| 摘要 |
Disclosed is an electronic control device wherein a first small heat-producing semiconductor element (10), a first large heat-producing semiconductor element (20), and a second large heat-producing semiconductor element (30) are provided coplanar on the surface of a uniform substrate (SB). Further, at least one part of a housing of the small heat-producing semiconductor element is disposed inside the mutual thermal radiation area (H) of the first large heat-producing semiconductor element and the second large heat-producing semiconductor element. |
