| 摘要 |
PROBLEM TO BE SOLVED: To provide a printed wiring board capable of narrowing pitch of an electric connection pad without impairing the stability of connection between an other electronic equipment and the printed wiring board.SOLUTION: A printed wiring board 1 comprises: a base substrate 3; and a plurality of electric connection pads 15a, 17a of a connection edge 13 connected to other electronic parts, arranged on one surface side of the base substrate 3, and a plurality of pads 15a, 17a are arranged in two front and rear rows when viewed from the connection direction between the other electronic parts and pads. The printed wiring board 1 has a wiring 9 connected to the pad 15a of the front row 15 and provided on the other surface side of the base substrate 3, and the wiring 9 is formed so as to pass through each positions on the other surface side of the base substrate 3, corresponding to the pad 15a of the front row and the pad 17a of the rear row. |
