JPH01224918A - Production of magnetic recording medium - Google Patents
Production of magnetic recording mediumInfo
- Publication number
- JPH01224918A JPH01224918A JP5230788A JP5230788A JPH01224918A JP H01224918 A JPH01224918 A JP H01224918A JP 5230788 A JP5230788 A JP 5230788A JP 5230788 A JP5230788 A JP 5230788A JP H01224918 A JPH01224918 A JP H01224918A
- Authority
- JP
- Japan
- Prior art keywords
- grooves
- polishing
- substrate
- recording medium
- manufacturing
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000005498 polishing Methods 0.000 claims abstract description 21
- 239000000758 substrate Substances 0.000 claims abstract description 20
- 238000007747 plating Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 22
- 238000005520 cutting process Methods 0.000 claims description 8
- 238000003754 machining Methods 0.000 abstract description 3
- 238000007772 electroless plating Methods 0.000 abstract description 2
- 229910018104 Ni-P Inorganic materials 0.000 abstract 1
- 229910018536 Ni—P Inorganic materials 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 9
- 239000010410 layer Substances 0.000 description 4
- 238000007517 polishing process Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 235000012489 doughnuts Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Landscapes
- Magnetic Record Carriers (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は磁気記録媒体の製造方法に係り、特に、ハード
ディスクの表面に微細な溝を形成するテクスチャー工程
を有する磁気記録媒体の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for manufacturing a magnetic recording medium, and particularly to a method for manufacturing a magnetic recording medium that includes a texturing process for forming fine grooves on the surface of a hard disk.
一般に、磁気記録媒体、例えばＩ＼−ドディスクはその
表面が波状に形成されて磁気ヘッドとのコンタクトスタ
ートストップ（Ｃ３Ｓ）特性、及び磁気異方性が向上さ
れている。Generally, the surface of a magnetic recording medium, such as an I/D disk, is formed in a corrugated manner to improve contact start/stop (C3S) characteristics with a magnetic head and magnetic anisotropy.
このハードディスクの製造方法は、例えば、まず、１．
４０ｍｍ厚のアルミニウム板をプレス加工によってドー
ナツ抜きにして基板を形成する。This hard disk manufacturing method includes, for example, 1.
A 40 mm thick aluminum plate is pressed into a donut to form a substrate.
そして、基板をグラインダにより研磨し、１．２４ｍｍ
の板厚に形成する。そして基板の表面にＮｔ−ｐを２０
４ｍ厚にメッキし、ポリッシュする。その後、テープテ
クスチャー工程により基板の表面に波状の溝を形成する
。このテープテクスチャー工程では、研削液を基板上に
噴出口から噴出させながら研磨テープ（＄２０００〜＃
３０００等）で大きな波長の溝を形成し、更に、研磨テ
ープ（＃４０００〜＃８０００等）で微細な溝を形成す
る。その後、基板の表面に磁性層等の記録層を形成し、
更に保護層を形成する。Then, the substrate was polished with a grinder to 1.24 mm.
Formed to a thickness of . Then, 20 Nt-p was applied to the surface of the substrate.
Plated and polished to a thickness of 4m. Thereafter, wavy grooves are formed on the surface of the substrate by a tape texturing process. In this tape texture process, polishing tape ($2,000 ~
A groove with a large wavelength is formed using a polishing tape (#4000 to #8000, etc.), and fine grooves are further formed using an abrasive tape (#4000 to #8000, etc.). After that, a recording layer such as a magnetic layer is formed on the surface of the substrate,
Furthermore, a protective layer is formed.
ところで、上記した従来技術では、２種類の研磨テープ
を使用してテクスチャー工程を行なうので、工程が複雑
となり、また、研磨テープも２種類用意しなければなら
ない、したがって、材料費がかかり、製造コストも高く
なるとともに、製造時間もかかるという問題があった。By the way, in the above-mentioned conventional technology, the texturing process is performed using two types of abrasive tapes, which complicates the process and also requires the preparation of two types of abrasive tapes, which increases material costs and increases manufacturing costs. There were problems in that the cost was high and the manufacturing time was also long.
本発明は上記した従来技術の問題点に鑑み、これを解消
すべくなされたもので、その目的は、テクスチャー工程
を１工程で行なえて製造工程を簡素化することができる
磁気記録媒体の製造方法を提供することにある。The present invention has been made in view of the above-mentioned problems of the prior art, and has been made to solve the problems.The purpose of the present invention is to perform a texturing process in one step, thereby simplifying the manufacturing process. Our goal is to provide the following.
上記した目的を達成するために１本発明は、基板をバイ
トで研磨するとともに、大きな波長の溝体り
を形成し、その後前記基板にメッキを施こしてポリッシ
ュし、その後、微細な波長の溝を形成する工程を有する
構成にしている。In order to achieve the above-mentioned objects, the present invention polishes a substrate with a cutting tool, forms grooves with a large wavelength, then plating and polishing the substrate, and then polishes the substrate with fine wavelength grooves. The structure includes a step of forming.
上記の如く構成したことにより、従来の基板の研磨工程
において、バイトにより研磨するとともに、基板表面に
大きな波長の溝が均一に形成されるので、テクスチャー
工程においては、従来の如ぐ第１段の研磨テープ加工す
る必要がなく、微細な波長の溝のみを形成する研磨テー
プ加工を行なうものである。したがって、テクスチャー
工程では第１段の研磨テープ加工を省略でき、製造工程
を簡素化できる。With the above configuration, in the conventional substrate polishing process, grooves with large wavelengths are uniformly formed on the substrate surface while polishing with a cutting tool. There is no need for polishing tape processing, and polishing tape processing is performed to form only fine wavelength grooves. Therefore, in the texturing process, the first polishing tape process can be omitted, and the manufacturing process can be simplified.
以下、本発明の一実施例を図面に基づいて説明する。 Hereinafter, one embodiment of the present invention will be described based on the drawings.
第１図は本発明による磁気記録媒体の製造方法のポリッ
シュ工程後を示す要部断面図、第２図は本発明による磁
気記録媒体の製造方法のバイト加工工程を説明する要部
断面図である。FIG. 1 is a sectional view of a main part after the polishing step of the method for manufacturing a magnetic recording medium according to the present invention, and FIG. 2 is a sectional view of a main part illustrating a cutting tool processing step of the method for manufacturing a magnetic recording medium according to the invention .
第１図において、１は基板で、本発明による磁気記録媒
体、例えばハードディスクの製造方法により加工され、
この基板１の表面には大きな波長の溝２・２・・・が形
成されている。In FIG. 1, reference numeral 1 denotes a substrate, which is processed by the method for manufacturing a magnetic recording medium, such as a hard disk, according to the present invention.
Grooves 2, 2, . . . with large wavelengths are formed on the surface of this substrate 1.
次にハードディスクの製造方法を説明する。Next, a method for manufacturing a hard disk will be explained.
まず、１．４０ｍｍ厚のアルミニウム板をプレス加工に
よってドーナツ抜きにして基板１が形成される。そして
、基板１はバイト（例えばチャンファ）によって研磨加
工が行なわれ、１．２４ｍｍの板厚に形成される。この
バイト加工の際、基板１の表面には、第２図に示すよう
にバイト（図示せず）によって波長すが１５〜２０４ｍ
、振幅ａ、ａ？５〜１０ｇｍの大きな波長の溝２・２・
・・が均一に形成される。その後、Ｎ１−Ｐ無電解メッ
キが行なわれ、約２０１Ｌｍの厚膜が形成され、ポリッ
シュが行なわれる。すると、第２図に示した溝２争２・
・・の振幅＆＋ は溝２φ２間の突部が削られて０．
０５〜０．１５ルｍと小さくなり、従来、テクスチャー
工程で第１段の研磨テープにより形成されていた大きな
波長の溝２・２・・・が形成されることになる。その後
、研磨テープ（＃４０００〜＃８０００）によるテクス
チャー工程により、波長ＩＩＬｍ、振幅０ 、 ＯＩ
ＩＬｍ以下の微細な溝（図示せず）が形成される。その
後、基板１の表面に磁性層等の記録層を形成し、更に保
護層を形成してハードディスクが得られる。First, a substrate 1 is formed by punching out a donut from a 1.40 mm thick aluminum plate by press working. Then, the substrate 1 is polished using a cutting tool (for example, a chamfer) to have a thickness of 1.24 mm. During this cutting process, as shown in FIG.
, amplitude a, a? 5-10gm large wavelength grooves 2, 2,
... is formed uniformly. Thereafter, N1-P electroless plating is performed to form a thick film of about 201 Lm, and polishing is performed. Then, the groove 2 race 2 shown in Figure 2.
The amplitude &+ of ... is 0.
The grooves 2, 2, etc., with large wavelengths, which were conventionally formed by the first stage polishing tape in the texturing process, are formed. After that, a texturing process using an abrasive tape (#4000 to #8000) is performed to obtain wavelength IILm, amplitude 0, and OI.
A fine groove (not shown) smaller than ILm is formed. Thereafter, a recording layer such as a magnetic layer is formed on the surface of the substrate 1, and a protective layer is further formed to obtain a hard disk.
このように構成された上記実施例にあっては、バイト加
工によって基板ｌの表面の研磨とともに大きな波長の溝
２−２・・・が均一に形成され、この溝２・２・・・に
メッキを施こしてポリッシュすることにより、大きな波
長の溝が均一に形成されるので、従来の如く第１段の研
磨テープによる加工をする必要がなく、研磨テープは１
種類で済み、研磨テープによる加工工程を簡素化でき、
かつ、従来の第１段の研磨テープによる加工はバイト加
工及びメッキ、ポリッシュ工程によって行なわれること
になり、製造工程を簡素化できて、テクスチャー工程は
完全に行なえる。また、研磨テープは１種類で済むので
、製造具の用意が簡単になり、かつ、！Ｖ造時間も短縮
化でき、コストが低減される。In the above-mentioned embodiment configured in this way, grooves 2-2 with large wavelengths are uniformly formed while polishing the surface of the substrate l by machining with a cutting tool, and these grooves 2-2 are plated. By applying and polishing, grooves with large wavelengths are uniformly formed, so there is no need to perform processing with the first stage polishing tape as in the conventional method, and the polishing tape can be used in one step.
It is possible to simplify the processing process using polishing tape,
Moreover, the conventional first-stage polishing tape processing is performed by bit processing, plating, and polishing processes, so that the manufacturing process can be simplified and the texturing process can be completely performed. Also, since you only need one type of abrasive tape, it is easier to prepare the manufacturing tools, and! V manufacturing time can also be shortened and costs can be reduced.
以上説明したように、本発明によれば、大きな波長の溝
を、バイト加工、メッキ、及びポリッシュによって均一
に形成しているので、従来の如く研磨テープによる加工
を２段階する必要がなくなり、テクスチャー工程を簡素
化でき、製造時間も短縮化でき、製造コストを低減でき
る。As explained above, according to the present invention, grooves with large wavelengths are uniformly formed by bit processing, plating, and polishing, so there is no need for two stages of processing using an abrasive tape as in the conventional method, and texture The process can be simplified, manufacturing time can be shortened, and manufacturing costs can be reduced.
図面は全て本発明の一実施例を示し、第１図は本発明に
よる磁気記録媒体の製造方法のポリッシュ工程後を説明
する要部断面図、第２図は本発明による磁気記録媒体の
製造方法のバイト加工工程を説明する要部断面図である
。
１・・・基板 ２・・・溝
第１図The drawings all show one embodiment of the present invention, and FIG. 1 is a cross-sectional view of a main part explaining the post-polishing process of the method for manufacturing a magnetic recording medium according to the present invention, and FIG. 2 is a method for manufacturing a magnetic recording medium according to the present invention. FIG. 2 is a cross-sectional view of a main part explaining a cutting tool machining process. 1...Substrate 2...Groove Figure 1
Claims (1)
溝を形成し、その後前記基板にメッキを施こしてポリッ
シュし、その後、微細な波長の溝を形成する工程を有す
ることを特徴とする磁気記録媒体の製造方法。(1) A magnetic device characterized by having the steps of polishing a substrate with a cutting tool, forming grooves with a large wavelength, then plating and polishing the substrate, and then forming grooves with a fine wavelength. A method for manufacturing a recording medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5230788A JPH01224918A (en) | 1988-03-04 | 1988-03-04 | Production of magnetic recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5230788A JPH01224918A (en) | 1988-03-04 | 1988-03-04 | Production of magnetic recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01224918A true JPH01224918A (en) | 1989-09-07 |
Family
ID=12911129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5230788A Pending JPH01224918A (en) | 1988-03-04 | 1988-03-04 | Production of magnetic recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01224918A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03141016A (en) * | 1989-10-25 | 1991-06-17 | Fujitsu Ltd | Magnetic recording medium |
-
1988
- 1988-03-04 JP JP5230788A patent/JPH01224918A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03141016A (en) * | 1989-10-25 | 1991-06-17 | Fujitsu Ltd | Magnetic recording medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH01224918A (en) | Production of magnetic recording medium | |
| JPS61106207A (en) | Manufacture of wafer | |
| JPS61172220A (en) | Production of disk substrate | |
| JPS61114813A (en) | Cutting method | |
| JPS58194164A (en) | Manufacture of magnetic head | |
| JP2964722B2 (en) | Manufacturing method of floating type thin film magnetic head | |
| JPH02179920A (en) | Production of substrate for memory disk | |
| JPS6151335B2 (en) | ||
| JPH07121831A (en) | Production of thin-film magnetic head | |
| JPS623412A (en) | Lapping device | |
| JPS6377651A (en) | Production of magnetic head | |
| JPH07326034A (en) | Method for molding magnetic head slider | |
| JPH05225511A (en) | Production of magnetic head | |
| JPH06314409A (en) | Method for polishing magnetic head | |
| JPH01260628A (en) | Production of aluminum substrate for memory disk | |
| JPS6076957A (en) | Manufacture of magnetic disc substrate | |
| JPS60247824A (en) | Production of disk substrate | |
| JPH0612663A (en) | Production of magnetic disk | |
| JPH048469A (en) | Cutting method for fragile material | |
| JPH04195779A (en) | Manufacture of magnetic head slider | |
| JPS5818688B2 (en) | Manufacturing method of multi-head core slider for magnetic disks | |
| JPH0145136B2 (en) | ||
| JPS63804A (en) | Manufacture of magnetic head | |
| JPH05282632A (en) | Formation of round shape | |
| JPH02121897A (en) | Manufacture of membrane magnetic transducer |