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    Method of manufacturing an optical disk substrate, an apparatus of manufacturing an optical disk and an optical disk substrate
    1.
    发明授权
    Method of manufacturing an optical disk substrate, an apparatus of manufacturing an optical disk and an optical disk substrate 失效
    光盘基板的制造方法，光盘的制造装置以及光盘基板

    公开(公告)号：US06485808B2

    公开(公告)日：2002-11-26

    申请号：US09756799

    申请日：2001-01-10

    申请人： Yumiko Anzai ,  Motoyasu Terao ,  Tetsuya Nishida ,  Mokoto Miyamoto

    发明人： Yumiko Anzai ,  Motoyasu Terao ,  Tetsuya Nishida ,  Mokoto Miyamoto

    IPC分类号： B32B302

    CPC分类号： B32B27/36 ,  B29C59/16 ,  B29C2035/0827 ,  B29K2069/00 ,  B29L2017/003 ,  B29L2017/005 ,  B32B27/28 ,  G11B7/2433 ,  G11B7/252 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/258 ,  G11B7/2585 ,  G11B7/26 ,  G11B2007/2571 ,  G11B2007/25713 ,  Y10T428/21

    摘要： An optical disk for recording/reproducing information tends to have fine irregularities on its substrate surface that cause an increase in noise, which irregularities are formed during the process of forming the recording layer, which is capable of changing physically or chemically in response to irradiation of laser light. This problem can deteriorate the recording and reproduction characteristics and bring about a defect on a life test or on the storage ability on the disk. To solve this problem, a method of manufacturing an optical disk having a pits-and-lands pattern employs an organic material which is modified by ultraviolet light irradiation. The transmission of the substrate is not more than 50% at one wavelength in a wavelength region from 300 to 375 nm. As a result of the ultraviolet ray irradiation, the surface of an optical disk substrate is smoothed so as to effect a reduction of the substrate noise and an improvement of the recording and reproduction characteristics. Moreover, adhesiveness between the substrate and another layer formed thereon is improved, so that the number of generated defects is reduced.

    摘要翻译： 用于记录/再现信息的光盘倾向于在其基板表面上具有微小的不规则性，导致噪声增加，在形成记录层的过程中形成不规则性，其能够响应于辐射而物理或化学变化 激光灯。 这个问题可能使记录和再现特性恶化，并且在寿命测试或磁盘上的存储能力上引起缺陷。 为了解决这个问题，制造具有凹凸图案的光盘的方法采用通过紫外线照射改性的有机材料。 在300〜375nm的波长范围内的一个波长的基板的透射率不超过50％。 作为紫外线照射的结果，光盘基板的表面被平滑化，以便实现基板噪声的降低和记录和再现特性的提高。 此外，基板与其上形成的另一层之间的粘附性得到改善，从而减少了所产生的缺陷的数量。