Patent ID: 8592959
Filing Date: 2013-11-26
Classification: H01L

Abstract:
1. A semiconductor device comprising: a semiconductor element; a wiring board including a first surface of a resin substrate and a second surface of the resin substrate opposite to the first surface, a cavity which is formed in the first surface of the resin substrate and in which the semiconductor element is mounted, and a wiring layer for a high frequency wave and another wiring layer in each of which first and second pads are defined at both ends and which are formed on the first surface thereof around the cavity, each of the wiring layer and the another wiring layer being electrically connected to the semiconductor element through the first pad; an outermost insulating layer Which is formed of a solder resist layer and is on each of the first surface and the second surface, the outermost insulating layer on the first surface being comprised of a first outermost insulating layer from which the wiring layer for the high frequency wave, the first and second pads of the wiring layer for the high frequency wave are exposed and with which the another wiring layer and the second pad of the another layer are covered other than the first pad of the another wiring layer, and a second outermost insulating layer provided at an outer peripheral position than a forming region of the first outermost insulating layer, the second outermost insulating layer comprising a dam-shaped member; and a concave cap provided to seal the first surface of the wiring board, the concave cap being mounted at an outer peripheral position than a forming region of the second outermost insulating layer on the first surface of the resin substrate, wherein a sidewall portion of the concave cap includes an inside surface facing toward each of the layer and the another wiring layer of the wiring board, an outside surface positioned on an opposite side to the inside surface, and a bottom surface adhered through an adhesive onto the first surface of the resin substrate, and the sidewall portion of the concave cap is provided so that a thickness thereof becomes thinner at a portion extending from the outside surface to the bottom surface, and wherein the dam-shaped member is provided between the first outermost insulating layer and the inside surface of the sidewall portion.