JP2010055680A - 磁気記録媒体用保護膜の形成方法、該方法で形成された保護膜および該保護膜を備えた磁気記録媒体 - Google Patents
磁気記録媒体用保護膜の形成方法、該方法で形成された保護膜および該保護膜を備えた磁気記録媒体 Download PDFInfo
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- JP2010055680A JP2010055680A JP2008218568A JP2008218568A JP2010055680A JP 2010055680 A JP2010055680 A JP 2010055680A JP 2008218568 A JP2008218568 A JP 2008218568A JP 2008218568 A JP2008218568 A JP 2008218568A JP 2010055680 A JP2010055680 A JP 2010055680A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic recording
- film
- recording medium
- protective film
- gas
- 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.)
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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
- G11B5/73—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
- G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer
- G11B5/7379—Seed layer, e.g. at least one non-magnetic layer is specifically adapted as a seed or seeding layer
-
- 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
- G11B5/667—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent the record carriers consisting of several layers including a soft magnetic layer
-
- 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
- G11B5/736—Non-magnetic layer under a soft magnetic layer, e.g. between a substrate and a soft magnetic underlayer [SUL] or a keeper layer
-
- 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
- G11B5/7368—Non-polymeric layer under the lowermost magnetic recording layer
- G11B5/7369—Two or more non-magnetic underlayers, e.g. seed layers or barrier layers
-
- 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
- G11B5/8408—Processes or apparatus specially adapted for manufacturing record carriers protecting the magnetic layer
Landscapes
- Manufacturing Of Magnetic Record Carriers (AREA)
Description
(1) 基体と該基体上に形成される金属膜層とを含む積層体の上に、炭化水素ガスを原料として用いるプラズマCVD法によって保護膜を形成する工程と、
(2) 工程(1)で形成した保護膜の表面処理工程であって、
(2a) アルゴンガス中でのプラズマ処理と、
(2b) 少なくとも窒素ガスを含むガス中でのプラズマ処理と
を含む表面処理工程と
を含むことを特徴とする。ここで、工程(2a)は、工程(1)と工程(2b)との間に実施することが望ましい。
(1) 基体と該基体上に形成される金属膜層とを含む積層体の上に、炭化水素ガスを原料として用いるプラズマCVD法によって保護膜を形成する工程と、
(2) 工程(1)で形成した保護膜の表面処理工程であって、
(2a) アルゴンガス中でのプラズマ処理と、
(2b) 少なくとも窒素ガスを含むガス中でのプラズマ処理と
を含む表面処理工程と
を含むことを特徴とする。
最初に、直径95mm、厚さ1.75mmのアルミニウム基体上に、CoZrNbからなる膜厚40nmの下地層、Ruからなる膜厚15nmの中間層、およびCoCrPt−SiO2からなる膜厚15nmの磁気記録層を順次積層して金属膜層を形成した。
窒素プラズマ処理の際のガスを、流量30sccmのアルゴンガスと流量20sccmの窒素ガスとの混合ガスから、流量30sccmの窒素ガスに変更したことを除いて実施例1の手順を繰り返して、サンプルを得た。
実施例1と同様の手順により、アルミニウム基体上への金属膜層の形成、DLC膜の形成、およびアルゴンプラズマ処理を実施した。
アルゴンプラズマ処理を行わなかったことを除いて実施例1の手順を繰り返して、サンプルを得た。
2 アルゴンガスの流量
3 窒素ガスの流量
Claims (4)
- (1) 基体と該基体上に形成される金属膜層とを含む積層体の上に、炭化水素ガスを原料として用いるプラズマCVD法によって保護膜を形成する工程と、
(2) 工程(1)で形成した保護膜の表面処理工程であって、
(2a) アルゴンガス中でのプラズマ処理と、
(2b) 少なくとも窒素ガスを含むガス中でのプラズマ処理と
を含む表面処理工程と
を含むことを特徴とする磁気記録媒体用保護膜の形成方法。 - 工程(1)と工程(2b)との間に工程(2a)を実施することを特徴とする磁気記録媒体用保護膜の形成方法。
- 請求項1または2に記載の磁気記録媒体用保護膜の形成方法で形成された磁気記録媒体用保護膜。
- 基体と、該基体上に形成される金属膜層と、請求項1または2に記載の磁気記録媒体用保護膜の形成方法で該金属膜層上に形成された保護膜とを備えたことを特徴とする磁気記録媒体。
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008218568A JP5093686B2 (ja) | 2008-08-27 | 2008-08-27 | 磁気記録媒体用保護膜の形成方法 |
| US12/549,244 US8182883B2 (en) | 2008-08-27 | 2009-08-27 | Method of forming a protective film for a magnetic recording medium, a protective film formed by the method and a magnetic recording medium having the protective film |
| US13/453,321 US8865269B2 (en) | 2008-08-27 | 2012-04-23 | Method of forming a protective film for a magnetic recording medium, a protective film formed by the method and a magnetic recording medium having the protective film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008218568A JP5093686B2 (ja) | 2008-08-27 | 2008-08-27 | 磁気記録媒体用保護膜の形成方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2010055680A true JP2010055680A (ja) | 2010-03-11 |
| JP5093686B2 JP5093686B2 (ja) | 2012-12-12 |
Family
ID=42071435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008218568A Expired - Fee Related JP5093686B2 (ja) | 2008-08-27 | 2008-08-27 | 磁気記録媒体用保護膜の形成方法 |
Country Status (2)
| Country | Link |
|---|---|
| US (2) | US8182883B2 (ja) |
| JP (1) | JP5093686B2 (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014114492A (ja) * | 2012-12-11 | 2014-06-26 | Yuutekku:Kk | プラズマcvd装置及び磁気記録媒体の製造方法 |
| US8980448B2 (en) | 2010-11-02 | 2015-03-17 | Fuji Electric Co., Ltd. | Magnetic recording medium including an amorphous carbon protective film |
| WO2015072843A1 (en) | 2013-11-14 | 2015-05-21 | Fuji Electric (Malaysia) Sdn Bhd | Method for manufacturing carbon-containing protective film |
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| JP5093686B2 (ja) | 2008-08-27 | 2012-12-12 | 富士電機株式会社 | 磁気記録媒体用保護膜の形成方法 |
| JP2010146683A (ja) * | 2008-12-22 | 2010-07-01 | Fuji Electric Device Technology Co Ltd | 保護膜の形成方法、及び当該方法により得られた保護膜、並びに当該保護膜を含む磁気記録媒体 |
| EP2251453B1 (en) | 2009-05-13 | 2013-12-11 | SiO2 Medical Products, Inc. | Vessel holder |
| US11624115B2 (en) | 2010-05-12 | 2023-04-11 | Sio2 Medical Products, Inc. | Syringe with PECVD lubrication |
| US9878101B2 (en) | 2010-11-12 | 2018-01-30 | Sio2 Medical Products, Inc. | Cyclic olefin polymer vessels and vessel coating methods |
| US11116695B2 (en) | 2011-11-11 | 2021-09-14 | Sio2 Medical Products, Inc. | Blood sample collection tube |
| WO2013071138A1 (en) | 2011-11-11 | 2013-05-16 | Sio2 Medical Products, Inc. | PASSIVATION, pH PROTECTIVE OR LUBRICITY COATING FOR PHARMACEUTICAL PACKAGE, COATING PROCESS AND APPARATUS |
| US20150297800A1 (en) | 2012-07-03 | 2015-10-22 | Sio2 Medical Products, Inc. | SiOx BARRIER FOR PHARMACEUTICAL PACKAGE AND COATING PROCESS |
| CN104854257B (zh) | 2012-11-01 | 2018-04-13 | Sio2医药产品公司 | 涂层检查方法 |
| WO2014078666A1 (en) | 2012-11-16 | 2014-05-22 | Sio2 Medical Products, Inc. | Method and apparatus for detecting rapid barrier coating integrity characteristics |
| US9764093B2 (en) | 2012-11-30 | 2017-09-19 | Sio2 Medical Products, Inc. | Controlling the uniformity of PECVD deposition |
| WO2014085348A2 (en) | 2012-11-30 | 2014-06-05 | Sio2 Medical Products, Inc. | Controlling the uniformity of pecvd deposition on medical syringes, cartridges, and the like |
| US20160015898A1 (en) | 2013-03-01 | 2016-01-21 | Sio2 Medical Products, Inc. | Plasma or cvd pre-treatment for lubricated pharmaceutical package, coating process and apparatus |
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| MY183150A (en) | 2014-03-25 | 2021-02-16 | Fuji Electric Malaysia Sdn Bhd | Protective layer for a magnetic recording medium, and a method of manufacturing the same |
| WO2015148471A1 (en) | 2014-03-28 | 2015-10-01 | Sio2 Medical Products, Inc. | Antistatic coatings for plastic vessels |
| BR112018003051B1 (pt) | 2015-08-18 | 2022-12-06 | Sio2 Medical Products, Inc | Tubo de coleta de sangue submetido a vácuo |
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2009
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2012
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8980448B2 (en) | 2010-11-02 | 2015-03-17 | Fuji Electric Co., Ltd. | Magnetic recording medium including an amorphous carbon protective film |
| JP2014114492A (ja) * | 2012-12-11 | 2014-06-26 | Yuutekku:Kk | プラズマcvd装置及び磁気記録媒体の製造方法 |
| WO2015072843A1 (en) | 2013-11-14 | 2015-05-21 | Fuji Electric (Malaysia) Sdn Bhd | Method for manufacturing carbon-containing protective film |
| JP2016517996A (ja) * | 2013-11-14 | 2016-06-20 | フジ エレクトリック (マレーシア) エスディーエヌ ビーエイチディー | カーボン系保護膜の製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20100086808A1 (en) | 2010-04-08 |
| US8865269B2 (en) | 2014-10-21 |
| JP5093686B2 (ja) | 2012-12-12 |
| US20120207946A1 (en) | 2012-08-16 |
| US8182883B2 (en) | 2012-05-22 |
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