| 摘要 |
PURPOSE:To eliminate the damage of the element or wiring formation surface of a substrate for a liquid crystal display panel and to make a vaporized material hard to stick on the element or wiring formation surface by directing the element or wiring formation surface downward, and projecting a light beam from their opposite surface and cutting the element or wiring. CONSTITUTION:The surface for the liquid crystal panel is held with the element or wiring formation surface down, and the light beam is transmitted through the transparent insulating substrate 11 from the opposite surface of the element or wiring, i.e. reverse surface to trim the element or wiring. The laser beam 7 is therefore transmitted through the transparent insulating substrate 11 and a constituting body is vaporized at the focusing point, so that particles of the vaporized constituting material is scattered along loci 12. Consequently, the element or wiring formation surface is never damaged and the vaporized constituting material does not stick on the element or wiring surface.
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