CN100394498C - 用于高速记录的一次写光学记录载体 - Google Patents

用于高速记录的一次写光学记录载体 Download PDF

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CN100394498C
CN100394498C CNB2004800121212A CN200480012121A CN100394498C CN 100394498 C CN100394498 C CN 100394498C CN B2004800121212 A CNB2004800121212 A CN B2004800121212A CN 200480012121 A CN200480012121 A CN 200480012121A CN 100394498 C CN100394498 C CN 100394498C
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H·C·F·马坦斯
B·蒂科
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Koninklijke Philips NV
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Abstract

本发明涉及用于高速记录的一次写光学记录载体，尤其涉及DVD+R盘。这种记录载体通常包括至少衬底层(3)、在衬底层(3)上的有机染料材料的记录层(2)、在记录层(2)上的金属反射层(1)。为了在记录层(2)和反射层(1)之间的界面处获得不太陡的温度梯度并因此阻止机械应力导致分层问题，提议减小金属反射层(1)的厚度至低于75nm的范围。在记录层(2)和金属反射层(1)之间还包含了厚度低于50nm的电介质层。

Description

用于高速记录的一次写光学记录载体
技术领域
本发明涉及一次写光学记录载体，诸如DVD+R，尤其涉及单层DVD+R，所述一次写光学记录载体适合于位于其上的数据的高速记录。
背景技术
目前，高速DVD+R标准的研发具有高优先级。当前基于染料的高速DVD+R媒介呈现出高达4倍或者甚至6倍的合理性能。然而，在较高速度下功率余量变得越来越窄。相信，在高速记录需要高功率的情况下，在染料金属界面处会出现分层，即在有机染料材料制成的记录层和提供用于冷却记录层的金属反射层之间的界面处会出现分层。这些问题引发了对于使用一次写光学记录载体实现更高记录速度的可能性的关注，尤其是在DVD+R媒介中，该一次写光学记录载体包括有机染料材料制成的记录层。然而，由于染料本身的高度透明性允许(同反射层一起)制成高反射盘，使得对于现有播放器上的记录盘具有向后兼容性，因此染料的使用被认为是有利的。
金属反射层的厚度通常大约为100nm。金属反射层存在的重要作用是它具有大冷却功率，即它具有高的热容量。因此相信，金属反射层厚度的减小将会导致较小的染料记录层的冷却效率。由于染料仅具有不良热传导性，因此通过金属反射层的有效冷却将在记录层和金属反射层之间的界面附近产生较大的温度梯度。可能的是，由该较陡梯度产生的机械应力会导致上述分层问题。
US 5,718,961公开了相变类型光盘，在该相变类型光盘中第一电介质膜、第二电介质膜、记录膜和反射膜顺序堆叠在衬底上。反射层的厚度可以在10-120nm的较宽范围。通过使用ZnO-BN作为用于第一和第二电介质膜的材料，可以实现高记录灵敏性和热稳定性，记录期间产生的热可以迅速消散至反射层。
发明内容
本发明的目标是提供一次写光学记录载体，该一次写光学记录载体允许较高记录速度，但在记录层和金属反射层之间的界面处却具有减小的温度梯度以避免诸如分层的机械问题。
根据本发明，通过权利要求1所述的一次写光学记录载体实现该目标，所述一次写光学记录载体包括：
衬底层，
在衬底层上的有机染料材料的记录层，和
在记录层上的厚度小于50nm的，尤其低于30nm的金属反射层。
本发明基于这样的发现(同通常认识相反)，即认为金属反射层厚度的减小可以是有利的。已经发现的是，通过减小厚度，冷却效率变得较低，然而却致使记录层和金属反射层之间的界面处的温度梯度更加平缓。温度梯度变缓将减小机械应力，并因此阻止分层。因此已经认识到的是，记录堆叠冷却的恶化确实可提高高速记录性能。这意味着，通过本发明，提出了同本领域技术人员通常认识相反的做法，所述通常认识是指对于具有由有机染料材料制成或相变材料制成的记录层的记录载体的认识。
在从属权利要求中定义了本发明的优选实施例。通过厚度低于50nm的金属层可以改善高速记录性能，通过减小厚度甚至远低于30nm，可以进一步改善该性能。
根据另一优选实施例，在记录层和金属反射层之间提供了附加电介质层。该电介质层用作热阻挡层，并能够模仿发射层的减小的散热能力。诸如SiO2、ZnS、ZnS-SiO2混合物(例如8∶2)、TiO2或者其它电介质材料的附加电介质层的引入以减小吸收为代价略微提高了记录堆叠的反射性。然而，还可以预见的是，为进行补偿，可使用更薄的记录层(通常厚度为100nm)或者具有更高k值的染料，所述k值是复数折射率的虚数部分。
任意的，尤其是为了提高整个记录堆叠的稳定性，可在记录层和衬底层之间提供另一电介质层。在记录层和金属反射层之间的至少第一电介质层厚度低于50nm，尤其低于25nm。
优选的金属反射层材料基本包括银(Ag)。然而，也可使用诸如Al、Au或其它金属的其它材料。
附图说明
现在，将参考附图更加详细的对本发明进行阐明，其中；
图1示出了具有100nm Ag层的DVD+R盘的功率余量；
图2示出了具有10nm Ag层的DVD+R盘的功率余量；
图3a示出了对常规一次写记录载体施加了直流功率电平之后的温度分布；
图3b示出了对根据本发明的一次写光学记录载体施加了直流功率电平之后的温度分布；
图4示出了根据本发明的记录载体的另一实施例的热分布；
图5示出了根据本发明的记录载体的再一实施例的热分布；
图6示出了根据本发明的记录载体的第一实施例的示意布局图；
图7示出了根据本发明的记录载体的第二实施例的示意布局图；
具体实施方式
图1示出了厚反射层(尤其是100nm Ag层)情况下，DVD+R盘中的典型功率余量。所示出的是在写入功率m W上百分比抖动，所述写入功率用于引导和跟踪被记录在盘上的位的边缘。该功率余量需要同图2所示的薄反射层的功率余量相比较，图2的DVD+R中由银制成反射层，其厚度为10nm。可以看出，同图1中示出的使用厚反射层所得到的抖动相比，在写入功率较宽范围内图2的抖动小的多，尤其对于更高的写入功率。
在图3a中示出了在对于常规DVD+R记录堆叠施加了直流功率电平之后的温度分布，所述常规DVD+R记录堆叠具有由银(100nm)制成的厚反射层1、染料记录层2(100nm)和聚碳酸脂衬底层3(100nm)。图3a中没有示出的是在厚反射层上通过紫外线可固化漆(lacquer)胶合的伪衬底。由于染料材料具有不良热传导性，因此通过反射层1的有效冷却导致在反射层1和记录层2之间界面附近温度梯度很大。由该较陡的梯度可产生机械应力，该机械应力可导致在反射层1和记录层2之间的界面处分层。
通过减小反射层1的厚度，冷却效率变得较低，但是结果非常有利地使得温度梯度(正如可从图3b看出得)变得更加平缓，图3b中示出了对根据本发明第一实施例的记录载体施加了直流功率电平之后的温度分布。此处反射层厚度接近10nm，并且由银制成。
图4示出了根据本发明第二实施例的记录载体的热分布。其中，同图3a所示的记录载体相比，在此处厚度为40nm的反射层1和记录层2之间提供了由厚度为20nm的SiO2制成的附加电介质层5。图4中没有示出的是在40nm厚反射层上通过紫外线可固化漆胶合的伪衬底。此外，记录层2具有80nm的较小厚度，正如从可以达到的略微更高的最大值温度可以显而易见的，80nm的较小厚度导致更加有效的吸收。附加电介质层5的引入进一步减小了反射层1和记录层2之间的温度梯度，并且因此减小了机械应力，阻止了分层。
图5示出了根据本发明第三实施例的记录载体的热分布。其中由Ag制成的反射层厚度为30nm，该30nm的厚度仍然获得了相当高的反射，但是热容量以3.3的因数减少。然而，在本发明中，热梯度也变的不太陡了。图5中没有示出的在厚反射层上通过紫外线可固化漆胶合的伪衬底。
图6和图7示意性地示出了根据本发明的记录载体的两个实施例。图6示出了对于图5所示温度曲线的实施例。除了图5所示的三层之外，还示出了第二聚碳酸脂衬底层4(大约0.6mm)，该第二聚碳酸脂衬底层在反射层1上通过紫外线可固化漆胶合。图7示出了对于图4中所示温度曲线的实施例。除了图4所示的4层之外，还示出了第二聚碳酸脂衬底层4(大约0.6mm)。
图中示出的实施例应理解为实例。多个其它实施例、不同层厚度以及次序的更多变化和更多层的提供都是可能的。本发明提供了获得一次写光学记录载体的更宽功率余量的优点，尤其对于DVD+R媒介。此外，转到更高记录速度的可能性也是存在的。另外，溅射较薄反射层所花费的时间较短，即可快速制造并可获得制造成本的降低。

Claims (8)

1.一次写光学记录载体，包括：
衬底层(3)；
在衬底层(3)上的有机染料材料的记录层(2)；和
在记录层(2)上的厚度低于50nm的金属反射层(1)。
2.根据权利要求1所述的记录载体，还包括在所述记录层(2)和所述金属反射层(1)之间的电介质层(5)。
3.根据权利要求2所述的记录载体，其中所述电介质层(5)厚度低于50nm。
4.根据权利要求1所述的记录载体，还包括在所述记录层(2)和所述衬底层(3)之间的电介质层。
5.根据权利要求1所述的记录载体，其中所述金属反射层(1)基本由Ag、Al、Au构成的组中的材料制成。
6.根据权利要求1所述的记录载体，其中所述金属反射层(1)厚度低于30nm。
7.根据权利要求2所述的记录载体，其中所述电介质层(5)厚度低于25nm。
8.根据权利要求1所述的记录载体，其中所述金属反射层(1)基本由Ag制成。
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5419939A (en) * 1992-09-24 1995-05-30 Tdk Corporation Optical recording disk
JPH09286175A (ja) * 1996-04-23 1997-11-04 Mitsubishi Chem Corp 光記録媒体

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0827979B2 (ja) 1988-09-24 1996-03-21 太陽誘電株式会社 光情報記録媒体
JP2523907B2 (ja) * 1989-12-07 1996-08-14 松下電器産業株式会社 光学情報記録再生消去部材
JP3026357B2 (ja) * 1990-10-04 2000-03-27 パイオニア株式会社 光記録媒体
JP3026356B2 (ja) * 1990-10-04 2000-03-27 パイオニア株式会社 光記録媒体
JPH04252441A (ja) * 1991-01-28 1992-09-08 Hitachi Maxell Ltd 光情報記録媒体
JPH04252440A (ja) * 1991-01-28 1992-09-08 Hitachi Maxell Ltd 光情報記録媒体
JPH05579A (ja) * 1991-06-25 1993-01-08 Pioneer Electron Corp 光記録媒体
JPH05250728A (ja) * 1992-03-09 1993-09-28 Pioneer Video Corp 光ディスク
JPH06195746A (ja) 1992-09-24 1994-07-15 Tdk Corp 光記録ディスク
KR0160729B1 (ko) * 1995-10-31 1999-01-15 김광호 상변화형 광디스크
DE59710824D1 (de) * 1996-05-03 2003-11-13 Ciba Sc Holding Ag Optische Speichermedien mit hoher Kapazität, die Xanthenfarbstoffe enthalten
US5914214A (en) * 1996-12-06 1999-06-22 Matsushita Electric Industrial Co., Ltd. Method for manufacturing an optical information recording medium
US6103331A (en) * 1997-09-26 2000-08-15 Fuji Electric Co., Ltd. Optical recording medium comprising organic dye thin film
US6007887A (en) * 1997-12-15 1999-12-28 Eastman Kodak Company Performance recording media for recordable element using silver reflector
TW411436B (en) * 1998-08-18 2000-11-11 Ind Tech Res Inst Improved structure of optically recordable media and its manufacture method
TWI237820B (en) * 2000-04-17 2005-08-11 Mitsubishi Chem Corp Optical recording medium
JP2002163838A (ja) * 2000-09-14 2002-06-07 Tdk Corp 光情報媒体
TWI292910B (zh) 2001-06-11 2008-01-21 Sony Corp

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5419939A (en) * 1992-09-24 1995-05-30 Tdk Corporation Optical recording disk
JPH09286175A (ja) * 1996-04-23 1997-11-04 Mitsubishi Chem Corp 光記録媒体

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