| 摘要 |
PROBLEM TO BE SOLVED: To fine the structure of the connection of wiring boards. SOLUTION: A printed-wiring board 1 comprises: an insulating base 2, a plurality of wires 3 pattern-formed at least on one surface of the insulating base 2, and a resist layer 5 as a cover layer for covering the wires 3. The wires 3 become partially exposed connection terminals 3A-3E. The connection terminals 3A, 3C, 3E in the connection terminals 3A-3E are formed with a width length W1; and the connection terminals 3B, 3D have a width length W2 that is shorter than W1, and are formed at least on one surface of the insulating base. By forming the connection terminals 3A, 3C, 3E having the width length W1 and the connection terminals 3B, 3D having the width length W2 alternately on the surface of the insulating base, a connection terminal having a narrow wiring width is formed on one wiring board, and a connection terminal having a wide wiring width is formed on the other, thus fining the wiring interval and pitch much more than joining them mutually. COPYRIGHT: (C)2007,JPO&INPIT
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