| 摘要 |
PROBLEM TO BE SOLVED: To reduce the occupancy area of a display section structure for mounting electronic components at high concentration by displaying a mark indicating the information about electronic components between land marks, indicating the mounting positions of the electronic components. SOLUTION: In a space formed between landmarks 13b and 13b, a mark indicating the information about the type of resistors is displayed. Therefore, the occupancy area of a display section structure 11 on a PWB 12 can be reduced and electronic components, including the resistors can be mounted on the PWB 12 at high concentration. Since a silk mark indicating the information about the type of the resistors is displayed between the landmarks 13a and 13b, even if the constituents of the display section structure 11 are drawn closer, the display section structure 11 can be recognized easily by the silk mark 14, since the resistors are mounted on the land marks 13a and 13b with the silk mark 14 put between. The reflection factor of the silk mark is higher than those of the electronic components. By comparing the reflection factors of the silk mark before and after mounting the resistors, installation defects can be easily checked.
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