Patent ID: 8952505
Filing Date: 2015-02-10
Classification: H01L

Abstract:
1. A semiconductor device comprising: a circuit substrate including an insulating layer, a plurality of interconnections provided on the insulating layer, and a copper layer or a tungsten layer, and a cut surface of any of the copper layer and the tungsten layer being exposed at the side surface of the circuit substrate; a semiconductor element mounted on the circuit substrate; a sealing resin layer sealing the semiconductor element; a conductive shielding layer covering the sealing resin layer; and an external connection terminal connected to each of the interconnections; the cut surface and the conductive shielding layer being electrically connected, any of the interconnections and the external connection terminal connected to any of the interconnections being capable of becoming a ground potential, the interconnection capable of becoming the ground potential being electrically connected to the cut surface, and a distance between the adjacent external connection terminals capable of becoming the ground potential being not more than a half of a wavelength of an electromagnetic wave to be shielded.