Patent ID: 8436249
Filing Date: 2013-05-07
Classification: H01L,H05K,Y10T

Abstract:
1. A wiring substrate in which an electronic part loading area is formed on a first principal surface, comprising: a heat sink arranged to dissipate outside heat generated in an electronic part to be mounted in the electronic part loading area; an encapsulation resin arranged to provide a base of the wiring substrate and cover the heat sink so that a first surface of the heat sink is exposed to the electronic part loading area of the first principal surface; an inner connection terminal formed in the electronic part loading area and having an end face which is exposed to the first principal surface and electrically connected to an electrode of the electronic part; and an outer connection terminal formed outside the electronic part loading area and electrically connected to the inner connection terminal via a wiring, the outer connection terminal having an end face which is exposed to the first principal surface and arranged to input a signal from an external device and output a signal to the external device, wherein the encapsulation resin is arranged to cover at least a part of the wiring, cover the inner connection terminal except the end face thereof, and cover the outer connection terminal except the end face thereof, and wherein the first surface of the heat sink, the end face of the inner connection terminal, and the end face of the outer connection terminal are flush with and exposed to the first principal surface.