Patent ID: 9460979
Filing Date: 2016-10-04
CPC Classification: H01L

Claim Text:
1. An electronic device comprising: a semiconductor module having a body portion with a rectangular parallelepiped shape and a plurality of terminal portions projecting from two of four side surfaces of the body portion, the two of the four side surfaces of the body portion being referred to as terminal projecting surfaces, the other two of the four side surfaces of the body portion being referred to as terminal non-projecting surfaces; a wiring substrate having a plurality of wiring patterns and a heat conducting pattern, surfaces of the plurality of wiring patterns other than a plurality of connecting portions to which the terminal portions of the semiconductor module are electrically connected and a surface of the heat conducting pattern being covered with solder resist, and the heat conducting pattern being disposed adjacent to at least one of the terminal non-projecting surfaces of the body portion on a surface of the wiring substrate; a case member opposed to the wiring substrate and spaced from the wiring substrate; and a heat conducting member thermally connecting predetermined portions of the wiring patterns and the heat conducting pattern to a predetermined heat conduction region of the case member, the predetermined heat conduction region being a surface of the case member opposing to the wiring substrate and being located further from the wiring substrate than a surface of the body portion opposition to the case member, wherein the heat conducting member thermally connects the body portion and the terminal portions to the predetermined heat conduction region of the case member.