JP2001516115A - Disk and drive system and method with carbon overcoat layer for loading / unloading applications - Google Patents
Disk and drive system and method with carbon overcoat layer for loading / unloading applicationsInfo
- Publication number
- JP2001516115A JP2001516115A JP2000510133A JP2000510133A JP2001516115A JP 2001516115 A JP2001516115 A JP 2001516115A JP 2000510133 A JP2000510133 A JP 2000510133A JP 2000510133 A JP2000510133 A JP 2000510133A JP 2001516115 A JP2001516115 A JP 2001516115A
- Authority
- JP
- Japan
- Prior art keywords
- platter
- storage medium
- data
- thickness
- data storage
- 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
- 238000000034 method Methods 0.000 title claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims description 7
- 229910052799 carbon Inorganic materials 0.000 title claims description 7
- 238000013500 data storage Methods 0.000 claims description 33
- 238000003860 storage Methods 0.000 claims description 15
- 239000011248 coating agent Substances 0.000 claims description 11
- 238000000576 coating method Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 9
- 239000000758 substrate Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims 1
- 229910000990 Ni alloy Inorganic materials 0.000 claims 1
- 229910052804 chromium Inorganic materials 0.000 claims 1
- 239000011651 chromium Substances 0.000 claims 1
- ZGDWHDKHJKZZIQ-UHFFFAOYSA-N cobalt nickel Chemical compound [Co].[Ni].[Ni].[Ni] ZGDWHDKHJKZZIQ-UHFFFAOYSA-N 0.000 claims 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims 1
- 229920000642 polymer Polymers 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 abstract 2
- 238000009472 formulation Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004886 head movement Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/0014—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture record carriers not specifically of filamentary or web form
- G11B23/0021—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture record carriers not specifically of filamentary or web form discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/72—Protective coatings, e.g. anti-static or antifriction
- G11B5/727—Inorganic carbon protective coating, e.g. graphite, diamond like carbon or doped carbon
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
- G11B5/82—Disk carriers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
- G11B5/8404—Processes or apparatus specially adapted for manufacturing record carriers manufacturing base layers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10582—Record carriers characterised by the selection of the material or by the structure or form
- G11B11/10584—Record carriers characterised by the selection of the material or by the structure or form characterised by the form, e.g. comprising mechanical protection elements
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/04—Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/02—Driving or moving of heads
- G11B21/12—Raising and lowering; Back-spacing or forward-spacing along track; Returning to starting position otherwise than during transducing operation
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/0057—Intermediate mediums, i.e. mediums provided with an information structure not specific to the method of reproducing or duplication such as matrixes for mechanical pressing of an information structure ; record carriers having a relief information structure provided with or included in layers not specific for a single reproducing method; apparatus or processes specially adapted for their manufacture
- G11B23/0064—Intermediate mediums, i.e. mediums provided with an information structure not specific to the method of reproducing or duplication such as matrixes for mechanical pressing of an information structure ; record carriers having a relief information structure provided with or included in layers not specific for a single reproducing method; apparatus or processes specially adapted for their manufacture mediums or carriers characterised by the selection of the material
- G11B23/0071—Intermediate mediums, i.e. mediums provided with an information structure not specific to the method of reproducing or duplication such as matrixes for mechanical pressing of an information structure ; record carriers having a relief information structure provided with or included in layers not specific for a single reproducing method; apparatus or processes specially adapted for their manufacture mediums or carriers characterised by the selection of the material additional layers for lubrication or wear protection
Abstract
(57)【要約】 オーバーコート層を有するデータ記録プラッター（１０２）、及び、プラッターのロード領域（１１６）における厚みが増しているオーバーコート層を形成する行程を含むデータ記録プラッターのためのオーバーコート層の製法。厚みを増したオーバーコート層の厚み部は、プラッターの外周部（２００）に配置される。前記の厚みは、プラッターの中央領域（２０２）からプラッターの外周端にかけて徐々に分厚く設けられている。分厚く設けられたオーバーコートの厚みは、例えば、ヘッドのロード及び／又はアンロード時における記録ヘッド（１１２）とプラッター表面との接触に対して、プラッターの記録層の保護を強化している。 (57) Abstract: An overcoat for a data recording platter including a step of forming a data recording platter (102) having an overcoat layer and an overcoat layer having an increased thickness in a load area (116) of the platter. Formulation of layers. The thickened portion of the overcoat layer having the increased thickness is disposed on the outer peripheral portion (200) of the platter. The thickness is gradually increased from the central area (202) of the platter to the outer peripheral end of the platter. The thicker overcoat thickness enhances the protection of the recording layer of the platter, for example, against contact between the recording head (112) and the platter surface during loading and / or unloading of the head.
Description
【０００１】[0001]
本発明は、データ記憶装置及びシステム、並びにこれを製造し使用するための
方法に関し、より好ましい実施の形態においては、装置のロード領域におけるオ
ーバーコートの厚みが増しているデータ記憶装置に関する。The present invention relates to data storage devices and systems, and methods for making and using the same, and in a more preferred embodiment, to a data storage device having an increased overcoat thickness in the load area of the device.
【０００２】[0002]
最近のコンピュータは、電子情報を記憶するために、例えばコンピュータデー
タファイルやプログラムファイル等の様々な形態の持続性記憶システムを使用し
ている。データ記憶システムの一般的な形態の１にディスクドライブがある。デ
ィスクドライブの主な構成要素は、プラッター即ちディスクと、ヘッドである。
データは、電磁気的、光学的又は磁気光学的にプラッター上に記録される。ヘッ
ドは、プラッターからのデータの読出し、及び／又は、プラッタへのデータの書
込みを行う。Modern computers use various forms of persistent storage systems, such as computer data files and program files, to store electronic information. One common form of data storage system is a disk drive. The main components of a disk drive are a platter or disk and a head.
Data is recorded electromagnetically, optically or magneto-optically on the platter. The head reads data from the platter and / or writes data to the platter.
【０００３】 プラッターは、基板層と、記録層（例えば、磁気層）と、オーバーコート層と
、潤滑層とからなる。プラッターの電子情報記憶容量はオーバーコート層の厚み
に一部依存している。より薄くコーティングを行うことにより、一般的には、プ
ラッター１枚あたりの記憶容量はより増大する。その結果、ある製品ではオーバ
ーコート層の厚みが減ぜられている傾向にある。[0003] The platter includes a substrate layer, a recording layer (for example, a magnetic layer), an overcoat layer, and a lubricating layer. The electronic information storage capacity of the platter partly depends on the thickness of the overcoat layer. By applying a thinner coating, the storage capacity per platter generally increases. As a result, in some products, the thickness of the overcoat layer tends to be reduced.
【０００４】 ヘッドに関しては、ヘッドは、ディスクドライブが作動している間はプラッタ
ーの記録面に近接して配置されている。ディスクドライブが作動モードに入る直
前に、ヘッドは記録面から位置ずれした位置から記録面に近接した位置へ移動す
る。この移動動作時に、ヘッドはプラッターのロード領域を近接通過する。この
ロード作動中にプラッターのロード領域に間欠的な接触が起っていることが実験
的証拠により明かになっている。With respect to the head, the head is located close to the recording surface of the platter while the disk drive is operating. Immediately before the disk drive enters the operation mode, the head moves from a position shifted from the recording surface to a position close to the recording surface. During this movement, the head passes close to the platter load area. Experimental evidence has shown that intermittent contact has occurred in the load area of the platter during this loading operation.
【０００５】 そこで、本技術分野においては、ロード作動中に損傷を受けないデータ記憶媒
体及びシステムが要求されている。Therefore, there is a need in the art for a data storage medium and system that is not damaged during the loading operation.
【０００６】[0006]
上述の従来技術に課せられる制約を克服するため、及び本明細書を読み進めて
理解していくにしたがって明かにされる他の制約を克服するため、本明細書は、
データ記憶媒体及びシステム、並びにその製造方法を開示する。データシステム
は、記憶媒体からデータを読出すための、及び／又は、記憶媒体にデータを書込
むための少なくとも１つのヘッドを有する。データ記憶媒体は、データを記憶す
るための少なくとも１つの記録面とロード領域とを備える少なくとも１つのプラ
ッターを有する。In order to overcome the limitations imposed on the prior art described above, and to overcome other limitations that will become apparent as the specification is read and understood,
A data storage medium and system, and a method of manufacturing the same, are disclosed. The data system has at least one head for reading data from the storage medium and / or writing data to the storage medium. The data storage medium has at least one platter provided with at least one recording surface for storing data and a load area.
【０００７】 好ましい実施の形態においては、プラッターの記録面は、基板層と、データ記
録層と、オーバーコート層とを有する。データ記録層は、基板層とオーバーコー
ト層との間に配置され、データを記憶するための領域を規定している。[0007] In a preferred embodiment, the recording surface of the platter has a substrate layer, a data recording layer, and an overcoat layer. The data recording layer is disposed between the substrate layer and the overcoat layer, and defines an area for storing data.
【０００８】 オーバーコート層は、ヘッド−記録層間の相互情報伝達に対して実質的に透過
性を示すコート材料からなる。オーバーコート層は少なくとも２つの厚みを有し
ている。ある好ましい実施の形態では、オーバーコート層の第１の厚みは、デー
タを記憶するためのデータ記録層の領域の少なくとも一部を覆い、第２の厚みは
ロード領域を覆う。第２の厚みは第１の厚みよりも分厚い。例えば、ある実施形
態では、明確に区分される２つの厚みを含み、第１の厚みは記録層の略全域を覆
い、より分厚い第２の厚みはロード領域を覆っている。また、他の実施形態では
、記録層からロード領域に従って徐々に厚みが増している。The overcoat layer is made of a coating material that is substantially transparent to mutual information transmission between the head and the recording layer. The overcoat layer has at least two thicknesses. In a preferred embodiment, the first thickness of the overcoat layer covers at least a part of an area of the data recording layer for storing data, and the second thickness covers the load area. The second thickness is thicker than the first thickness. For example, in some embodiments, including two distinct thicknesses, the first thickness covers substantially the entire area of the recording layer, and the thicker second thickness covers the load area. In another embodiment, the thickness gradually increases from the recording layer to the load area.
【０００９】 本発明を特徴付ける新しい多様な利点及び特徴は、ここに伴いその一部を構成
する特許請求の範囲において特に特定されている。しかしながら、本発明及びそ
の有利な効果のより深い理解に供するため、本発明の好ましい実施形態に基づく
特定の実施例について図示及び説明されている、ここの一部を構成する図面及び
それに伴う記載事項が参照されよう。[0009] A variety of new advantages and features which characterize the present invention are particularly pointed out in the claims hereof that form a part hereof. However, in order to provide a better understanding of the present invention and its advantageous effects, certain embodiments based on preferred embodiments of the present invention are shown and described herein, and are hereby incorporated by reference. Will be referred to.
【００１０】[0010]
好適な実施の形態についての以下の説明においては、ここの一部を構成する添
付図面が参照されるが、この添付図面には、本発明を実施するための特定の実施
形態が図示されている。他の実施形態による実施及び構造上の変更は、本発明の
好適な実施形態の範囲内で可能なことは了解されよう。In the following description of the preferred embodiments, reference is made to the accompanying drawings that form a part hereof, and in which is shown by way of illustration specific embodiments for practicing the invention. . It will be appreciated that implementations and structural changes according to other embodiments are possible within the scope of the preferred embodiments of the present invention.
【００１１】 （概要） 本発明の好適な実施形態は、ドライブプラッターの表面をコーディングするた
めの方法及び装置に関し、特に、プラッターのロード領域におけるオーバーコー
ト層の厚みの増大に関する。SUMMARY Preferred embodiments of the present invention relate to a method and apparatus for coding the surface of a drive platter, and more particularly to increasing the thickness of an overcoat layer in the load area of a platter.
【００１２】 （ハードウェアー環境） 図１Ａは、本発明の実施形態を実施するために使用可能である好例なハードド
ライブシステムを示している。本実施環境においては、ハードドライブシステム
１００は、少なくとも１つのデータ記憶媒体１０２と、ヘッド構造体１０４と、
位置決めドライブ装置１０６と、位置決めドライブ装置１０６をヘッド構造体１
０４に接続するための機械的連結１０８と、を備える。ヘッド１１２はヘッド構
造体アーム１１３によって支持されており、ヘッド構造体１０４が位置決めドラ
イブ装置１０６によって駆動されることによりヘッド１１２は各データ記憶媒体
１０２の記録面に対する選択位置へ移動される。記録ないし読取り動作時には、
各ヘッド１１２は、対応するデータ記憶媒体１０２のうちの関連付けられた記録
面に近接して配置され、当該関連付けられた記録面に対する複数の信号の読出し
、及び／又は、書込みのタスクを実行している。図１Ａに示す実施の形態では、
データ記憶媒体１０２は磁気記録プラッターを含んでいる。但し、他の実施形態
により、配置されたヘッド１１２と作用するデータ記憶媒体１０２であれば他の
態様のものを用いてもよい。例えば、光学的記憶媒体、磁気光学的媒体等が挙げ
られるが、これらに限られるものではない。Hardware Environment FIG. 1A illustrates an exemplary hard drive system that can be used to implement embodiments of the present invention. In the present implementation, the hard drive system 100 includes at least one data storage medium 102, a head structure 104,
The positioning drive device 106 and the head structure 1
A mechanical connection 108 for connecting to The head 112 is supported by a head structure arm 113, and the head structure 104 is driven by the positioning drive device 106 to move the head 112 to a selected position with respect to the recording surface of each data storage medium 102. During recording or reading operation,
Each head 112 is disposed proximate to an associated recording surface of the corresponding data storage medium 102 and performs a task of reading and / or writing a plurality of signals to the associated recording surface. I have. In the embodiment shown in FIG. 1A,
Data storage medium 102 includes a magnetic recording platter. However, according to other embodiments, another mode of the data storage medium 102 that works with the arranged head 112 may be used. Examples include, but are not limited to, optical storage media, magneto-optical media, and the like.
【００１３】 図１Ａに示す実施形態においては、マルチトラック磁気記録プラッターである
３枚のデータ記憶媒体１０２は、単一のスピンドル１１１に支持されている。各
プラッターは、基板層と、記録層と、オーバーコート層と、潤滑層とを備える。
当該記録層は磁気記録材料を含むところ、上記実施形態は磁気記録媒体を含むこ
ととなる。In the embodiment shown in FIG. 1A, three data storage media 102, which are multitrack magnetic recording platters, are supported on a single spindle 111. Each platter includes a substrate layer, a recording layer, an overcoat layer, and a lubrication layer.
Where the recording layer includes a magnetic recording material, the above embodiment includes a magnetic recording medium.
【００１４】 上記実施形態における各プラッターは、複数のトラック１１４のうちで関係付
けられたヘッド１１２によってデータの書込み、及び／又は、読出しが行われる
２つの記録面（両面）を有する。しかしながら、データ記憶媒体１０２は、片面
データ記憶媒体を含むがこれに限られない適切なデータ記憶媒体のいずれを用い
てもよい。加えて、図１Ａでは３枚のプラッターが示されているが、他の実施形
態により、いずれの適切な枚数のデータ記憶媒体１０２を用いてもよい。Each of the platters in the above embodiment has two recording surfaces (both surfaces) on which data is written and / or read by the associated head 112 among the plurality of tracks 114. However, data storage medium 102 may use any suitable data storage medium, including but not limited to single-sided data storage media. In addition, although three platters are shown in FIG. 1A, any suitable number of data storage media 102 may be used in accordance with other embodiments.
【００１５】 図１Ｂは記憶媒体１０２に対するヘッド１１２の動作を示している。好ましい
実施の形態において、ヘッド１１２は、ディスクドライブ作動中は記憶媒体１０
２の記録面に近接して配置されている。ディスクドライブが作動モードに入る直
前にヘッド１１２は記録面から位置ずれした位置から記録面に近接した位置へと
移動する。この移動動作中に、ヘッド１１２は記憶媒体１０２のロード領域１１
６を近接通過する。本発明の好ましい実施の形態においては、ロード領域は記憶
媒体１０２の外側端に配置されている。但し、ロード領域を記憶媒体１０２の中
央領域に配置することも、記憶媒体１０２の中間領域に配置することも可能であ
る。FIG. 1B shows the operation of the head 112 with respect to the storage medium 102. In a preferred embodiment, the head 112 controls the storage medium 10 during operation of the disk drive.
No. 2 recording surface. Immediately before the disk drive enters the operation mode, the head 112 moves from a position shifted from the recording surface to a position close to the recording surface. During this moving operation, the head 112 moves the load area 11 of the storage medium 102.
Pass through 6 closely. In a preferred embodiment of the present invention, the load area is located at the outer edge of the storage medium 102. However, the load area can be arranged in the central area of the storage medium 102 or in the middle area of the storage medium 102.
【００１６】 当業者であれば、本発明が図１及び１Ａに示された実施形態に制限されるもの
でないことは理解されよう。当業者であれば、本発明の範囲内で他の代替的なハ
ードウェアー環境を使用することが可能であることも理解されよう。Those skilled in the art will appreciate that the present invention is not limited to the embodiments shown in FIGS. 1 and 1A. Those skilled in the art will also appreciate that other alternative hardware environments can be used within the scope of the present invention.
【００１７】 （オーバーコート層） 本発明の好適な実施の形態においては、オーバーコート層は、プラッターのロ
ード領域の保護を強化するように形成する。ロード領域におけるオーバーコート
層の厚みは、記録層上に形成されるその厚みに比較して肉厚とする。但し、肉厚
とされたオーバーコート層の厚みはヘッドの移動高さ（ｆｌｉｇｈｔ ｈｅｉｇ
ｈｔ）と比較して小さいものである。従って、隣接するトラックでの移動高さを
変える必要はない。(Overcoat Layer) In a preferred embodiment of the present invention, the overcoat layer is formed so as to enhance protection of the load area of the platter. The thickness of the overcoat layer in the load region is made thicker than the thickness formed on the recording layer. However, the thickness of the thick overcoat layer depends on the moving height of the head (flight height).
ht). Therefore, it is not necessary to change the moving height on the adjacent track.
【００１８】 ロード領域は、概してプラッター１０２の外径２００に沿って配置する。しか
しながら、プラッター１０２の内径２０２側に配置することもできるし、プラッ
ター１０２の中間径２０４に配置することもできる。一般的に、万全を期するた
めに、プラッター１０２のロード領域へのデータ書込みは行わない。The load area is generally located along the outer diameter 200 of the platter 102. However, it can be arranged on the inner diameter 202 side of the platter 102 or can be arranged on the intermediate diameter 204 of the platter 102. Generally, data is not written to the load area of the platter 102 for the sake of completeness.
【００１９】 本発明の他の実施の形態においては、オーバーコート層はプラッター１０２の
内径２０２からプラッター１０２の外径にしたがって徐々に肉厚に設け、その結
果、プラッター１０２の外径２００はプラッター１０２の内径２０２よりも分厚
くなっている。In another embodiment of the present invention, the overcoat layer is provided gradually thicker from the inner diameter 202 of the platter 102 to the outer diameter of the platter 102, so that the outer diameter 200 of the platter 102 Is thicker than the inner diameter 202 of.
【００２０】 本発明の好適な実施の形態についての以上の記述は、図示及び説明を目的にな
されたものである。そのため、本発明を、上記に徹底するべきものではなく、開
示された詳細な態様に限定するものでもない。上述の開示内容に照らし合わて多
様な修飾や変化を加えることは可能である。本発明の範囲は上記の詳細な説明に
よって限られるものではなく、添付したクレームによって決定されるものである
。The foregoing description of the preferred embodiment of the invention has been presented for purposes of illustration and description. As such, the invention is not to be exhaustive, nor is it limited to the specific details disclosed. Various modifications and changes can be made in light of the above disclosure. The scope of the present invention is not limited by the above detailed description, but is determined by the appended claims.
【図１Ａ】 本発明の好ましい実施形態を実施するための好例なハードドライブシステムを
示す。FIG. 1A illustrates an exemplary hard drive system for implementing a preferred embodiment of the present invention.
【図１Ｂ】 ロード作動時におけるヘッド移動を示す平面図である。FIG. 1B is a plan view showing head movement during a loading operation.
【図２】 本発明の好ましい実施形態における２つの厚みを有する炭素オーバーコートを
示す平面図である。FIG. 2 is a plan view showing a carbon overcoat having two thicknesses in a preferred embodiment of the present invention.
【図３】 本発明の好ましい実施形態における２つの厚みを有する炭素オーバーコートを
示す側面図である。FIG. 3 is a side view showing a carbon overcoat having two thicknesses in a preferred embodiment of the present invention.
【図４】 本発明の別の実施形態における徐々に厚みを増していく炭素オーバーコートを
示す側面図である。FIG. 4 is a side view showing a gradually increasing carbon overcoat in another embodiment of the present invention.
【図５】 本発明の別の実施形態における、プラッターの特定の位置で徐々に厚みを増し
ていく炭素オーバーコートを示す側面図である。FIG. 5 is a side view of a carbon overcoat that gradually increases in thickness at a particular location on the platter in another embodiment of the present invention.
Claims (15)
くとも１つのプラッターを備え、 上記プラッターは上記ロード領域をコートする手段を備える、データシステム
とともに使用するためのデータ記憶媒体。1. A data storage medium for use with a data system, comprising at least one platter having a recording surface and a load area for storing data, said platter comprising means for coating said load area.
い、及び／又はデータ記憶媒体へのデータの書込みを行うための少なくとも１つ
のヘッドを有し、このヘッドは上記データ記憶媒体から位置ずれする位置から上
記記憶媒体に近接する位置へ移動する、データシステムとともに使用するための
データ記憶媒体であって、 データを記憶するための記録面及びロード領域を有する少なくとも１つのプラ
ッターを備え、 このプラッターの上記記録面は、基板層と、データ記録層と、オーバーコート
層とを備え、前記データ記録層は基板層とオーバーコート層の間に配置されてデ
ータ記憶領域をなし、 上記オーバーコート層は、少なくとも２つの厚みを有するコート材料を備え、
第１の厚みはデータを記憶するための上記データ記録層の領域を被覆し、第２の
厚みはロード領域を被覆し、第２の厚みは第１の厚みよりも分厚く、 上記ロード領域は、上記記録面から位置ずれした位置と上記記録面に近接した
位置との間を移動する間に当該ロード領域を通過する少なくとも１つのヘッドに
近接するプラッター上の領域である、データ記憶媒体。2. The apparatus according to claim 1, further comprising: at least one head for reading and / or recording data from / to the data storage medium and / or writing data to / from the data storage medium, wherein the head includes at least one head. A data storage medium for use with a data system, moving from a misaligned position to a position close to the storage medium, comprising at least one platter having a recording surface and a load area for storing data, The recording surface of the platter includes a substrate layer, a data recording layer, and an overcoat layer, and the data recording layer is disposed between the substrate layer and the overcoat layer to form a data storage area; The layer comprises a coating material having at least two thicknesses;
The first thickness covers an area of the data recording layer for storing data, the second thickness covers a load area, the second thickness is thicker than the first thickness, A data storage medium, which is an area on a platter close to at least one head passing through the load area while moving between a position shifted from the recording surface and a position close to the recording surface.
ーの外側端に配置される、請求項２に記載のデータ記憶媒体。3. The data storage medium of claim 2, wherein the platter has an outer edge, and wherein the load area is located at an outer edge of the platter.
ターの中央領域に配置される、請求項２に記載のデータ記憶媒体。4. The data storage medium of claim 2, wherein the platter has a central area, and the load area is located in the central area of the platter.
料であり、前記材料は上記プラッターの剛性を向上する、請求項２に記載のデー
タ記憶媒体。5. The data storage medium of claim 2, wherein said coating material is a diamond-like carbon (DLC) material, said material improving the rigidity of said platter.
記載のデータ記憶媒体。6. The data storage medium according to claim 2, wherein said data recording layer comprises a ferric oxide coat.
、請求項２に記載のデータ記憶媒体。7. The data storage medium according to claim 2, wherein said data recording layer comprises a cobalt-nickel alloy coat.
載のデータ記憶媒体。8. The data storage medium according to claim 2, wherein the data recording layer has a chromium-based coat.
のデータ記憶媒体。9. The data storage medium according to claim 2, wherein said data recording layer comprises a polymer coat.
記プラッターのロード領域につれて徐々に分厚くなるコート材料を更に備え、上
記プラッターのロード領域におけるオーバーコート層は上記プラッターの記録面
におけるオーバーコート層よりも分厚い、請求項２に記載のデータ記憶媒体。10. The overcoat layer further includes a coating material that gradually increases in thickness from the recording surface of the platter to the load area of the platter, and the overcoat layer in the load area of the platter has an overcoat on the recording surface of the platter. 3. The data storage medium according to claim 2, wherein the data storage medium is thicker than the coat layer.
行い、及び／又はデータ記憶媒体に対するデータの書込みを行うための少なくと
も１つのヘッドとともに使用し、このヘッドは上記データ記憶媒体から位置ずれ
する位置から上記記憶媒体に近接する位置へ移動する、記憶媒体の製造方法であ
って、 記録層と、中央領域と、外側端と、ロード領域とを有するプラッターを設け、
上記ロード領域は、上記記録面から位置ずれした位置と上記記録面に近接した位
置との間を移動する間にロード領域を通過する少なくとも１つのヘッドに近接す
るプラッター上の領域である、ステップと、 上記プラッターの記録層をオーバーコート材料が少なくとも２つの厚みを有す
るようにオーバーコート材料でコートし、第１の厚みは上記プラッターのデータ
を記憶するための領域を被覆し、第２の厚みはロード領域を被覆し、第２の厚み
は第１の厚みよりも分厚い、ステップと、を含む記憶媒体の製造方法。11. Use with at least one head for reading and / or recording data from and / or writing data to a data storage medium, the head being located from the data storage medium. Moving from a shifted position to a position close to the storage medium, a method for manufacturing a storage medium, comprising: providing a platter having a recording layer, a central area, an outer end, and a load area;
The load area is an area on a platter close to at least one head passing through the load area while moving between a position shifted from the recording surface and a position close to the recording surface; and The recording layer of the platter is coated with an overcoat material so that the overcoat material has at least two thicknesses, a first thickness covers an area for storing data of the platter, and a second thickness is Covering the load region, wherein the second thickness is greater than the first thickness.
端に形成する、請求項１１に記載の方法。12. The method of claim 11, wherein said coating step forms a second thickness at an outer edge of the platter.
領域に形成する、請求項１１に記載の方法。13. The method of claim 11, wherein said coating step forms a second thickness in a central region of the platter.
モンドライクカーボン（ＤＬＣ）でコートするステップを更に含み、ＤＬＣは少
なくとも２つの厚みを有し、第１の厚みはデータを記憶するためのプラッターの
領域を被覆し、第２の厚みはロード領域を被覆し、第２の厚みは第１の厚みより
も分厚い、請求項１１に記載の方法。14. The step of coating further comprises the step of coating the recording layer of the platter with diamond-like carbon (DLC), the DLC having at least two thicknesses, the first thickness being for storing data. 12. The method of claim 11, wherein the second thickness covers the load area and the second thickness is greater than the first thickness.
ら当該プラッターの外側端につれて徐々に分厚くなるオーバーコート層を形成す
るステップを含み、プラッターの外側端はプラッターの中央領域よりも分厚くな
る、請求項１１に記載の方法。15. The step of coating includes forming an overcoat layer that is gradually thicker from a central region of the platter to an outer edge of the platter, the outer edge of the platter being thicker than the central region of the platter. The method of claim 11.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US5591397P | 1997-08-18 | 1997-08-18 | |
| US60/055,913 | 1997-08-18 | ||
| PCT/US1998/009901 WO1999009548A1 (en) | 1997-08-18 | 1998-05-22 | Disk and drive system and methods with carbon overcoat for load/unload applications |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001516115A true JP2001516115A (en) | 2001-09-25 |
Family
ID=22000976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000510133A Pending JP2001516115A (en) | 1997-08-18 | 1998-05-22 | Disk and drive system and method with carbon overcoat layer for loading / unloading applications |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2001516115A (en) |
| KR (1) | KR20010023016A (en) |
| GB (1) | GB2343988B (en) |
| WO (1) | WO1999009548A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007265549A (en) * | 2006-03-29 | 2007-10-11 | Hoya Corp | Magnetic recording disk and its manufacturing method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4529659A (en) * | 1983-11-05 | 1985-07-16 | Nippon Telegraph & Telephone Public Corporation | Magnetic recording member and process for manufacturing the same |
| JPS6168725A (en) * | 1984-09-10 | 1986-04-09 | Shin Etsu Chem Co Ltd | Magnetic recording medium and its production |
| US5202863A (en) * | 1990-09-11 | 1993-04-13 | Matsushita Electric Industrial Co., Ltd. | Magneto-optical disk unit compatible with different two types of magneto-optical disks and a magnetic-field generator suitable thereof |
| US5324593A (en) * | 1992-02-18 | 1994-06-28 | Hmt Technology Corporation | Thin film medium with layered film gradient |
| US5462784A (en) * | 1994-11-02 | 1995-10-31 | International Business Machines Corporation | Fluorinated diamond-like carbon protective coating for magnetic recording media devices |
| US5520981A (en) * | 1995-04-24 | 1996-05-28 | Hmt Technology Corporation | Magnetic recording disk with overcoat thickness gradient between a data zone and a landing zone |
-
1998
- 1998-05-22 KR KR1020007001624A patent/KR20010023016A/en not_active Application Discontinuation
- 1998-05-22 JP JP2000510133A patent/JP2001516115A/en active Pending
- 1998-05-22 GB GB0002267A patent/GB2343988B/en not_active Expired - Fee Related
- 1998-05-22 WO PCT/US1998/009901 patent/WO1999009548A1/en not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007265549A (en) * | 2006-03-29 | 2007-10-11 | Hoya Corp | Magnetic recording disk and its manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20010023016A (en) | 2001-03-26 |
| GB2343988A (en) | 2000-05-24 |
| WO1999009548A1 (en) | 1999-02-25 |
| GB0002267D0 (en) | 2000-03-22 |
| GB2343988B (en) | 2002-01-09 |
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