| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method and apparatus which can accurately break or cut an object composed of a material transparent or translucent with respect to a laser beam. <P>SOLUTION: This is a method to help breaking of the object transparent or translucent with respect to a laser beam. In this method, a physical or chemical change is caused inside the object by irradiating it with a laser beam and specifying the breaking position of the object as well as reducing the breaking resistance of the object at that breaking position. The laser beam may be a femtosecond pulsed laser beam. By the irradiation of the laser beam, there is continuously or intermittently caused physical or chemical change along the surface inside the object. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
