JPS59101032A - Manufacture of magnetic recording medium - Google Patents
Manufacture of magnetic recording mediumInfo
- Publication number
- JPS59101032A JPS59101032A JP20852882A JP20852882A JPS59101032A JP S59101032 A JPS59101032 A JP S59101032A JP 20852882 A JP20852882 A JP 20852882A JP 20852882 A JP20852882 A JP 20852882A JP S59101032 A JPS59101032 A JP S59101032A
- Authority
- JP
- Japan
- Prior art keywords
- ferromagnetic metal
- base body
- magnetic
- recording medium
- 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 40
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 229910052751 metal Inorganic materials 0.000 claims abstract description 32
- 239000002184 metal Substances 0.000 claims abstract description 32
- 230000005294 ferromagnetic effect Effects 0.000 claims abstract description 29
- 238000001704 evaporation Methods 0.000 claims abstract description 15
- 230000001154 acute effect Effects 0.000 claims abstract description 6
- 239000000758 substrate Substances 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 7
- 238000000151 deposition Methods 0.000 claims description 5
- 230000008020 evaporation Effects 0.000 abstract description 12
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 230000006698 induction Effects 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 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
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
- G11B5/85—Coating a support with a magnetic layer by vapour deposition
Landscapes
- Manufacturing Of Magnetic Record Carriers (AREA)
- Thin Magnetic Films (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は磁気ディスク等の磁気記録媒体の製造方法に関
するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing a magnetic recording medium such as a magnetic disk.
磁気テープや磁気ディスク等の基体に磁性層を設けた磁
気記録媒体として、最近、塗布型に代わり、蒸着型が用
いられるようになってきた。2. Description of the Related Art Recently, a vapor deposition type has been used instead of a coating type as a magnetic recording medium in which a magnetic layer is provided on a substrate such as a magnetic tape or a magnetic disk.
蒸着型の磁気記録媒体は、基体に強磁性体金属を基体の
法線に対して所定の角瓜で付着させることにより磁性層
を形成させたもので、従来の塗布型に比べて抗磁力や角
形比等の磁気特性を向上しうるものである。Vapor-deposited magnetic recording media have a magnetic layer formed by depositing a ferromagnetic metal on a substrate at a predetermined angle relative to the normal to the substrate, and have a higher coercive force than conventional coating-type magnetic recording media. This can improve magnetic properties such as squareness ratio.
ところで、強磁性体金属を基体に斜めに付着させる場合
には、真空蒸着法等により、基体を蒸発方向に対して斜
めに走行さヒたすするために、付着効率が非常に低く、
製造時間がかかり高価になる欠点があった。By the way, when attaching ferromagnetic metal to a substrate obliquely, the adhesion efficiency is very low because the substrate is run obliquely to the evaporation direction using a vacuum evaporation method or the like.
It has the disadvantage of being time-consuming and expensive to manufacture.
本発明は、以上の欠点を改良し、強磁性体金属の付着効
率を向上しつる磁気記録媒体の製造方法の提供を目的と
するものである。The object of the present invention is to improve the above-mentioned drawbacks, improve the adhesion efficiency of ferromagnetic metal, and provide a method for manufacturing a magnetic recording medium.
本発明は、上記の目的を達成するために、基体に強磁性
体金属を付着して磁性層を形成する磁気記録媒体の製造
方法において、基体を回転し、該回転中の基体に対して
強磁性体金属を蒸発して付着させることを特徴とする磁
気記録媒体の製造方法を提供するものである。In order to achieve the above object, the present invention provides a method for manufacturing a magnetic recording medium in which a magnetic layer is formed by attaching a ferromagnetic metal to a substrate, in which the substrate is rotated and a strong force is applied to the rotating substrate. The present invention provides a method for manufacturing a magnetic recording medium characterized by evaporating and depositing a magnetic metal.
また、本発明は、上記の目的を達成するために、基体に
強磁性体金属を付着して磁性層を形成する磁気記録媒体
の製造方法において、基体を回転し、該回転中の基体に
該雄体の法線に対して鋭角の角度で強磁性体金属を蒸発
させ４１着させることを特徴とする磁気記録媒体の製造
方法を提供するものである。In addition, in order to achieve the above object, the present invention provides a method for manufacturing a magnetic recording medium in which a ferromagnetic metal is attached to a substrate to form a magnetic layer, in which the substrate is rotated and a magnetic layer is applied to the rotating substrate. The present invention provides a method for manufacturing a magnetic recording medium, characterized in that ferromagnetic metal is evaporated and deposited at an acute angle with respect to the normal to a male body.
以下、本発明の実施例を図面に基づいて説明する。Embodiments of the present invention will be described below based on the drawings.
第１図において、１は任意の速度で回転する載置台であ
る。２はこの載置台１に保持されたアルマイト処理を施
されたアルミ製の基体である。３は蒸発源であり、鉄や
コバルト、ニッケル等の強磁性体金属４が収納されてい
る。周囲の雰囲気は１０−４〜１０’Ｔｏｒｒ稈度の真
空度に保持されている。マスクは任意に設ける。In FIG. 1, reference numeral 1 denotes a mounting table that rotates at an arbitrary speed. Reference numeral 2 denotes an alumite-treated aluminum base body held on this mounting table 1. 3 is an evaporation source, and a ferromagnetic metal 4 such as iron, cobalt, nickel, etc. is housed therein. The surrounding atmosphere is maintained at a vacuum level of 10 -4 to 10' Torr. Masks are optional.
すなわち、先ず載置台１を軸５を中心にして回転させる
。そして蒸発源３を抵抗加熱や誘導加熱等により加熱し
て強磁性体金属４を溶融し蒸発させる。この際、強磁性
体金属４は基体２に対してほぼ直角に蒸発する。蒸発し
た強磁性体金属４は基体２に付４ ｉ−るが、基体２が
任意の速度で回転しているので、付着する際に基体２の
法線に対して基体２の回転速度により決まる鋭角の角度
で斜になる。従って、基体２には強磁性体金属４の斜め
蒸着による磁性層が形成され、抗磁力や角形比の優れた
磁気記録媒体が得られる。しかも、強磁性体金属４は基
体２に対して斜めに蒸発させる必要がないので、強磁性
体金属４の基体２に対するイ」着効率か従来の斜め蒸着
方法に比べて道かに増大し、磁気記録媒体の製造時間が
短縮でき、安価になる。That is, first, the mounting table 1 is rotated around the axis 5. Then, the evaporation source 3 is heated by resistance heating, induction heating, etc. to melt and evaporate the ferromagnetic metal 4. At this time, the ferromagnetic metal 4 evaporates almost perpendicularly to the base 2. The evaporated ferromagnetic metal 4 is attached to the substrate 2, but since the substrate 2 is rotating at an arbitrary speed, the rate at which it attaches is determined by the rotational speed of the substrate 2 with respect to the normal to the substrate 2. Oblique at an acute angle. Therefore, a magnetic layer is formed on the substrate 2 by diagonally depositing the ferromagnetic metal 4, and a magnetic recording medium with excellent coercive force and squareness ratio can be obtained. Furthermore, since the ferromagnetic metal 4 does not need to be evaporated obliquely to the substrate 2, the deposition efficiency of the ferromagnetic metal 4 to the substrate 2 is significantly increased compared to the conventional oblique evaporation method. The manufacturing time of magnetic recording media can be shortened and the cost can be reduced.
第２図は、もう一つの本発明の実施例の４７．Ｂ Ｂ図
を示しており、載置台１１が、蒸発源′！２に収納され
た強磁性体金属１３の蒸発方向が載置台１１の法線に対
して鋭角となるように配置されている。FIG. 2 shows 47. of another embodiment of the present invention. The mounting table 11 is the evaporation source'! The ferromagnetic metal 13 housed in the ferromagnetic metal 13 is arranged so that the evaporation direction thereof is at an acute angle to the normal line of the mounting table 11.
すなわち、載置台１１を軸１４を中心にして回転させ、
蒸発［１２を加熱し強磁性体金属１３を蒸発させること
により載置台１１に保持された基１Ａ１５に強磁性体金
属１３を付着させ磁性層を形成する。強磁性体金属１３
が基体１５に付着づる際、基体１５が載置台１１ととも
に回転しており、しかも強磁性体金属１３の蒸発方向が
基体１５に対して斜めになっているので、磁性層は強磁
性体金属１３の斜め蒸着によって形成され、抗磁力や角
形比が改善され、また、基体１５の回転速度をあまり高
めることな（かつ強磁性体金属１３の蒸発方向を基体１
５の法線に対してあまり鋭角にすることなく斜め蒸着が
できるので、製造時間の短縮や価格の低減が可能である
。That is, the mounting table 11 is rotated around the shaft 14,
Evaporation [12] is heated to evaporate the ferromagnetic metal 13, thereby adhering the ferromagnetic metal 13 to the base 1A15 held on the mounting table 11 to form a magnetic layer. Ferromagnetic metal 13
When attached to the base 15, the base 15 is rotating together with the mounting table 11, and the evaporation direction of the ferromagnetic metal 13 is oblique to the base 15, so the magnetic layer is attached to the ferromagnetic metal 13. It is formed by oblique evaporation of ferromagnetic metal 13, which improves the coercive force and squareness ratio.
Since oblique vapor deposition can be performed without making the angle too acute with respect to the normal line of 5, manufacturing time and cost can be reduced.
以上の通り、本発明によれば、基体の回転を利用して、
斜め蒸着による磁性層を形成できるので抗磁力や角形比
を向上しつるのみならず製造時間を短縮できかつ安価な
磁気記録媒体の製造方法が得られる。As described above, according to the present invention, by utilizing the rotation of the base,
Since the magnetic layer can be formed by oblique evaporation, it is possible to improve the coercive force and squareness ratio, thereby providing not only a smooth structure but also an inexpensive method of manufacturing a magnetic recording medium that can shorten the manufacturing time.
第１図は本発明の実施例の梠造図、第２図は他の本発明
の実施例のＭ４造図を示す。
２．１５・・・基体、 ４．１３・・・強磁性体金属。
第１図
第２図
手続補正書く自発）
１．事件の表示
昭和５７年特許願第２０８５２８号
２、発明の名称
磁気記録媒体の製造方法
３、補正をする者
事件との関係 特許出願人
シｔガワ２ ニノゴタンダ
住所 東京部品用区西五反田七丁目２５番５号第１２行
目との間に「なお、以上の各実施例において、マスクを
設けなかつＩｃか、必要に応じて任意の材質・形状等の
マスクを任意の位置に設けてもＪ：い。」を加入する。FIG. 1 shows an M4 construction drawing of an embodiment of the present invention, and FIG. 2 shows an M4 construction drawing of another embodiment of the invention. 2.15...Substrate, 4.13...Ferromagnetic metal. Figure 1 Figure 2 Procedural amendments voluntarily) 1. Display of the case 1982 Patent Application No. 208528 2 Name of the invention Method for manufacturing magnetic recording media 3 Person making the amendment Relationship to the case Patent applicant Shitgawa 2 Ninogotanda Address 25 Nishigotanda 7-chome, Parts Ward, Tokyo No. 5, line 12: ``In each of the above embodiments, it is possible to provide Ic without a mask, or to provide a mask of any material, shape, etc. at any position if necessary. Add ``.''.
Claims (2)
磁気記録媒体の製造方法において、基体を回転し、該回
転中の基体に対して強磁性体金属を蒸発して付着させる
ことを特徴とする磁気記録媒体の製造方法。(1) In a method of manufacturing a magnetic recording medium in which a ferromagnetic metal is attached to a substrate to form a magnetic layer, the substrate is rotated and the ferromagnetic metal is evaporated and attached to the rotating substrate. A method of manufacturing a magnetic recording medium characterized by:
磁気記録媒体の製造方法において、基体を回転し、該回
転中の基体に該基体の法線に対して鋭角の角度で強磁性
体金属を蒸発させ付着させることを特徴とする磁気記録
媒体の製造方法。(2) In a method of manufacturing a magnetic recording medium in which a magnetic layer is formed by attaching a ferromagnetic metal to a substrate, the substrate is rotated, and a magnetic field is applied to the rotating substrate at an acute angle with respect to the normal to the substrate. A method for manufacturing a magnetic recording medium, characterized by evaporating and depositing a magnetic metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20852882A JPS59101032A (en) | 1982-11-30 | 1982-11-30 | Manufacture of magnetic recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20852882A JPS59101032A (en) | 1982-11-30 | 1982-11-30 | Manufacture of magnetic recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59101032A true JPS59101032A (en) | 1984-06-11 |
Family
ID=16557675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20852882A Pending JPS59101032A (en) | 1982-11-30 | 1982-11-30 | Manufacture of magnetic recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59101032A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52153708A (en) * | 1976-06-16 | 1977-12-21 | Nec Corp | Magnetic disc and its manufacture |
-
1982
- 1982-11-30 JP JP20852882A patent/JPS59101032A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52153708A (en) * | 1976-06-16 | 1977-12-21 | Nec Corp | Magnetic disc and its manufacture |
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