JPS6453343A - Production of perpendicular magnetic recording medium - Google Patents
Production of perpendicular magnetic recording mediumInfo
- Publication number
- JPS6453343A JPS6453343A JP20914087A JP20914087A JPS6453343A JP S6453343 A JPS6453343 A JP S6453343A JP 20914087 A JP20914087 A JP 20914087A JP 20914087 A JP20914087 A JP 20914087A JP S6453343 A JPS6453343 A JP S6453343A
- Authority
- JP
- Japan
- Prior art keywords
- evaporation source
- alloy film
- compsn
- essentially consisting
- thin alloy
- 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
- Manufacturing Of Magnetic Record Carriers (AREA)
- Thin Magnetic Films (AREA)
- Physical Vapour Deposition (AREA)
- Magnetic Record Carriers (AREA)
Abstract
PURPOSE:To easily produce a recording medium having excellent characteristics such as wear resistance and corrosion resistance with high productivity by using an alloy essentially consisting of Co, Cr, W, and C as an evaporation source of a vacuum deposition method and heating, melting and evaporating the alloy rapidly by laser light, thereby forming a thin alloy film. CONSTITUTION:The collimated beams of the incident CO2 laser light from an incident window 1 are converted by a copper concave mirror 2 directed diagonally downward toward the front end part of the evaporation source 3 essentially consisting of Co, Cr, W and C and are focused thereto. The evaporation source 3 melts and attains a high temp. rapidly and evaporates instantaneously. This metal vapor is condensed onto the surface of the substrate 4 placed in the position diametrially opposite to the evaporation source 3 and the thin alloy film essentially consisting of Co, Cr, W, and C is formed thereon. The compsn. equiv. to the compsn. of the evaporation source 3 is obtd. for the compsn. of the formed thin alloy film. The thin alloy film for recording having the excellent wear resistance and corrosion resistance is thus easily produced at a high film forming speed.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20914087A JPS6453343A (en) | 1987-08-25 | 1987-08-25 | Production of perpendicular magnetic recording medium |
| EP88104762A EP0284073A3 (en) | 1987-03-24 | 1988-03-24 | Vertical magnetic recording medium and method of manufacturing the same |
| US07/173,247 US4814239A (en) | 1987-03-24 | 1988-03-24 | Vertical magnetic recording medium and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20914087A JPS6453343A (en) | 1987-08-25 | 1987-08-25 | Production of perpendicular magnetic recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6453343A true JPS6453343A (en) | 1989-03-01 |
Family
ID=16567962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20914087A Pending JPS6453343A (en) | 1987-03-24 | 1987-08-25 | Production of perpendicular magnetic recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6453343A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2025507048A (en) * | 2022-03-14 | 2025-03-13 | マツクス－プランク－ゲゼルシヤフト ツール フエルデルング デル ヴイツセンシヤフテン エー フアウ | Raw material equipment and TLE system |
-
1987
- 1987-08-25 JP JP20914087A patent/JPS6453343A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2025507048A (en) * | 2022-03-14 | 2025-03-13 | マツクス－プランク－ゲゼルシヤフト ツール フエルデルング デル ヴイツセンシヤフテン エー フアウ | Raw material equipment and TLE system |
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