Patent ID: 8049316

Claim:
A semiconductor package comprising: a package body including a base part having a first surface and a second surface on an opposite side of the first surface, and a semiconductor device housing part provided on the first surface and in which a semiconductor device having a heat generating part is housed, the base part further having a heat generating part corresponding position corresponding to the heat generating part of the semiconductor device and a position outside the heat generating part corresponding position; an electric terminal provided in the semiconductor device housing part, electrically connected to the semiconductor device, and exposed to an outer surface of the semiconductor device housing part; and a high heat transfer element having a thermal conductivity higher than that of the base part, arranged from the heat generating part corresponding position to the outside position in the base part, and transferring heat generated by the heat generating part of the semiconductor device from the heat generating part corresponding position to the outside position in the base part, the base part being configured by contacting a plurality of thin sheets mutually closely with each other and by bonding integrally with each other, the high heat transfer element including particles configured by a material having a thermal conductivity higher than that of the base part, and dispersed in the base part, and the particles of the high heat transfer element being dispersed between two mutually adjacent thin sheets among the plurality of thin sheets of the base part.