| 摘要 |
To provide a wiring board excellent in connection reliability with a semiconductor chip. A first buildup layer 31 where resin insulating layers 21 and 22 and a conductor layer 24 are laminated is formed at a substrate main surface 11 side of an organic wiring board 10. The conductor layer 24 for an outermost layer in the first buildup layer 31 includes a plurality of connecting terminal portions 41 for flip-chip mounting a semiconductor chip. The plurality of connecting terminal portions 41 is exposed through an opening portion 43 of a solder resist layer 25. Each connecting terminal portion 41 includes a connection region 51 for a semiconductor chip and a wiring region 52 disposed to extend from the connection region 51 along the planar direction. The solder resist layer 25 includes, within the opening portion 43, a side-surface covering portion 55 that covers the side surface of the connecting terminal portion 41 and a projecting wall portion 56 that is integrally formed with the side-surface covering portion 55 and disposed to project so as to intersect with the connection region 51. |
