CN1729523A - 双堆栈光学数据存储介质及其使用 - Google Patents

双堆栈光学数据存储介质及其使用 Download PDF

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CN1729523A
CN1729523A CNA2003801066241A CN200380106624A CN1729523A CN 1729523 A CN1729523 A CN 1729523A CN A2003801066241 A CNA2003801066241 A CN A2003801066241A CN 200380106624 A CN200380106624 A CN 200380106624A CN 1729523 A CN1729523 A CN 1729523A
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storehouse
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R·J·A·范登奥特拉亚尔
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Koninklijke Philips NV
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Abstract

描述了一种通过聚焦辐射束(29)记录和读取的双堆栈光学数据存储介质(30)。所述辐射束经由第一辐射束入射面(21)进入该介质(30)。该介质包含至少第一衬底(1a)，该第一衬底(1a)的至少一侧带有包含第一信息层(3)的第一层堆栈(2)，和包含第二信息层的第二层堆栈(5)。第二层堆栈(5)存在于比第一层堆栈(2)距离第一辐射束入射面(21)更远的位置。第一透明间隔层(4)存在于第一层堆栈(2)和第二层堆栈(5)之间。第一信息层(3)为只读类型层或有机一次写类型层，所述第二层堆栈(5)由最多三个相邻的无机金属材料层构成。这样就得到了一种光学数据存储介质(30)，该光学数据存储介质(30)同所述介质的双堆栈ROM类型兼容并有简单的第二层堆栈(5)。

Description

双堆栈光学数据存储介质及其使用
本发明涉及通过经由第一辐射束入射面进入介质的聚焦辐射束进行记录和读取的双堆栈光学数据存储介质，所述介质至少包含第一衬底，该第一衬底的至少一侧带有：
-第一层堆栈，包含第一信息层，
-第二层堆栈，包含第二信息层，所述第二层堆栈存在于比第一层堆栈距第一辐射束入射面更远的位置，
-第一层堆栈和第二层堆栈之间的第一透明间隔层。
本发明还涉及了这样的双堆栈光学数据存储介质的使用。
在日本专利申请JP-11066622中公知了开始段落所述的光学记录介质的实施例。
只读数字多功能光盘(DVD-ROM)已经被证实是一种非常成功的光学存储介质。DVD-ROM标准规范描述了单堆栈光盘(A型；数据容量＝4.7GB)和双堆栈光盘(C型；数据容量＝8.5GB)。与A型和C型DVD-ROM标准兼容的一次写和/或可重写介质是令人非常满意。此外，还描述了单堆栈光盘双面类型(B型；数据容量＝9.4GB)和双堆栈光盘双面类型(D型；数据容量＝17.0GB)。与DVD-ROM标准兼容的可记录和/或可重写介质也是非常令人满意的。近来，已介绍了一种具有甚至更高存储容量的被称作蓝光光盘(BD)的新格式。该系统采用了蓝色辐射束的波长和聚焦辐射束的相对高的数值孔径。对于该格式，还将介绍一次写(R)和可重写(RW)类型。
对于单堆栈DVD(A型)，已经定义了兼容的可记录格式(DVD+R)和几乎兼容的可重写格式(DVD+RW)。对于双堆栈DVD(C型)，在本发明申请人提交的非提前公开的(non-prepublished)欧洲专利申请no.02075226.7(PHNL020086)中已介绍了基于染料材料的可兼容的双堆栈可记录DVD(+R)介质。双堆栈可重写DVD(+RW)介质也是可行的，但是因为其使用的可重写材料(比如相变化材料)的受限的反射和透射，所以看来并不能制造出与DVD-ROM标准兼容的这样的介质。同单层DVD+R相比较，双堆栈DVD+R的数据容量的增加以及其与只读标准的兼容性是明显有利的。由于兼容性的原因，对于第二层堆栈来讲需要足够的反射和足够的调制。使用有机染料材料可以满足这些要求。然而，产生基于染料材料的第二层堆栈要包括至少三个沉积步骤：1)(金属)镜的沉积，例如，通过溅射；2)染料层的沉积，例如，通过旋转涂膜或者蒸发；3)保护性覆盖层的沉积，例如通过旋转涂膜或者溅射。通常用于如DVD+RW的可重写介质中的带有电介质干涉层的无机相变堆栈(替代基于染料的可记录堆栈的)的使用，由于它涉及至少四个层的溅射的事实而从成本的观点来看并不是非常具有吸引力。此外，使用这种类型的无机可记录堆栈来共同满足反射和调制规定仍然存在着问题。
本发明的一个目标是提供开始段落中提及类型的双堆栈光学数据存储介质，其同所述介质的双堆栈ROM类型兼容且具有简单的第二层堆栈。
该目标可以通过根据本发明的双堆栈光学数据存储介质得以实现，其特征在于，第一信息层从由只读层和有机一次写层构成的类型组中选择，第二层堆栈由最多三个相邻的无机金属材料层构成。由于对于第二层队堆栈不存在透射要求，因此可以使用除了有机染料之外的材料来满足第二层堆栈的反射和调制需要。当然，从生产和/或成本和/或可靠性的观点来看，基于该材料的堆栈同基于有机染料材料的堆栈相比必需具有同等或者更大的吸引力。金属或合金层的沉积是一种常用的技术，并且通常可以在专用于随后金属或金属合金层的沉积的溅射设备中得到非常有效地实施。使用单个溅射设备可以沉积三层。对于第二层堆栈的沉积不需要从干处理到湿处理的转换。这是使用不能通过溅射过程沉积的有机染料层的一个明显的优势。申请人已经认识到，使用最多三个无机金属层堆栈的介质的第二层堆栈设计是可能的，这样满足了这种堆栈的要求使得与所述介质的双层ROM类型兼容。
申请人还进一步认识到双堆栈可记录即一次写介质的问题在于，制造者要求放在介质上的预记录的只读数据必需依照顺序逐个介质的进行写入。通过提供其中第一和第二信息层之一为带有预凸起信息的只读层(例如在普通DVD-ROM中)的介质，这个问题可得到解决。申请人进一步认识到，利用根据该发明的记录层的不同类型的结合仍然可能得到与例如双层(＝双堆栈)DVD-ROM标准兼容的双堆栈介质。例如，C型DVD-ROM标准的重要参数是存储层的反射率，该反射率对于两层中的每层来讲必须在18％至30％之间。因此，最靠近可兼容双堆栈DVD+R介质的辐射束入射面的第一信息层应该具有高透射、充分反射和低吸收。对于基于例如染料材料的一次写层或只读层可以满足这些标准，但是具有相对高的光学吸收的金属一次写层来讲不能满足这些标准。换句话说，第一信息层是一次写层例如具有相对低吸收的基于染料的层，或者是只读ROM层(低吸收)，而第二层堆栈是根据本发明的堆栈。需要注意的是对于第一信息层，在辐射束波长处具有相对低吸收的任何类型的有机层都是适合的，对于染料层没有特别的限制。
在一实施例中，第二层堆栈是相变合金层和金属反射层的双层，金属反射层存在于比相变合金层距离辐射束入射面更近的位置。无机第二层堆栈可以由两个溅射层构成，例如为提高反射率，在相变层之上具有金属层。
在一实施例中，金属反射层主要包含Al。对于金属层，在将第二层堆栈同第一层堆栈结合起来之前，由于铝(Al)暴露在空气或者氧化环境中形成了一个非常薄的、封闭的、化学惰性的氧化铝层，而受到特别的关注。这种氧化铝层的特殊属性消除了沉积附加保护覆盖层的需要。
优选的相变层是包含Sb和Te的合金。该合成物的相变层相对容易沉积。优选的合成物是Sb2Te3和材料的属性为广为人知的稳定的化合物。所述无机堆栈的物理记录机制可包括标记形成，该标记是在温度升高时的写入期间通过合金和/或相变和/或烧结和/或分离和/或气泡生成和/或烧蚀和/或空穴生成来形成。
优选的Al层厚度在5-10nm范围中选择，相变层的厚度在10-40nm范围中选择。这些范围内的层的厚度提供了可写性、敏感度和反射率的最佳特性。可写性例如关系到所写标记的调制深度，也就是在通过聚焦辐射束的斑点读取时堆栈中的堆栈未写部分和所写标记之间的反射标准差。
在一特殊的实施例中，该介质还包含：同第一辐射束入射面相对的第二辐射束入射面，和
-第三层堆栈，其包含了从只读层和有机一次写层构成的组中选取的第三信息层，
-第四层堆栈，其存在于比第三层堆栈距离第二辐射束入射面更远的位置，所述第四层堆栈由最多三个相邻的无机金属材料层构成，和
-第三层堆栈和第四层堆栈之间的第二透明间隔层。单面双堆栈光学数据存储介质的最大数据容量受到限制，比如对于DVD为8.5GB。为了在一张光盘上以DVD格式存储包括额外特性的两种类型的电影(例如像在美国分配的电影通常采用的全屏幕型和宽屏幕型)，8.5GB的存储容量通常是不够的。因此，提出了可兼容的双面双堆栈光学记录介质。所提出的介质同其只读类型例如D型DVD-ROM标准相兼容，从而具有两倍的总存储容量，例如在D型DVD-ROM的情况下为17.0GB。
对于与双堆栈DVD-ROM规范兼容的光学数据存储介质，在辐射束的波长近似655nm时，其堆栈的有效反射率至少为0.18。
对于与双堆栈BD规范兼容的光学数据存储介质，在辐射束的波长近似405nm时，双层BD-RW的堆栈的有效反射水平在0.04至0.08的范围之间，单层BD-RW的堆栈的有效反射水平在0.12至0.24的范围之间。
结合附图，将更加详细阐述本发明，其中：
图1示出根据本发明的双堆栈光学数据存储介质的实施例的示意布局图，
图2示出根据本发明的双面双堆栈光学数据存储介质的实施例的示意布局图。
在图1中示出通过聚焦辐射束29进行记录和读取的双堆栈光学数据存储介质30。辐射束29经第一辐射束入射面21进入该介质30。该介质包含至少第一衬底1a，该第一衬底1a至少一侧上带有包含第一信息层3的第一层堆栈2、和第二层堆栈5，该第二层堆栈5存在于比第一层堆栈2距离第一辐射束入射面21更远的位置。第一透明间隔层4存在于第一层堆栈2和第二层堆栈5之间。第一信息层3为只读层或有机一次写层，而第二层堆栈5由最多三个相邻的无机金属材料层构成。现在将更加详细讨论该实施例。
衬底1a在第一层堆栈2一侧的表面上有伺服预刻沟槽或引导沟槽图案，并且该衬底1a由聚碳酸酯(n＝1.58)制成，其厚度为580μm。伺服预刻沟槽用来在记录和/或读取期间引导聚焦辐射束29。第一层堆栈2是一次写堆栈，其包含由厚度为90nm的花青染料或偶氮染料(n＝2.2；k＝0.01)制成的第一信息层3。该染料可以通过旋转涂膜或蒸发进行沉积。厚度为8nm的Au(n＝0.28；k＝3.9)的半透明反射层存在于第一信息层3和间隔层4之间，并通过例如溅射来沉积。第一透明间隔层4由厚度为40-60μm的可固化UV树脂或压敏粘合剂(PSA)(n＝1.5)制成。第二层堆栈5是厚度为12nm的Sb2Te3(n＝2.9；k＝4.8)的相变合金层6b和厚度为6nm的Al(n＝1.97；k＝7.83)的金属反射层6a的双层。金属反射Al层6a存在于比相变合金Sb2Te3层6b距离辐射束入射面21更近的位置。由聚碳酸酯(n＝1.58)制成的厚度为580μm的第二衬底1b同第二层堆栈5相邻。衬底1b在第二层堆栈5的一侧的表面上有伺服预刻沟槽或引导沟槽图案。
所列光学参数n和k是辐射束波长λ＝655nm时的情况。计算出的反射和透射为：
第一层堆栈2：
反射(R1)＝20％
透射(T1)＝64％
源自第一层堆栈2的有效反射：＝R1＝20％
第二层堆栈5：
反射(R2)＝62％
源自第二层堆栈5的有效反射：＝T1×T1×R2＝25％
完全与DVD-ROM标准兼容的两层的有效反射：18％＜R＜30％。
本实施例的一个变型中，第一层堆栈包含只读信息层。这样的信息层例如为沉积在预刻沟槽图案中的11nm的Au层。这种情况下，R1＝22％、T1＝61％、R2＝62％并且源自第二层堆栈5的有效反射：＝T1×T1×R2＝23％。
注意到，衬底1a可以用相对薄的、例如100μm的已旋转涂膜和已固化的UV可固化材料的覆盖层或带有压敏粘合剂(PSA)的塑料板替代。这样的覆盖层例如用于光学数据存储介质的高密度BD类型。
在图2中示出与D型DVD-ROM标准兼容的双面双堆栈光学数据存储介质30。参考标记1a、21、2、3、5、6a、6b对应于图1的描述。第一透明间隔层4由UV可固化树脂制成，且在第二层堆栈5一侧的表面带有伺服预刻沟槽或引导沟槽图案。图1的衬底1b可以由耦合层12替代。该介质还包含了同第一辐射束入射面21相对的第二辐射束入射面22，用于在第三层堆栈7中进行记录和读取，该第三层堆栈7包含了从只读层和有机一次写层构成的组中选择的第三信息层8，并且该介质包含第四层堆栈10，其存在于比第三层堆栈7距离第二辐射束入射面更远的位置。该第四层堆栈10由最多三个相邻的无机金属材料层构成。
第二透明间隔层9存在于第三层堆栈7和第四层堆栈10之间。层和堆栈1b、7、8、9、10、11a和11b分别同层和堆栈1a、2、3、4、5、6a、6b相同。因此，双面双堆栈介质配备有两面相同的设计，其两面通过可以是厚度为20-300μm的PSA的耦合层12结合在一起。耦合层12的厚度可以根据衬底1a、1b和间隔层4和9的厚度进行调整，以便使介质30的总厚度不超过DVD光盘标准中规定的最大厚度、也就是1500μm。但是，为防止用于在信息层中进行读取和写入的聚焦辐射束29中出现过大的光学像差，衬底的厚度范围也受到限制。
第二层堆栈5的预刻沟槽(或引导沟槽)和第四层堆栈10也存在于耦合层12中，该情况下耦合层可由双面均带有预刻沟槽的塑料板构成。这种情况下，间隔层4和9可由不带预刻沟槽的UV可固化树脂或压敏粘合剂(PSA)构成。
两个覆盖层存在于图2的衬底1a和1b的位置且至少一个衬底(例如1a或1a/1b)存在于第二和第四层堆栈5和10而不是耦合层12之间的情况下，双面BD类型也是可能的。
应当注意到的是上面讨论的实施例阐述了而并非限制了本发明，在没有脱离所附权利要求的范围的情况下，那些本领域的技术人员能够设计出许多可以替代的实施例。在权利要求中，在括号之间放置的任何参考标记也不构成对本权利要求的限制。词语“包含”并不将权利要求中所列的元件和步骤之外的其他元件和步骤的出现排除在外。元件前面的词语“一个”并不排除多个这样的元件的出现。事实上在彼此不同的从属权利要求中引用的某种措施并不表明这些措施的结合不能有效的使用。
根据本发明，描述了通过聚焦辐射束进行记录和读取的双堆栈光学数据存储介质。辐射束经过第一辐射束入射面进入该介质。该介质包含至少第一衬底，该第一衬底的至少一侧带有包含第一信息层的第一层堆栈、和包含第二信息层的第二层堆栈。第二层堆栈存在于比第一层堆栈距离第一辐射束入射面更远的位置。第一透明间隔层存在于第一层堆栈和第二层堆栈之间。第一信息层是只读类型层或有机一次写类型层，且第二层堆栈由最多三个相邻的无机金属材料层构成。这样就得到了一种光学数据存储介质，该光学数据存储介质同所述介质的双堆栈ROM类型兼容并有简单的第二层堆栈。

Claims (8)

1.通过经由第一辐射束入射面进入介质的聚焦辐射束进行记录和读取的双堆栈光学数据存储介质，所述介质具有至少第一衬底，该第一衬底的至少一侧带有：
-第一层堆栈，其包含第一信息层，
-第二层堆栈，其包含第二信息层，所述第二层堆栈存在于比第一层堆栈距离第一辐射束入射面更远的位置，
-在第一层堆栈和第二层堆栈之间的第一透明间隔层，
其特征在于第一信息层是从由只读层和有机一次写层构成的类型组中选出的层，且第二层堆栈由最多三个相邻的无机金属材料层构成。
2.权利要求1中所述的双堆栈光学数据存储介质，其中第二层堆栈是相变合金层和金属反射层的双层，所述金属反射层存在于比相变合金层距离辐射束入射面更近的位置。
3.权利要求1或2中任何一项所述的双堆栈光学数据存储介质，其中金属反射层主要包含Al。
4.权利要求1-3中任何一项所述的双堆栈光学数据存储介质，其中相变层是含有Sb和Te的合金。
5.权利要求3和4中所述的双堆栈光学数据存储介质，其中Al层的厚度在5-10nm的范围中选择，而相变层的厚度在10-40nm的范围中选择。
6.权利要求1-5中任何一项所述的双堆栈光学数据存储介质，其中介质还包含同第一辐射束入射面相对的第二辐射束入射面，和
-第三层堆栈，其包含从由只读层和有机一次写层构成的组中选择的第三信息层，
-第四层堆栈，其存在于比第三层堆栈距离第二辐射束入射面更远的位置，所述第四层堆栈由最多三个相邻的无机金属材料层构成，和
-在第三层堆栈和第四层堆栈之间的第二透明间隔层。
7.权利要求1-6中任何一项所述的双堆栈光学数据存储介质，其中在辐射束的波长为近似655nm时，所述堆栈的有效反射水平至少为0.18。
8.前述权利要求中任何一项所述的双堆栈光学数据存储介质在适于读取所述介质的双堆栈ROM类型的光学数据存储装置中的使用。
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JP2007527077A (ja) * 2003-06-30 2007-09-20 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ レコードキャリアにデータを記録する方法及びレコーダ
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EP1788560A1 (en) * 2005-11-14 2007-05-23 Ritek Corporation Dual-layer recordable optical disc and manufacturing method thereof
JP4625137B2 (ja) * 2007-07-11 2011-02-02 シャープ株式会社 光情報記録媒体

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5540966A (en) * 1994-08-05 1996-07-30 Minnesota Mining And Manufacturing Company Dual layer optical medium having partially reflecting thin film layer
JP3076230B2 (ja) * 1995-10-13 2000-08-14 日本電気株式会社 光ディスク
KR100268495B1 (ko) * 1997-04-18 2000-10-16 윤종용 재생전용고밀도광디스크
JPH11195243A (ja) * 1997-12-26 1999-07-21 Sony Corp 多層光ディスク及び記録再生装置
US6007889A (en) * 1998-06-22 1999-12-28 Target Technology, Llc Metal alloys for the reflective or the semi-reflective layer of an optical storage medium
US6117284A (en) * 1998-09-28 2000-09-12 Wea Manufacturing, Inc. Dual-layer DVD disc, and method and apparatus for making same
JP2000173107A (ja) * 1998-12-10 2000-06-23 Toshiba Corp カーナビゲーションシステム用情報記録媒体
JP2000215445A (ja) * 1999-01-14 2000-08-04 Hitachi Maxell Ltd 光ディスクとかかる光ディスクを用いたソフトウェアバ―ジョンアップ方法
US6177168B1 (en) * 1999-03-26 2001-01-23 Warner Music Group, Inc. DVD disc with four information layers, and method for making same
KR20010075534A (ko) * 1999-08-31 2001-08-09 니시무로 타이죠 광디스크와 이 광디스크로부터 데이터를 재생하는 방법 및장치
JP4347215B2 (ja) * 2002-06-18 2009-10-21 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 光学データ記憶媒体及び当該記憶媒体の使用方法
JP4230454B2 (ja) * 2002-08-29 2009-02-25 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ マルチスタック光学データ記憶媒体及びかかる媒体の使用方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113377466A (zh) * 2021-06-29 2021-09-10 展讯通信(天津)有限公司 算法执行方法、装置和电子设备
CN113377466B (zh) * 2021-06-29 2022-11-25 展讯通信(天津)有限公司 算法执行方法、装置和电子设备

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TW200506871A (en) 2005-02-16
KR20050093780A (ko) 2005-09-23

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