Patent ID: 9055682
Filing Date: 2015-06-09
Classification: H01L,H05K

Abstract:
1. A circuit module, comprising: a circuit substrate being a wiring substrate having a mount surface, a surface wiring layer disposed on the mount surface, and an inner wiring layer formed within the substrate, the surface wiring layer including a ground conductor disposed on the mount surface and connected to a ground potential, and lands; a first mount component mounted on the mount surface via the lands; a second mount component mounted on the mount surface via the lands, and electrically connected to the first mount component via the inner wiring layer; a sealing body formed on the mount surface, covering the first mount component and the second mount component and having a trench formed to extend downward in a depth direction from an upper end thereof at a main surface of the sealing body to a bottom end thereof at a surface of the ground conductor and being disposed between the first mount component and the second mount component, the trench being in contact with the ground conductor at the bottom end of the trench; and a shield having an inner shield section formed within the trench that abuts on the surface wiring layer and an outer shield section covering the sealing body and the inner shield section, wherein the inner wiring layer includes a plurality of inner wiring layers, and the first mount component and the second mount component are mutually electrically connected by an upper one of the inner wiring layers adjacent to the surface wiring layer and crossing beneath the bottom end of the trench and the ground conductor facing the bottom end of the trench when viewed in the depth direction of the trench.