公开(公告)号：US07435468B2

公开(公告)日：2008-10-14

申请号：US10849522

申请日：2004-05-20

申请人： Joo-ho Kim ,  In-sik Park ,  Masashi Kuwahara ,  Junji Tominaga ,  Takayuki Sima

发明人： Joo-ho Kim ,  In-sik Park ,  Masashi Kuwahara ,  Junji Tominaga ,  Takayuki Sima

IPC分类号： B32B9/00

CPC分类号： G11B7/00452 ,  G11B7/261 ,  G11B7/263 ,  Y10S428/913

摘要： A multi-layer structure whose volume changes when a temperature exceeds a predetermined threshold value, a microscopic structure drawing method that involves emitting a laser beam onto the multi-layer structure to create a temperature distribution within a beam spot and performing microscopic recording on a portion of the beam spot having a temperature higher than the threshold value, an optical disc master, and a mastering method using the same, where the multi-layer structure includes a substrate and a transformation layer formed on the substrate, wherein a volume of a portion of the transformation layer irradiated by a laser beam changes when the temperature of the portion exceeds a predetermined temperature. The microscopic structure drawing method includes emitting the laser beam onto a predetermined region of the transformation layer and heating the region of the transformation layer irradiated by the laser beam beyond a predetermined temperature so that the heated region can undergo a volume change.

摘要翻译： 一种当温度超过预定阈值时其体积变化的多层结构，涉及在多层结构上发射激光以产生束斑内的温度分布并在部分上进行微观记录的显微结构拉伸方法 具有温度高于阈值的光斑，光盘母盘及其使用方法，其中所述多层结构包括衬底和形成在所述衬底上的相变层，其中所述部分的体积 当部分的温度超过预定温度时，由激光束照射的变换层的变化将发生变化。 微观结构绘制方法包括将激光束发射到转变层的预定区域上，并将由激光束照射的相变层的区域加热超过预定温度，使得加热区域能够经历体积变化。