Patent ID: 7923835
Filing Date: 2011-04-12
Classification: H01L,H05K

Abstract:
1. An electronic device comprising: a substrate having a plurality of wiring layers; an electronic element mounted above the substrate; an encapsulation member covered over the electronic element and a part of the substrate; a first functional surface wiring formed in an exposed layer of the wiring layers above the substrate, the first functional surface wiring connecting to the electronic element, the first functional surface wiring being arranged in the part of the substrate; a second functional surface wiring formed in the exposed layer of the wiring layers above the substrate, the second functional surface wiring being disposed in a plurality of first peripheral portions adjacent to a plurality of second peripheral portions of the substrate, one of the first peripheral portions being surrounded by a region arranging the encapsulation member and two of the second peripheral portions, the second peripheral portions being corner areas of the substrate; and an intermediate wiring formed in an intermediate layer of the wiring layers; wherein the substrate has a first through-hole disposed in the part of the substrate, the first through-hole being connected to the first functional surface wiring and the intermediate wiring; and wherein the substrate has a second through-hole disposed in the first peripheral portions of the substrate, the second through-hole being connected to the intermediate wiring and the second functional surface wiring, the intermediate wiring extending from the first through-hole to the second through-hole.