JPH02103723A - Magnetic recording carrier - Google Patents
Magnetic recording carrierInfo
- Publication number
- JPH02103723A JPH02103723A JP25778288A JP25778288A JPH02103723A JP H02103723 A JPH02103723 A JP H02103723A JP 25778288 A JP25778288 A JP 25778288A JP 25778288 A JP25778288 A JP 25778288A JP H02103723 A JPH02103723 A JP H02103723A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- protective layer
- magnetic
- magnetic layer
- magnetic recording
- 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
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 50
- 239000010410 layer Substances 0.000 claims abstract description 39
- 239000011241 protective layer Substances 0.000 claims abstract description 28
- 239000000758 substrate Substances 0.000 claims abstract description 10
- 239000001257 hydrogen Substances 0.000 claims abstract description 7
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 7
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 7
- 239000010703 silicon Substances 0.000 claims abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 6
- 150000001875 compounds Chemical class 0.000 claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims abstract description 6
- 239000001301 oxygen Substances 0.000 claims abstract description 6
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 5
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 238000007740 vapor deposition Methods 0.000 description 4
- 230000005294 ferromagnetic effect Effects 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229910020630 Co Ni Inorganic materials 0.000 description 2
- 229910002440 Co–Ni Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003302 ferromagnetic material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229910001096 P alloy Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000010884 ion-beam technique Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
Landscapes
- Magnetic Record Carriers (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は磁気的手段により情媒の記録・再生を行なう
磁気記録坦体、とくにその記録媒体の磁性層を保護する
保護層に関するものである。[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a magnetic recording medium for recording and reproducing information by magnetic means, and in particular to a protective layer for protecting the magnetic layer of the recording medium. .
電子計算機の外部記憶装置として使用される磁気ディス
ク装置はディスク状の磁気記録坦体を回転駆幼しながら
その表面に近接保持した磁気ヘッドによって情報の記録
・再生を行なう。A magnetic disk device used as an external storage device for an electronic computer records and reproduces information using a magnetic head held close to the surface of a disk-shaped magnetic recording medium while rotating it.
ｌ。l.
２゜
ディスク状の磁気記録坦体は強磁性体の例えばγ−Ｆｔ
ｔｏｓを材機バインダにより基板の表面に塗着して記録
媒体の磁性層を形成したものが用いられてきたが、記録
密度を高めることができないので、最近では強磁性体の
金属またに合金を鍍Ｎあるいは蒸着して磁性層を形成し
たものを用いる傾向にある。しかしながら、この強磁性
体からなる磁性層は一般に耐湿性に劣り発錆することが
あるので、この磁性層の上に保獲膜を被着形成して保護
するようになっている。The 2° disk-shaped magnetic recording carrier is made of a ferromagnetic material such as γ-Ft.
The magnetic layer of the recording medium has been formed by applying TOS to the surface of the substrate using a material binder, but since it is not possible to increase the recording density, recently ferromagnetic metals or alloys have been used. There is a tendency to use a magnetic layer formed by N coating or vapor deposition. However, this magnetic layer made of ferromagnetic material generally has poor moisture resistance and may rust, so a retention film is formed on the magnetic layer to protect it.
第２図はすでに周知の従来の磁気記録坦体を示す部分断
面図であり、図において＋ｌｌはアルミ合金からなるデ
ィスク状の基板、（２）はこの基板の表面にＮｉ −Ｐ
合金を纏着して形成した下地硬化層であって上記基板Ｉ
Ｉ＋の表面を硬化する。FIG. 2 is a partial cross-sectional view showing a conventional magnetic recording carrier which is already well known.
A hardened base layer formed by adhering an alloy to the substrate I.
Harden the surface of I+.
３１は上記下地硬化層）２１の上に強磁性体Ｃｏ−Ｎｉ
系合金全スパッタリング法により被着した記録媒体の磁
性層、１４１はこの磁性層を保強する保護層であって上
記磁性層（３１の上に白金を被着して形成したものであ
る。31 is the above-mentioned hardened base layer) ferromagnetic Co-Ni is applied on top of 21.
The magnetic layer 141 of the recording medium deposited by the all-alloy sputtering method is a protective layer for reinforcing this magnetic layer, and is formed by depositing platinum on the magnetic layer 31.
従来の磁気記録坦体は以上のように構成され、ディスク
駆動装置（図示せず）に９着して回転させながらその表
面に保持されたヘッドを通しの
て電気信号を磁性層１３）磁化状態の変化に変換するか
あるいはその逆変換全行なうようになっている。磁気記
録坦体が回転全停止しているときはヘッドは保換層）４
）に接触した状態にあるが磁気記録坦体が回転全始める
とヘッドは保護層（４）の表面を摺動じ所定の回転数に
達すると空気の粘性によりその表面に生じる空気流によ
りヘッドは浮上してその表面に近接保持された状態にな
る。捷た、磁気記録坦体が所定の回転数で回転している
状態から徐々に回転数を下げると浮上していたヘッドは
保護層＋４１の表面に接触する。The conventional magnetic recording carrier is constructed as described above, and is mounted on a disk drive device (not shown) and rotated while transmitting electric signals through the head held on the surface of the magnetic layer 13) to determine the magnetization state of the magnetic layer 13). It is designed to convert to a change in , or perform the entire inverse conversion. When the rotation of the magnetic recording medium is completely stopped, the head is in the storage layer)4
), but when the magnetic recording medium starts to rotate fully, the head slides on the surface of the protective layer (4), and when it reaches a predetermined rotational speed, the head floats due to the air flow generated on the surface due to the viscosity of the air. and is held close to the surface. When the rotational speed is gradually lowered from the state in which the twisted magnetic recording carrier is rotating at a predetermined rotational speed, the flying head comes into contact with the surface of the protective layer +41.
このように磁気記録坦体が回転を開始または停止する度
毎ＶＣヘッドが保護層（４１の表面に駆動しその摩擦力
によりストレスを生じる。In this way, each time the magnetic recording medium starts or stops rotating, the VC head is driven against the surface of the protective layer (41), and stress is generated by the frictional force.
上記のような従来の磁気記録坦体では保護層４）が十分
な機械的強度を備えず、また摩擦係数が大きいので、磁
気記録坦体が回転を開始または停止する度毎にヘッドが
保護層１４１の表面を摺動しその摩擦力によりストレス
を生じて保護層４）が剥離し磁性層ｊ３）が損傷を受け
ると云う解決すべき課題があった。In the conventional magnetic recording carrier as described above, the protective layer 4) does not have sufficient mechanical strength and has a large friction coefficient, so the head is forced to remove the protective layer 4) every time the magnetic recording carrier starts or stops rotating. There was a problem to be solved in that the protective layer 4) was peeled off due to stress caused by sliding on the surface of the magnetic layer j3) and the magnetic layer j3) was damaged.
この発明は上記のような課題を解決するためになされた
ものであって磁気記録坦体が回転を開始または停止する
度毎にヘッドが保鍮層の表面を摺動しても保護層が剥離
して磁性層が損傷金堂けることのない磁気記録坦体を得
ることを目的とする。This invention was made to solve the above-mentioned problem, and the protective layer peels off even if the head slides on the surface of the protective layer every time the magnetic recording medium starts or stops rotating. The object of the present invention is to obtain a magnetic recording carrier in which the magnetic layer is not damaged or destroyed.
この発明に係る磁気記録坦体はディスク状の基板の表面
上に記録媒体の磁性層を形成しその上にこの磁性層を保
護する保護層を形成したものにおいて、保護層を硅素、
チタン、ジルコニウム、アルミニウムのいずれか単数の
金属元素と酸素と炭素と水素との化合物にしたものであ
る。A magnetic recording carrier according to the present invention has a magnetic layer of a recording medium formed on the surface of a disk-shaped substrate, and a protective layer for protecting this magnetic layer formed thereon, wherein the protective layer is made of silicon,
It is a compound of a single metal element such as titanium, zirconium, or aluminum, oxygen, carbon, and hydrogen.
この発明においては保護層が硅素、チタン、保護層の表
面をヘッドが摺動しても保護層が剥離することはない。In this invention, the protective layer is made of silicon or titanium, and even if the head slides on the surface of the protective layer, the protective layer will not peel off.
第１図はこの発明の一実施例？示す部分断面図であり、
ＩＩＩ〜（３１ハ上記従来の磁気記録坦体と全く同一の
ものである。ａ４は上記磁性層１３）を保護する保−層
であって上記磁性層（３）の上にクラスタ・イオン・ビ
ーム法により硅素と酸素と炭素と水素との化合物を蒸着
したものである。Is Figure 1 an example of this invention? It is a partial sectional view showing
III~(31c is exactly the same as the above conventional magnetic recording carrier. a4 is a preservation layer that protects the above magnetic layer 13), and a cluster ion beam is placed on the above magnetic layer (3). A compound of silicon, oxygen, carbon, and hydrogen is deposited using a method.
上記のように構成された磁気記録坦体においてはアルミ
合金からなるディスク状の基板＋１１の表面にＮ１−Ｐ
合金を鍍着して下地硬化層（２１を形成し基板１１１の
表面を硬化する。この下地硬化層２１の上に強磁性体の
Ｃｏ−Ｎｉ系合金をスパッタリング法により被着して記
録媒体の磁性層１３）を形成する。更にその上に磁性層
（３）を保護する保護層Ｑ４１ ’ｊＨ蒸着物質の酸化
硅素ならびに水素とメタンの混合ガスを用いてクラスタ
、イオン、ビーム法により蒸着形成する。In the magnetic recording carrier constructed as described above, N1-P is applied to the surface of the disk-shaped substrate +11 made of aluminum alloy.
A hardened base layer (21) is formed by plating the alloy to harden the surface of the substrate 111.A ferromagnetic Co-Ni alloy is deposited on this hardened base layer 21 by sputtering to form a recording medium. A magnetic layer 13) is formed. Furthermore, a protective layer Q41'jH for protecting the magnetic layer (3) is formed by vapor deposition using silicon oxide as a deposition material and a mixed gas of hydrogen and methane by cluster, ion, and beam methods.
なお、上記実施例ではアルミ合金からなるディスク状の
基板Ｉｌｌの表面にＮ１−Ｐ合金を鍍着して下地硬化層
（２：を形成するものとしたが、この下地硬化層（２１
は必ずしも形成する必要はなく省略してもよい。In the above example, the hardened base layer (2:) was formed by coating the N1-P alloy on the surface of the disk-shaped substrate Ill made of aluminum alloy.
does not necessarily need to be formed and may be omitted.
また、・上記実施例では保護層Ｉはクラスタ、イオン、
ビーム法により蒸着形成するものとしたが、真空蒸着法
、イオン、ブレーティング法あるいはスパッタリング法
により被着形成するものであってもよいことは云うまで
もない。In addition, in the above embodiment, the protective layer I contains clusters, ions,
Although the film is formed by vapor deposition using a beam method, it goes without saying that the film may be formed by a vacuum vapor deposition method, an ion method, a blating method, or a sputtering method.
この発明は以上説明したとおりディスク状の基板の表面
上に記録媒体の磁性層を形成しその上にこの磁性層を保
護する保護層を形成してこの保護層を硅素、チタン、ジ
ルコニウム、アルミニウムのいずれか単数の金属元素と
酸素と炭素と水素との化合物からなるものとしたので、
保護層の表面をヘッドが摺動しても保護層が剥４゜
離して磁性層が損傷を受けることがないと云う効果があ
る。As explained above, this invention forms a magnetic layer of a recording medium on the surface of a disk-shaped substrate, forms a protective layer thereon to protect this magnetic layer, and covers this protective layer with silicon, titanium, zirconium, or aluminum. Since it is made of a compound of any single metal element, oxygen, carbon, and hydrogen,
Even if the head slides on the surface of the protective layer, the protective layer will not peel off by 4 degrees and the magnetic layer will not be damaged.
第１図はこの発明の一実施例？示す部分断面図、第２図
は従来の磁気記録坦体を示す部分断面図である。
図において、ｆｉｌ １ｆ−ｊ基板、（２１は下地硬化
層、１３）け磁性層、（１４）は保穫層である。
なお、各図中同一符号は同一または相当部分を事す。Is Figure 1 an example of this invention? FIG. 2 is a partial cross-sectional view showing a conventional magnetic recording carrier. In the figure, (21) is a base hardening layer, (13) is a magnetic layer, and (14) is a protection layer. Note that the same reference numerals in each figure refer to the same or corresponding parts.
Claims (1)
その上にこの磁性層を保護する保護層を形成したものに
おいて、上記保護層は硅素、チタン、ジルコニウム、ア
ルミニウムのいずれか単数の金属元素と酸素と炭素と水
素との化合物からなることを特徴とする磁気記録坦体。In a device in which a magnetic layer of a recording medium is formed on the surface of a disk-shaped substrate and a protective layer is formed thereon to protect this magnetic layer, the protective layer is made of silicon, titanium, zirconium, or aluminum. A magnetic recording carrier characterized by being made of a compound of a metal element, oxygen, carbon, and hydrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25778288A JPH02103723A (en) | 1988-10-12 | 1988-10-12 | Magnetic recording carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25778288A JPH02103723A (en) | 1988-10-12 | 1988-10-12 | Magnetic recording carrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02103723A true JPH02103723A (en) | 1990-04-16 |
Family
ID=17311026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25778288A Pending JPH02103723A (en) | 1988-10-12 | 1988-10-12 | Magnetic recording carrier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02103723A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0601839A1 (en) * | 1992-12-10 | 1994-06-15 | International Business Machines Corporation | Process for coating magnetic recording device or medium |
| US5525392A (en) * | 1992-12-10 | 1996-06-11 | International Business Machines Corporation | Magnetic recording medium having a fluorinated polymeric protective layer formed by an ion beam |
| US6310293B1 (en) | 1998-12-24 | 2001-10-30 | Sumitomo Wiring Systems, Ltd. | Stacked assembly |
-
1988
- 1988-10-12 JP JP25778288A patent/JPH02103723A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0601839A1 (en) * | 1992-12-10 | 1994-06-15 | International Business Machines Corporation | Process for coating magnetic recording device or medium |
| US5525392A (en) * | 1992-12-10 | 1996-06-11 | International Business Machines Corporation | Magnetic recording medium having a fluorinated polymeric protective layer formed by an ion beam |
| US6310293B1 (en) | 1998-12-24 | 2001-10-30 | Sumitomo Wiring Systems, Ltd. | Stacked assembly |
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