| abstract |
It is to provide a highly reliable wiring board that ensures connection reliability in vias. A wiring board in which insulating layers and wiring layers are alternately stacked and the wiring layers are electrically connected by vias, the first terminal being provided on the first surface and embedded in the insulating layer, and the first surface A second terminal embedded on the insulating layer and embedded in the insulating layer, and a land provided in the insulating layer and in contact with the first terminal. The land is provided via the insulating layer. The via that electrically connects to the wiring layer to be connected does not have a connection interface at the end on the land side, and has a connection interface at the end on the wiring layer side (FIG. 1). |