| 摘要 |
PURPOSE: A structure of part mounted solderland is provided to improve productivity and quality by preventing short and bridge by changing or eliminating the shape of the dummy land in advance. CONSTITUTION: The structure of part mounted solderland includes a land area unit(L21-L24) and a dummy land area unit(D21-D23). Here, the first to fourth land areas(L21-L24) are formed in an arrangement that the lands correspond with the number and position of the leads. The first to third dummy lands(D21-D23) come inbetween the land areas(L21-L24) every time the arrangement direction changes. The dummy lands(D21-D23) prevent the aggregation of the neighboring lands and turn the direction of aggregation of each land. The centers of neighboring dummy lands(D21-D23) are separated by a constant distance.
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