| 摘要 |
PROBLEM TO BE SOLVED: To prevent rotation of a surface mounted component and allow a worker to easily check joining between the surface mounted component and a printed wiring board where the surface mounted component is mounted in a reflow method, in the printed wiring board.SOLUTION: Each of pads 3a1 and 3a2, where terminals 102 and 103 of a surface mounted component are disposed, has wide regions Ra which are relatively wide and narrow regions Rb, each of which is relatively narrow and has width that is the same as or wider than widths of the terminals.SELECTED DRAWING: Figure 2 |
