic circuit is formed in the magnetic head element portion 15 by a thin film forming technique, and a magnetic gap 13 is provided on an air bearing surface 12 thereof. A supporting device for supporting the slider 14 of the floating magnetic head 10 and the like are omitted. The magnetic recording medium 20 is a CS with the floating magnetic head 10.
The surface of the facing surface 21 facing the levitation type magnetic head 10 is formed in a mountain-valley shape so as to prevent the attraction by sliding due to the S operation.
【００１２】浮上式磁気ヘッド１０の浮上面１２から磁
気記録媒体２０側に突出させた磁気ギャップ１３を含む
突出面７０と磁気ギャップ１３を含まない突出面７の形
成方法について、その一実施例を説明する。例えば、浮
上式磁気ヘッド１０のトラック幅が８μｍであれば、ト
ラック幅の幅寸法を規定している磁気ギャップ１３のト
ラック幅寸法が８μｍであるから、浮上面１２から突出
している磁気ギャップ１３を含む突出面７０は、たとえ
ば１０μｍ×１０μｍの面で突出面７０を形成する。突
出面７０のトラック幅方向の幅寸法はトラック幅より大
きく、レールの幅より小さく任意に形成できる。浮上面
１２から突出している磁気ギャップ１３を含まない突出
面７は、浮上面１２全体にランダムに、たとえば、１０
μｍ×１０μｍの面で突出面７を形成し、突出面７を２
００個形成する。この場合、浮上面１２の全表面積に対
する突出面７及び突出面７０の旨める面積比は約１％で
ある。An embodiment of a method of forming a protruding surface 70 including a magnetic gap 13 and a protruding surface 7 not including the magnetic gap 13 which are protruded from the air bearing surface 12 of the floating magnetic head 10 toward the magnetic recording medium 20 side will be described. explain. For example, if the track width of the floating magnetic head 10 is 8 μm, the track width of the magnetic gap 13 that defines the track width is 8 μm. The protruding surface 70 that includes the protruding surface 70 is, for example, a surface of 10 μm × 10 μm. The width dimension of the projecting surface 70 in the track width direction is larger than the track width and smaller than the rail width, and can be arbitrarily formed. The protruding surface 7 that does not include the magnetic gap 13 protruding from the air bearing surface 12 is randomly distributed over the entire air bearing surface 12, for example, 10
The protruding surface 7 is formed by a surface of μm × 10 μm, and the protruding surface 7 is 2
00 pieces are formed. In this case, the ratio of the area of the protruding surface 7 and the protruding surface 70 to the total surface area of the air bearing surface 12 is about 1%.
【００１３】なお、突出面７及び突出面７０の形成は、
各種のエッチング等の手法を用い、たとえば、突出面７
及び突出面７０にマスク等をして、浮上面１２をエッチ
ング等により、必要な深さだけ削り取り段差をつければ
よい。そして、浮上面１２からの突出面７及び突出面７
０の突出量は浮上式磁気ヘッド１０の浮上量より小さい
範囲で任意に設定できる。また、突出面７と突出面７０
の突出量は必要に応じて各々任意の大きさに設定でき
る。そして、突出面７と突出面７０の面形状も角型に限
定しなくともよく、円形、多角形等任意の形状で各々が
任意の大きさに設定できる。さらに、突出面７と突出面
７０の断面形状は図１に示すような段差形状に限定され
るものでなく、台形、半球状等任意の形状に設定でき
る。The projection surface 7 and the projection surface 70 are formed as follows.
Using various etching techniques, for example, the protruding surface 7
Also, the protruding surface 70 may be masked, and the air bearing surface 12 may be etched or the like so as to be scraped to a required depth to form a step. Then, the protruding surface 7 and the protruding surface 7 from the air bearing surface 12
The protrusion amount of 0 can be arbitrarily set within a range smaller than the flying amount of the floating magnetic head 10. In addition, the protruding surface 7 and the protruding surface 70
The amount of protrusion of each can be set to an arbitrary size as required. The surface shapes of the projecting surface 7 and the projecting surface 70 do not have to be limited to the rectangular shape, and can be set to any size such as a circular shape or a polygonal shape. Further, the cross-sectional shapes of the projecting surface 7 and the projecting surface 70 are not limited to the stepped shape as shown in FIG. 1, but can be set to any shape such as a trapezoid or a hemisphere.
【００１４】以上のように形成された浮上式磁気ヘッド
１０は、磁気記録媒体２０の回転が停止している時は浮
上式磁気ヘッド１０の突出面７あるいは突出面７０が磁
気記録媒体２０の浮上式磁気ヘッド１０に対向する対向
面２１に接触しており、磁気記録媒体２０の回転によ
り、浮上式磁気ヘッド１０の浮上面１２を通る空気の流
れにより磁気記録媒体２０の対向面２１から浮上し、所
定の磁気記録あるいは再生等を行なう。そして、磁気記
録媒体２０の回転が停止することにより浮上式磁気ヘッ
ド１０の突出面７あるいは突出面７０が再び磁気記録媒
体２０の対向面２１に接触する。In the levitation type magnetic head 10 formed as described above, when the rotation of the magnetic recording medium 20 is stopped, the protruding surface 7 or 70 of the levitation type magnetic head 10 floats on the magnetic recording medium 20. The magnetic recording medium 20 is in contact with the facing surface 21 that faces the magnetic head 10, and the magnetic recording medium 20 rotates to float from the facing surface 21 of the magnetic recording medium 20 by the flow of air through the floating surface 12 of the floating magnetic head 10. , Performs predetermined magnetic recording or reproduction. Then, when the rotation of the magnetic recording medium 20 is stopped, the protruding surface 7 or the protruding surface 70 of the floating magnetic head 10 comes into contact with the facing surface 21 of the magnetic recording medium 20 again.
【００１５】以上のようなＣＳＳ動作を繰り返し行なっ
ても、本発明の浮上式磁気ヘッド１０によれば、浮上面
１２から突出した磁気ギャップ１３を含む突出面７０あ
るいは磁気ギャップ１３を含まない突出面７を設けてい
るので、突出面７０あるいは突出面７が極度に摩耗する
ことがなく、浮上式磁気ヘッド１０が磁気記録媒体２０
に吸着することがなくなる。そして、浮上面１２の表面
粗さを粗くすることなく、浮上面１２からわずかに突出
する突出面７０あるいは突出面７を設けたので、磁気記
録媒体２０に対する浮上式磁気ヘッド１０の浮上量を低
くすることができ、より高密度記録を可能にする。Even if the CSS operation as described above is repeated, according to the floating magnetic head 10 of the present invention, the protruding surface 70 including the magnetic gap 13 protruding from the air bearing surface 12 or the protruding surface not including the magnetic gap 13 is formed. 7 is provided, the protruding surface 70 or the protruding surface 7 is not extremely worn, and the levitation type magnetic head 10 is used for the magnetic recording medium 20.
No longer sticks to. Since the protruding surface 70 or the protruding surface 7 slightly protruding from the air bearing surface 12 is provided without roughening the surface roughness of the air bearing surface 12, the flying height of the levitation type magnetic head 10 with respect to the magnetic recording medium 20 is reduced. It is possible to achieve higher density recording.
【００１６】次に、本発明の浮上式磁気ヘッド１０の浮
上面１２の全面積（突出面７０及び突出面７の全面積も
含む）に対する突出面７０と突出面７との合計の面積比
を変化させた時のＣＳＳ耐久回数の変化を示すグラフを
図３に示す。ＣＳＳ耐久回数は浮上式磁気ヘッド１０が
磁気記録媒体２０と吸着問題等を起こすまでの回数で、
通常３万回以上の保証が要求されている。図３よりわか
るように、突出面７０と突出面７との合計面積比が０．
０１％以上、３０％以下の時にＣＳＳ耐久回数は３万回
以上を保証できることがわかる。Next, the total area ratio of the projecting surface 70 and the projecting surface 7 to the total area of the air bearing surface 12 (including the total area of the projecting surface 70 and the projecting surface 7) of the floating magnetic head 10 of the present invention is shown. FIG. 3 is a graph showing changes in the number of times of CSS endurance when changed. The CSS durability count is the number of times until the floating magnetic head 10 causes an adsorption problem with the magnetic recording medium 20,
Normally, a guarantee of 30,000 times or more is required. As can be seen from FIG. 3, the total area ratio of the protruding surface 70 and the protruding surface 7 is 0.
It can be seen that the CSS durability can be guaranteed to be 30,000 times or more when the content is 01% or more and 30% or less.
【００１７】以上の実施例で説明した浮上式磁気ヘッド
１０は、磁気ヘッド素子部を薄膜形成したものについて
説明したが、スライダ１４にＭｎ−Ｚｎフェライト等の
磁性材料を用いたモノリシックタイプのバルクヘッド、
コンポジットタイプのバルクヘッド、さらに実施例では
２レールの浮上式磁気ヘッドを例にしたが、１レールあ
るいは３レール等いかなる構成の浮上式磁気ヘッドにお
いても本発明は実施できる。The levitation type magnetic head 10 described in the above embodiments has been described with the magnetic head element portion formed as a thin film, but the slider 14 is a monolithic bulk head using a magnetic material such as Mn-Zn ferrite. ,
Although the composite type bulkhead, and the floating magnetic head with two rails in the embodiment is taken as an example, the present invention can be implemented with any type of floating magnetic head such as one rail or three rails.
【００１８】[0018]
【発明の効果】以上説明したように、本発明による浮上
式磁気ヘッドにおいては、磁気ギャップを含む突出面が
浮上面より磁気記録媒体側に位置しているので、記録再
生効率を高めることができ、より高密度記録が可能とな
る。さらに、磁気ギャップを含む突出面と浮上面からラ
ンダムに突出した磁気ギャップを含まない突出面を設け
たことにより、浮上式磁気ヘッドと磁気記録媒体との吸
着問題を解消しＣＳＳ耐久回数を大幅に改善し、浮上式
磁気ヘッドの低浮上化を可能とし、高密度記録化への対
応が可能な浮上式磁気ヘッドを提供できる。As described above, in the levitation type magnetic head according to the present invention, the protruding surface including the magnetic gap is located closer to the magnetic recording medium side than the air bearing surface, so that the recording / reproducing efficiency can be improved. , Higher density recording is possible. Further, by providing the protruding surface including the magnetic gap and the protruding surface that does not include the magnetic gap and randomly protruding from the air bearing surface, the problem of adsorption between the levitation type magnetic head and the magnetic recording medium is solved and the CSS durability number is significantly increased. It is possible to provide a levitation type magnetic head which is improved and enables the levitation type magnetic head to be lowered, and which can be applied to high density recording.
【図１】本発明の一実施例に係る浮上式磁気ヘッドが磁
気記録媒体に浮上している拡大模式図である。FIG. 1 is an enlarged schematic view of a levitation type magnetic head according to an embodiment of the present invention levitating on a magnetic recording medium.
【図２】本発明の一実施例に係る浮上式磁気ヘッドの主
要構成部分を示す正面平面図である。FIG. 2 is a front plan view showing main components of a levitation type magnetic head according to an embodiment of the present invention.
【図３】本発明の一実施例に係る浮上式磁気ヘッドの突
出面の面積比を変化させた場合のＣＳＳ耐久回数の変化
を示すグラフである。FIG. 3 is a graph showing changes in the number of times of CSS durability when the area ratio of the protruding surface of the floating magnetic head according to the embodiment of the present invention is changed.
【図４】従来の浮上式磁気ヘッドが磁気記録媒体に浮上
している拡大模式図である。FIG. 4 is an enlarged schematic view of a conventional floating magnetic head floating on a magnetic recording medium.
【図５】従来の浮上式磁気ヘッドの主要構成部分を示す
斜視図である。FIG. 5 is a perspective view showing main components of a conventional floating magnetic head.
７ 突出面 ７０ 突出面 １０ 浮上式磁気ヘッド １２ 浮上面 １３ 磁気ギャップ １４ スライダ １５ 磁気ヘッド素子部 ２０ 磁気記録媒体 ２１ 対向面 7 Projection Surface 70 Projection Surface 10 Flying Magnetic Head 12 Airborne Surface 13 Magnetic Gap 14 Slider 15 Magnetic Head Element 20 Magnetic Recording Medium 21 Opposing Surface
Claims (3)
記録再生する浮上式磁気ヘッドにおいて、該浮上式磁気
ヘッドの磁気ギャップを含む突出面を該浮上式磁気ヘッ
ドの浮上面よりも磁気記録媒体側に位置させると共に該
浮上面からの突出量を該浮上式磁気ヘッドの浮上量より
も小さくしたことを特徴とする浮上式磁気ヘッド。1. In a levitation type magnetic head for recording and reproducing information in a levitation state on a magnetic recording medium, a protruding surface including a magnetic gap of the levitation type magnetic head is more magnetically recorded than an air bearing surface of the levitation type magnetic head. A flying magnetic head, characterized in that the flying magnetic head is located on the medium side and the amount of projection from the flying surface is smaller than the flying height of the flying magnetic head.
含む前記突出面のトラック幅方向の幅寸法をトラック幅
よりも大きく、レール幅よりも小さくしたことを特徴と
する請求項１記載の浮上式磁気ヘッド。2. The levitation system according to claim 1, wherein a width dimension of the protruding surface including a magnetic gap protruding from the air bearing surface in the track width direction is larger than the track width and smaller than the rail width. Magnetic head.
含む前記突出面と前記浮上面からランダムに多数個突出
した磁気ギャップを含まない突出面との全体面積を浮上
面全体の面積の０．０１％以上３０％以下にしたことを
特徴とする請求項２記載の浮上式磁気ヘッド。3. The total area of the projecting surface including the magnetic gap projecting from the air bearing surface and the projecting surface randomly projecting from the air bearing surface and not including the magnetic gap is 0.01 of the total area of the air bearing surface. 3. The flying magnetic head according to claim 2, wherein the content is set to be not less than 30% and not more than 30%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16653393A JPH076538A (en) | 1993-06-11 | 1993-06-11 | Floating magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16653393A JPH076538A (en) | 1993-06-11 | 1993-06-11 | Floating magnetic head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH076538A true JPH076538A (en) | 1995-01-10 |
Family
ID=15833062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16653393A Pending JPH076538A (en) | 1993-06-11 | 1993-06-11 | Floating magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH076538A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6381090B1 (en) * | 1998-05-21 | 2002-04-30 | Komag, Incorporated | Hard disk drive head-media system having reduced stiction and low fly height |
| US6603639B1 (en) * | 1998-07-21 | 2003-08-05 | Seagate Technology Llc | Slider for disc storage system |
| US6624977B1 (en) * | 1997-10-07 | 2003-09-23 | Seagate Technology Llc | Data storage system with slider having variable hardness pad |
| US6683754B2 (en) | 1998-05-21 | 2004-01-27 | Komag, Inc. | Hard disk drive head-media system having reduced stiction and low fly height |
-
1993
- 1993-06-11 JP JP16653393A patent/JPH076538A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6624977B1 (en) * | 1997-10-07 | 2003-09-23 | Seagate Technology Llc | Data storage system with slider having variable hardness pad |
| US6381090B1 (en) * | 1998-05-21 | 2002-04-30 | Komag, Incorporated | Hard disk drive head-media system having reduced stiction and low fly height |
| US6552871B2 (en) * | 1998-05-21 | 2003-04-22 | Komag, Incorporated | Hard disk drive head-media system having reduced stiction and low fly height |
| US6683754B2 (en) | 1998-05-21 | 2004-01-27 | Komag, Inc. | Hard disk drive head-media system having reduced stiction and low fly height |
| US6603639B1 (en) * | 1998-07-21 | 2003-08-05 | Seagate Technology Llc | Slider for disc storage system |
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