| 摘要 |
PROBLEM TO BE SOLVED: To provide a wiring board which has a cover door conductor, and a through hole conductor or a via hole conductor, wherein connection reliability between the cover door conductor and the through hole conductor or the via hole conductor is enhanced. SOLUTION: A wiring board 21 comprises at least an insulating base body 1 containing a resin, a through hole 3 penetrating the insulating base body 1, a through hole conductor 5 formed at the inner wall of the through hole 3, a wiring conductor 12 formed by extending from the through hole conductor 5 on the surface of the base body 1, a resin 7 filled and embedded in a space formed by the through hole conductor 5, and a cover door conductor 9 clogging the end of the embedding resin 7. The cover door conductor 9 is formed in a projected face shape with respect to the embedding resin 7 side. COPYRIGHT: (C)2005,JPO&NCIPI |
