JP5292592B2 - 光記録媒体 - Google Patents
光記録媒体 Download PDFInfo
- Publication number
- JP5292592B2 JP5292592B2 JP2008003668A JP2008003668A JP5292592B2 JP 5292592 B2 JP5292592 B2 JP 5292592B2 JP 2008003668 A JP2008003668 A JP 2008003668A JP 2008003668 A JP2008003668 A JP 2008003668A JP 5292592 B2 JP5292592 B2 JP 5292592B2
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- information layer
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- 230000003287 optical effect Effects 0.000 title claims abstract description 97
- 230000008033 biological extinction Effects 0.000 claims abstract description 107
- 239000000470 constituent Substances 0.000 claims abstract description 7
- 230000031700 light absorption Effects 0.000 claims description 75
- 125000004429 atom Chemical group 0.000 claims description 17
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- 229910052797 bismuth Inorganic materials 0.000 claims description 11
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 11
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 229910052749 magnesium Inorganic materials 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 229910052725 zinc Inorganic materials 0.000 claims description 5
- 229910052787 antimony Inorganic materials 0.000 claims description 4
- 229910052791 calcium Inorganic materials 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229910052758 niobium Inorganic materials 0.000 claims description 4
- 229910052700 potassium Inorganic materials 0.000 claims description 4
- 229910052708 sodium Inorganic materials 0.000 claims description 4
- 229910052718 tin Inorganic materials 0.000 claims description 4
- 229910052726 zirconium Inorganic materials 0.000 claims description 4
- 229910052688 Gadolinium Inorganic materials 0.000 claims description 3
- 229910052779 Neodymium Inorganic materials 0.000 claims description 3
- 229910052772 Samarium Inorganic materials 0.000 claims description 3
- 229910052771 Terbium Inorganic materials 0.000 claims description 3
- 229910052738 indium Inorganic materials 0.000 claims description 3
- 229910052746 lanthanum Inorganic materials 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052712 strontium Inorganic materials 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 229910052720 vanadium Inorganic materials 0.000 claims description 3
- 229910052727 yttrium Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 description 99
- 239000000758 substrate Substances 0.000 description 30
- 230000000694 effects Effects 0.000 description 16
- 125000006850 spacer group Chemical group 0.000 description 16
- 229920005989 resin Polymers 0.000 description 10
- 239000011347 resin Substances 0.000 description 10
- 238000005259 measurement Methods 0.000 description 8
- 238000002310 reflectometry Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 5
- 230000001678 irradiating effect Effects 0.000 description 5
- -1 for example) Inorganic materials 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 238000002834 transmittance Methods 0.000 description 4
- 235000005811 Viola adunca Nutrition 0.000 description 3
- 240000009038 Viola odorata Species 0.000 description 3
- 235000013487 Viola odorata Nutrition 0.000 description 3
- 235000002254 Viola papilionacea Nutrition 0.000 description 3
- 229910052732 germanium Inorganic materials 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 239000011295 pitch Substances 0.000 description 2
- 238000005546 reactive sputtering Methods 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910020203 CeO Inorganic materials 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2403—Layers; Shape, structure or physical properties thereof
- G11B7/24035—Recording layers
- G11B7/24038—Multiple laminated recording layers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
- G11B7/2433—Metals or elements of Groups 13, 14, 15 or 16 of the Periodic Table, e.g. B, Si, Ge, As, Sb, Bi, Se or Te
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
- G11B7/2437—Non-metallic elements
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
- G11B2007/24302—Metals or metalloids
- G11B2007/24314—Metals or metalloids group 15 elements (e.g. Sb, Bi)
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
- G11B2007/24318—Non-metallic elements
- G11B2007/2432—Oxygen
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
Description
前記実施例1に対し、光吸収膜12Aを省略した2層記録式の2種類の光記録媒体のサンプルK、Lを作製した。又、上記実施例1に対し、光吸収膜12Aの材料組成を変更した2層記録式の光記録媒体のサンプルMを作製した。又、上記実施例1に対し、第1記録膜12R、第2記録膜14Rの材料を変更した2層記録式の光記録媒体のサンプルNを作製した。これらサンプルK〜Nの第1情報層12及び第2情報層14の構成を表6に示す。
前記実施例3に対し、光吸収膜12Aを省略した3層記録式の光記録媒体のサンプルPを作製した。又、上記実施例3に対し、第1記録膜12R、第2記録膜14R、第3記録膜52Rの材料等を変更した3層記録式の光記録媒体のサンプルQを作製した。これらサンプルP、Qの第1情報層12、第2情報層14及び第3情報層52の構成を表7に示す。
12…第1情報層
12R…第1記録膜
12A、14A、52A、62A…光吸収膜
12D、14D、52D、62D、72D、74D…誘電体膜
14…第2情報層
14R…第2記録膜
16…入射面
18…基板
20…カバー層
22…スペーサ層
24…フォトディテクタ
52…第3情報層
52R…第3記録膜
62…第4情報層
62R…第4記録膜
72…第5情報層
72R…第5記録膜
74…底部情報層
74R…底部記録膜
Claims (5)
- 記録膜を備える複数の情報層を含み、これら情報層の記録膜は構成元素が共通でいずれも記録/再生のために用いられるレーザ光の波長における消衰係数が0.4以下であり、これら情報層のうちレーザ光の入射面に最も近い位置に配置された情報層よりも前記入射面から離間して配置された少なくとも1層の情報層は、前記レーザ光の波長における消衰係数が1.5以下であり、且つ、該消衰係数が前記記録膜の消衰係数よりも大きく、全面において前記記録膜に接して設置された光吸収膜を更に備えることを特徴とする光記録媒体。
- 記録膜を備える3層以上の情報層を含み、これら情報層の記録膜は構成元素が共通でいずれも記録/再生のために用いられるレーザ光の波長における消衰係数が0.2以下であり、これら情報層のうちレーザ光の入射面に最も近い位置に配置された情報層よりも前記入射面から離間して配置された少なくとも1層の情報層は、前記レーザ光の波長における消衰係数が1.5以下であり、且つ、該消衰係数が前記記録膜の消衰係数よりも大きく、全面において前記記録膜に接して設置された光吸収膜を更に備えることを特徴とする光記録媒体。
- 請求項1又は2において、
前記光吸収膜の消衰係数が0.3以上であることを特徴とする光記録媒体。 - 請求項1乃至3のいずれかにおいて、
前記記録膜はBi、O及びM(MはMg、Ca、Y、Dy、Ce、Tb、Ti、Zr、V、Nb、Ta、Mo、W、Mn、Fe、Zn、Al、In、Si、Ge、Sn、Sb、Li、Na、K、Sr、Ba、Sc、La、Nd、Sm、Gd、Ho、Cr、Co、Ni、Cu、Ga、Pbの中から選択される少なくとも1種の元素)からなり、該記録膜を構成する総ての原子の数に対するOの原子数の比率が62%以上であることを特徴とする光記録媒体。 - 請求項1乃至3のいずれかにおいて、
前記記録膜はBi及びOからなり、該記録膜を構成する総ての原子の数に対するOの原子数の比率が62%以上であることを特徴とする光記録媒体。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008003668A JP5292592B2 (ja) | 2007-01-15 | 2008-01-10 | 光記録媒体 |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007006477 | 2007-01-15 | ||
JP2007006477 | 2007-01-15 | ||
JP2008003668A JP5292592B2 (ja) | 2007-01-15 | 2008-01-10 | 光記録媒体 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008198333A JP2008198333A (ja) | 2008-08-28 |
JP5292592B2 true JP5292592B2 (ja) | 2013-09-18 |
Family
ID=39617669
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008003668A Expired - Fee Related JP5292592B2 (ja) | 2007-01-15 | 2008-01-10 | 光記録媒体 |
Country Status (2)
Country | Link |
---|---|
US (1) | US20080170485A1 (ja) |
JP (1) | JP5292592B2 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080170484A1 (en) * | 2007-01-15 | 2008-07-17 | Tdk Corporation | Optical recording medium |
JP2008243306A (ja) * | 2007-03-28 | 2008-10-09 | Tdk Corp | 情報記録方法、情報記録装置 |
JP4995611B2 (ja) * | 2007-03-28 | 2012-08-08 | Tdk株式会社 | 情報記録方法、情報記録装置 |
EP2360692A4 (en) * | 2008-12-10 | 2014-08-27 | Panasonic Corp | INFORMATION RECORDING MEDIA AND PLAYING DEVICE AND PLAYBACK METHOD |
WO2010067556A1 (ja) * | 2008-12-11 | 2010-06-17 | パナソニック株式会社 | 情報記録媒体、再生装置および再生方法 |
JP5343913B2 (ja) * | 2010-04-15 | 2013-11-13 | ソニー株式会社 | 多層光記録媒体 |
CN112543973B (zh) * | 2018-08-09 | 2023-03-10 | 松下知识产权经营株式会社 | 信息记录介质及其制造方法 |
Family Cites Families (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6300039B1 (en) * | 1994-03-25 | 2001-10-09 | Toray Industries, Inc. | Optical recording medium |
JP2990011B2 (ja) * | 1994-03-29 | 1999-12-13 | ティーディーケイ株式会社 | 光記録媒体 |
US6319368B1 (en) * | 1995-03-31 | 2001-11-20 | Ricoh Company, Ltd. | Sputtering target, method of producing the target, optical recording medium fabricated by using the sputtering target, and method of forming recording layer for the optical recording medium |
US6231945B1 (en) * | 1997-09-09 | 2001-05-15 | Hitachi, Ltd. | Information recording medium |
AU2003205842A1 (en) * | 2002-02-02 | 2003-09-02 | Qinetiq Limited | Head position sensor |
JP4199731B2 (ja) * | 2002-05-31 | 2008-12-17 | パナソニック株式会社 | 光記録媒体、光情報処理装置および光記録再生方法 |
JP2004095111A (ja) * | 2002-09-03 | 2004-03-25 | Ricoh Co Ltd | 相変化型光記録媒体 |
JP4217214B2 (ja) * | 2002-09-18 | 2009-01-28 | パナソニック株式会社 | 光学情報記録媒体 |
US7439007B2 (en) * | 2002-12-20 | 2008-10-21 | Ricoh Company, Ltd. | Phase change information recording medium having multiple layers and recording and playback method for the medium |
JP2004311011A (ja) * | 2003-03-27 | 2004-11-04 | Matsushita Electric Ind Co Ltd | 光学的情報記録媒体とその製造方法、この媒体を用いた情報の記録方法及び記録装置 |
JP2005078782A (ja) * | 2003-09-04 | 2005-03-24 | Tdk Corp | 光記録媒体及びその製造方法、並びに、光記録媒体に対するデータ記録方法及びデータ再生方法 |
JP2005004944A (ja) * | 2003-05-16 | 2005-01-06 | Ricoh Co Ltd | 光記録媒体及びその記録再生方法と装置 |
JP2005022409A (ja) * | 2003-06-13 | 2005-01-27 | Matsushita Electric Ind Co Ltd | 光学情報記録媒体とその製造方法 |
US20040253539A1 (en) * | 2003-06-13 | 2004-12-16 | Matsushita Electric Industrial Co., Ltd. | Optical information recording medium and method for manufacturing the same |
EP1657071B1 (en) * | 2003-08-21 | 2013-02-27 | Mitsubishi Kagaku Media Co., Ltd. | Recording medium |
ATE379835T1 (de) * | 2004-03-12 | 2007-12-15 | Matsushita Electric Ind Co Ltd | Optisches informationsaufzeichnungsmedium, herstellungsverfahren, aufzeichnungsverfahren und aufzeichnungsvorrichtung dafür |
JP2005302275A (ja) * | 2004-03-18 | 2005-10-27 | Sharp Corp | 光情報記録媒体、記録再生方法、ならびに記録再生装置 |
JP4136980B2 (ja) * | 2004-03-19 | 2008-08-20 | 株式会社リコー | 多層相変化型情報記録媒体及びその記録再生方法 |
US7399511B2 (en) * | 2004-04-22 | 2008-07-15 | Tdk Corporation | Optical recording medium |
US7952984B2 (en) * | 2004-04-22 | 2011-05-31 | Tdk Corporation | Optical recording medium and method of recording and reproducing of optical recording medium |
JP4506680B2 (ja) * | 2004-05-13 | 2010-07-21 | Tdk株式会社 | 光記録媒体 |
JP4382613B2 (ja) * | 2004-08-27 | 2009-12-16 | 株式会社リコー | 光記録媒体とその記録再生方法及び製造方法 |
WO2006025558A1 (en) * | 2004-08-31 | 2006-03-09 | Ricoh Company, Ltd. | Write-onece-read-many optical recording medium and sputtering target thereof |
JP2006079795A (ja) * | 2004-09-13 | 2006-03-23 | Tdk Corp | 光記録媒体 |
JP4012934B1 (ja) * | 2005-03-02 | 2007-11-28 | 株式会社リコー | 光記録媒体及び多層型光記録媒体を用いた光記録方法及び光記録装置 |
JP2006338717A (ja) * | 2005-05-31 | 2006-12-14 | Canon Inc | 光ディスク |
JP2007095235A (ja) * | 2005-09-30 | 2007-04-12 | Victor Co Of Japan Ltd | 光記録媒体 |
US20070237064A1 (en) * | 2006-02-15 | 2007-10-11 | Toshishige Fujii | Dual-layer recordable optical recording medium |
JP4967908B2 (ja) * | 2006-08-24 | 2012-07-04 | Tdk株式会社 | 光記録媒体 |
-
2008
- 2008-01-03 US US12/003,913 patent/US20080170485A1/en not_active Abandoned
- 2008-01-10 JP JP2008003668A patent/JP5292592B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US20080170485A1 (en) | 2008-07-17 |
JP2008198333A (ja) | 2008-08-28 |
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