| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a printed wiring board having high connection reliability. <P>SOLUTION: A printed wiring board 100 includes a resin layer 106 and a fiber base material 108 positioned in the resin layer 106. An opening 116, having a region where an opening diameter becomes smaller from a first surface to a second surface and penetrating through the resin layer 106, is formed in the resin layer 106. The printed wiring board 100 has a conductor 124 burying the opening 116 and an inner circuit 104 electrically connecting with the conductor 124. The inner circuit 104 contacts with the second surface of the resin layer 106 and covers an opening surface of the opening 116 on the second surface side from the second surface side. The inner circuit (104) is formed as a separate body from the conductor 124. The fiber base material 108 has a protruding part 109 protruding from a side wall of the opening part 116, and the protruding part 109 is positioned in the conductor 124. <P>COPYRIGHT: (C)2013,JPO&INPIT |
