| 摘要 |
PROBLEM TO BE SOLVED: To manufacture optical components by dividing a glass substrate by scribing it without utilizing the conventional complicated manufacturing process including the bending step of the glass substrate. SOLUTION: A first marking-off line 52 is formed deeply along y direction on one surface of a glass substrate 50, and at the same time, an auxiliary marking-off line 64 is formed shallowly along x direction. After sticking an adhesive tape 54 on the surface, the glass substrate 50 is reversed, and a second marking-off line 56 is formed deeply on the other surface of the glass substrate 50 while being aligned to the auxiliary marking-off line 64. The cracks of the first marking-off line 52 grow in the thickness direction by the formation of the second marking-off line 56, and the cracks of the second marking-off line 56 get together with the cracks of the auxiliary marking-off line 64. Thereby, it becomes possible to divide the glass substrate in the x direction and in the y direction without bending the glass substrate 50. COPYRIGHT: (C)2007,JPO&INPIT
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