GLASS FOR LASER PROCESSING AND METHOD FOR PRODUCING PERFORATED GLASS USING SAME
First Claim
1. A glass for laser processing, the glass comprising a metal oxide serving as a coloring component, the glass having a glass composition comprising, in mol %:
- 45.0%≦
SiO2≦
68.0%;
2.0%≦
B2O3≦
20.0%;
3.0%≦
Al2O3≦
20.0%;
0.1%≦
TiO2≦
5.0%; and
0%≦
ZnO≦
9.0%,wherein a relationship of 0≦
Li2O+Na2O+K2O<
2.0% is satisfied.
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Accused Products
Abstract
The present invention provides a glass composition that allows holes with a circular contour and a smooth inner wall to be formed by a collective micro-hole-forming process using a combination of modified portion formation by ultraviolet laser irradiation and etching, the glass composition being adapted for practical continuous production. The present invention relates to a glass for laser processing, the glass including a metal oxide serving as a coloring component, the glass having a glass composition including, in mol %: 45.0%≦SiO2≦68.0%; 2.0%≦B2O3≦20.0%; 3.0%≦Al2O3≦20.0%; 0.1%≦TiO2≦5.0%; and 0%≦ZnO≦9.0%, wherein a relationship of 0≦Li2O+Na2O+K2O<2.0% is satisfied.
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Citations
14 Claims
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1. A glass for laser processing, the glass comprising a metal oxide serving as a coloring component, the glass having a glass composition comprising, in mol %:
-
45.0%≦
SiO2≦
68.0%;2.0%≦
B2O3≦
20.0%;3.0%≦
Al2O3≦
20.0%;0.1%≦
TiO2≦
5.0%; and0%≦
ZnO≦
9.0%,wherein a relationship of 0≦
Li2O+Na2O+K2O<
2.0% is satisfied. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification