JPS5771519A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS5771519A JPS5771519A JP55148024A JP14802480A JPS5771519A JP S5771519 A JPS5771519 A JP S5771519A JP 55148024 A JP55148024 A JP 55148024A JP 14802480 A JP14802480 A JP 14802480A JP S5771519 A JPS5771519 A JP S5771519A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- magnetic
- metallic
- metallic layer
- recording medium
- 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 abstract 4
- 239000010409 thin film Substances 0.000 abstract 3
- 229910001096 P alloy Inorganic materials 0.000 abstract 2
- 229910045601 alloy Inorganic materials 0.000 abstract 2
- 239000000956 alloy Substances 0.000 abstract 2
- 238000007772 electroless plating Methods 0.000 abstract 2
- 238000009713 electroplating Methods 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 229910000990 Ni alloy Inorganic materials 0.000 abstract 1
- VEQPNABPJHWNSG-UHFFFAOYSA-N Nickel(2+) Chemical compound [Ni+2] VEQPNABPJHWNSG-UHFFFAOYSA-N 0.000 abstract 1
- 239000004952 Polyamide Substances 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- -1 hypophosphite ions Chemical class 0.000 abstract 1
- 229910001004 magnetic alloy Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000007769 metal material Substances 0.000 abstract 1
- 229910001453 nickel ion Inorganic materials 0.000 abstract 1
- 238000007747 plating Methods 0.000 abstract 1
- 229920002647 polyamide Polymers 0.000 abstract 1
- 229920000728 polyester Polymers 0.000 abstract 1
Classifications
-
- 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
- G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
- G11B5/66—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers
Landscapes
- Magnetic Record Carriers (AREA)
Abstract
PURPOSE:To provide a metallic thin film type magnetic recording medium having an amorphous and smooth underlying metallic layer and having overall superior performances by forming the underlying metallic layer consisting of a non-magnetic Ni-base alloy contg. a specific amt. of P and a magnetic metallic layer successively on a base material. CONSTITUTION:A conductive layer 2 consisting of a non-magnetic metal such as copper is formed on a base material 1 consisting of polyester, polyamide, etc. by an electroless plating method, and an underlying metallic layer 3 consisting of a nonmagnetic Ni-base alloy contg. 1-15wt% P is formed thereon by an electroplating method using a plating bath contg. bivalent nickel ions and hypophosphite ions. Thence, a magnetic metallic layer 4 consisting of a thin film of a magnetic alloy such as Ni-Co-P alloy or Co-P alloy, and a protecting layer 5 consisting of a nonmagnetic metallic material such as nickel alloy are formed successively thereon by an electroplating method, an electroless plating method or the like, whereby the intended metallic thin film type magnetic recording medium is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55148024A JPS5771519A (en) | 1980-10-22 | 1980-10-22 | Magnetic recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55148024A JPS5771519A (en) | 1980-10-22 | 1980-10-22 | Magnetic recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5771519A true JPS5771519A (en) | 1982-05-04 |
Family
ID=15443396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55148024A Pending JPS5771519A (en) | 1980-10-22 | 1980-10-22 | Magnetic recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5771519A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6111920A (en) * | 1984-06-26 | 1986-01-20 | Shin Etsu Chem Co Ltd | Magnetic recording body and its manufacture |
| US4724188A (en) * | 1984-06-07 | 1988-02-09 | C. Uyemura and Co. | Magnetic recording medium |
| US7468320B2 (en) | 1999-07-27 | 2008-12-23 | International Business Machines Corporation | Reduced electromigration and stressed induced migration of copper wires by surface coating |
-
1980
- 1980-10-22 JP JP55148024A patent/JPS5771519A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4724188A (en) * | 1984-06-07 | 1988-02-09 | C. Uyemura and Co. | Magnetic recording medium |
| JPS6111920A (en) * | 1984-06-26 | 1986-01-20 | Shin Etsu Chem Co Ltd | Magnetic recording body and its manufacture |
| JPH02772B2 (en) * | 1984-06-26 | 1990-01-09 | Shinetsu Chem Ind Co | |
| US7468320B2 (en) | 1999-07-27 | 2008-12-23 | International Business Machines Corporation | Reduced electromigration and stressed induced migration of copper wires by surface coating |
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