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公开(公告)号：EP1628296A2
公开(公告)日：2006-02-22
申请号：EP05025176.8
申请日：1998-11-13
发明人： Ohno, Takashi, c/o Mitsubishi Chemical Corp. , Komatsu, Masao Mitsubishi Chem. Infonics Pte Ltd. , Nobukuni, Natsuko, c/o Mitsubishi Chemical Corp.
IPC分类号： G11B7/24
CPC分类号： G11B7/252 , G11B7/0062 , G11B7/24 , G11B7/243 , G11B7/2534 , G11B7/2542 , G11B7/257 , G11B7/2585 , G11B7/259 , G11B2007/24308 , G11B2007/2431 , G11B2007/24314 , G11B2007/24316 , G11B2007/25706 , G11B2007/2571 , G11B2007/25715 , G11B2007/25716 , Y10S428/913 , Y10S430/146 , Y10T428/21 , Y10T428/31678
摘要： An optical information recording medium comprising a substrate, a recording layer, a protective layer containing a sulfur atom, an intermediate layer in contact with the protective layer and a reflective layer containing silver in an amount of at least 70 atomic % in contact with the intermediate layer, wherein the intermediate layer comprises at least one selected from a metal oxide, a metal nitride, a metal carbide, a semiconductor oxide, a semiconductor nitride, a semiconductor carbide and carbon, which have less reactivity to silver and sulfur.
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公开(公告)号：EP1630803A2
公开(公告)日：2006-03-01
申请号：EP05025175.0
申请日：1997-10-02
CPC分类号： G11B7/243 , G11B7/0045 , G11B7/00454 , G11B7/0062 , G11B7/126 , G11B7/24067 , G11B7/2433 , G11B7/252 , G11B7/2534 , G11B7/2542 , G11B7/257 , G11B7/258 , G11B7/2585 , G11B7/259 , G11B7/2595 , G11B7/268 , G11B2007/24304 , G11B2007/2431 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316 , Y10S430/146 , Y10T428/21
摘要： An optical information recording medium having a multilayer structure comprising at least a lower protective layer, a phase-change type optical recording layer, an upper protective layer and a reflective layer, on a substrate, wherein the phase-change type optical recording layer has a composition of Ge f (Sb d Te 1-d ) 1-f , where 0.60 ≤ d ≤ 0.85, and 0.01 ≤ f ≤ 0.20 and has a thickness of from 15 to 30 nm, the protective layer has a thickness of from 10 to 50 nm, and the reflective layer is made of a metal containing at least 90 atomic % of Au, Ag or Al and has a thickness of from 50 to 500 nm, wherein a crystallization accelerating layer which is per se crystalline during deposition, is formed between the phase-change type optical recording layer and the lower protective layer in a thickness of from 0.2 to 10 nm, and an initialization operation is carried out by irradiating an energy beam to the recording layer for crystallization.
摘要翻译： 一种光学信息记录介质，具有在基板上至少包含下保护层，相变型光记录层，上保护层和反射层的多层结构，其中相变型光记录层具有 Ge f（Sb d Te 1-d）1-f的组成，其中0.60‰¤‰‰0.85和0.01‰‰‰0.20，厚度为15至30 nm，保护层厚度 为10〜50nm，并且所述反射层由含有至少90原子％的Au，Ag或Al的金属制成，并且具有50〜500nm的厚度，其中结晶促进层本身为结晶促进层 在相变型光记录层和下保护层之间形成厚度为0.2〜10nm的沉积，通过向记录层照射结晶来进行初始化动作。
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公开(公告)号：EP0813189A1
公开(公告)日：1997-12-17
申请号：EP97109702.7
申请日：1997-06-13
发明人： Horie, Michikazu,c/o Mitsubishi Chemical Corp. , Ohno, Takashi, c/o Mitsubishi Chemical Corp. , Kubo, Hideyuki, c/o Mitsubishi Chemical Corp. , Kubo, Masea, c/o Mitsubishi Chemical Corp. , Mizuno, Hironobu, c/o Mitsubishi Chemical Corp. , Mizuno, Masaaki, c/o Mitsubishi Chemical Corp. , Kunitomo, Haruo , Takada, Ken-Ichi
CPC分类号： G11B27/24 , G11B7/00557 , G11B7/006 , G11B7/00745 , G11B7/24079 , G11B7/24082 , G11B27/3027 , G11B2220/216 , G11B2220/218 , G11B2220/2545
摘要： An optical phase-change disc comprises a substrate having thereon a spiral groove or concentric grooves for guiding a focused light beam, and a layer structure including a recording layer and protective layers sandwiching therebetween the recording layer. The groove has wobble for recording ATIP (absolute time information) or ADIP (address information). The following relationship between the groove width GW, beam diameter R 0 and wobble amplitude a w : 0.25 ≤ GW/R 0 ≤ 0.45 or 0.65 ≤ GW/R 0 ; and 0.03 ≤ a w /GW ≤ 0.08 hold for preventing distortion of the groove caused by repeated overwriting operation to improve reliability of the optical disc.
摘要翻译： 光学相变盘包括其上具有用于引导聚焦光束的螺旋槽或同心凹槽的基板，以及包括记录层的层结构和夹在其间的记录层的保护层。 凹槽具有用于记录ATIP（绝对时间信息）或ADIP（地址信息）的摆动。 凹槽宽度GW，光束直径R0和摆动幅度aw：
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