Patent ID: 9622383
Date: 2017-04-11
CPC Classifications: H01L,H02M,H05K,Y10T

Claim:
1. A heat radiation structure for an electric device comprising: at least one multi-layer substrate including a plurality of base parts made of insulation material and a conductor pattern, which are stacked in a multi-layer structure so that the conductor pattern is electrically coupled with an interlayer connection portion in the base parts; the electric device having at least one of a first electric element built in the at least one multi-layer substrate and a second electric element, which is not built in the multi-layer substrate; and a low heat resistance element opposed to the electric device, wherein the low heat resistance element has a heat resistance lower than the insulation material, and wherein the heat radiation structure further comprises: a circuit board disposed on the at least one multi-layer substrate opposite to the low heat resistance element, wherein the at least one multi-layer substrate includes a plurality of multi-layer substrates, which are arranged on the circuit board along a direction different from a stacking direction of each of the plurality of multi-layer substrates, and wherein heat generated at the first electric element in the at least one multi-layer substrate is radiated via the low heat resistance element to an outside of the heat radiation structure, wherein the base parts includes an insulation base part, which is opposed to the low heat resistance element, wherein the base parts further includes an adjacent base part, which is adjacent to the insulation base part, wherein the adjacent base part has a surface, which is opposed to the low heat resistance element, and wherein the conductor pattern is disposed on the surface of the adjacent base part.