Patent ID: 8994134
Filing Date: 2015-03-31
Classification: H01L

Abstract:
1. An electronic device, comprising: a first wiring substrate including a component mounting area; a second wiring substrate stacked on the first wiring substrate, in which an opening portion penetrating from an upper face of the second wiring substrate to a lower face is provided in a part corresponding to the component mounting area; a plurality of solder bumps which are arranged to have an interval on a periphery of the component mounting area so as to surround the component mounting area, and connect the first wiring substrate and the second wiring substrate; a frame-like resin dam layer formed between the solder bumps on the periphery of the component mounting area, and surrounding the component mounting area; and an electronic component mounted on the component mounting area of the first wiring substrate; and a sealing resin filled in an area between the first wiring substrate and the second wiring substrate, the area located to an outside of the frame-like resin dam layer, wherein the component mounting area located to an inside of the frame-like resin dam layer is formed as a resin non-forming area in which no sealing resin exists.