发明名称 |
Laser-processable glass substrate |
摘要 |
<p>A sheet of silicate glass having a thickness of 2mm and composed mainly of SiO2 and containing Al2O3, B2O3, Na2O, F, etc. is immersed in a molten salt comprising a mixture of 50 mol % of silver nitrate and 50 mol % of sodium nitrate. Na ions in the surface of the glass are eluted, diffusing Ag ions in the molten salt into the glass. When a laser beam is applied to the glass substrate thus formed, the glass substrate is evaporated or ablated progressively from its surface. The glass substrate is processed to a smooth finish without causing cracking or breakage. <IMAGE> <IMAGE> <IMAGE> <IMAGE></p> |
申请公布号 |
EP1110921(A3) |
申请公布日期 |
2001.08.29 |
申请号 |
EP20010103117 |
申请日期 |
1997.03.14 |
申请人 |
NIPPON SHEET GLASS CO., LTD. |
发明人 |
KOYAMA, TADASHI;TSUNETOMO, KEIJI |
分类号 |
B23K26/00;C03C3/04;C03C4/00;C03C4/06;C03C21/00;C03C23/00;(IPC1-7):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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