发明名称 |
Method for machining glass substrate |
摘要 |
In the present invention, a surface 7 of a glass substrate 1 is irradiated with a laser beam 2 to thereby form a V-shaped groove 6. At that time, the laser beam 2 is condensed outside and above the glass substrate 1. The distance between a beam-condensing point 4 of the laser beam 2 and the surface 7 of the glass substrate 1 is changed to thereby make it possible to change the angle between opposite side surfaces of the V-shaped groove. The angle is in a range of from 30 degrees to 120 degrees. Further, the laser beam used in the present invention is pulsed light, preferably with a pulse width not larger than 10 picoseconds.
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申请公布号 |
US7007512(B2) |
申请公布日期 |
2006.03.07 |
申请号 |
US20010987031 |
申请日期 |
2001.11.13 |
申请人 |
NIPPON SHEET GLASS CO., LTD. |
发明人 |
KAMADA KENJI;OHTA KOJI;YAMAGUCHI JUN;KOYAMA TADASHI |
分类号 |
B23K26/00;C03C15/00;B23K26/06;C03C23/00 |
主分类号 |
B23K26/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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