| 摘要 |
PROBLEM TO BE SOLVED: To provide a wiring board which achieves excellent component mountability in a recessed part.SOLUTION: A wiring board (10) includes: wiring layers (16) which are laminated; an insulation layer (18-4) having a surface (17) and a surface (19) on which a wiring layer (16-4) and a wiring layer (16-5) of the wiring layers (16) are respectively provided; a cavity (24) which is recessed from a surface (17) side to a middle part of the insulation layer (18-4); and a connection part (22-4) which is electrically connected with the wiring layer (16-5) and is provided at the insulation layer (18-4) so as to be exposed on a bottom surface of the cavity (24). The connection part (22-4) has: an exposed surface (26) exposed on the bottom surface of the cavity (24); a connection surface (28) which contacts with the wiring layer (16-5); and a side surface (30) which contacts with the insulation layer (18-4). The side surface (30) inclines.SELECTED DRAWING: Figure 2 |
