| 摘要 |
PURPOSE:To prevent excessive irradiation of ultraviolet rays, by a method wherein a shutter is provided between an ultraviolet ray source and a package market with an UV ink and opened and closed corresponding to the movement and the stopping of the package. CONSTITUTION:A discrimination mark is applied to the surface of a range package of a semiconductor apparatus with an ultraviolet ray curable ink (an UV ink) and the whole is passed through baking apparatus 1 to cure said ink. In the baking apparatus 1, the conveying line 3 of the package 2 and apparatuses 7-9 irradiating the conveying line 3 with ultraviolet rays are provided and an ultraviolet ray shielding shutter 12 is provided between the ultraviolet ray irradiating apparatuses 7-9 and the conveying line 3 of the package 2. In this case, when a trouble is generated to the conveying line 3 of the package 2 and the package 2 is irradiated with excessive ultraviolet rays, the shutter 2 is closed. |
