US 12,424,603 B2
Circuit device
Akira Haraguchi, Yokkaichi (JP)
Assigned to AutoNetworks Technologies, Ltd., Yokkaichi (JP); Sumitomo Wiring Systems, Ltd., Yokkaichi (JP); and Sumitomo Electric Industries, Ltd., Osaka (JP)
Appl. No. 18/551,305
Filed by AutoNetworks Technologies, Ltd., Yokkaichi (JP); Sumitomo Wiring Systems, Ltd., Yokkaichi (JP); and Sumitomo Electric Industries, Ltd., Osaka (JP)
PCT Filed Mar. 17, 2022, PCT No. PCT/JP2022/012470
§ 371(c)(1), (2) Date Sep. 19, 2023,
PCT Pub. No. WO2022/202638, PCT Pub. Date Sep. 29, 2022.
Claims priority of application No. 2021-047315 (JP), filed on Mar. 22, 2021.
Prior Publication US 2024/0170472 A1, May 23, 2024
Int. Cl. H01L 25/00 (2006.01); H01L 25/18 (2023.01); H05K 1/18 (2006.01); H05K 7/20 (2006.01)
CPC H01L 25/18 (2013.01) [H05K 1/18 (2013.01); H05K 7/20418 (2013.01); H05K 2201/10166 (2013.01); H05K 2201/10174 (2013.01); H05K 2201/10272 (2013.01); H05K 2201/10522 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A circuit device comprising:
a first electronic component;
a first busbar on which the first electronic component is mounted;
a second electronic component;
a second busbar on which the second electronic component is mounted;
a first heat dissipation member that is thermally connected to the first busbar;
a second heat dissipation member that is thermally connected to the second busbar; and
a circuit board that is electrically connected to the first electronic component and the second electronic component,
wherein the first busbar and the second busbar respectively have a first facing part and a second facing part that face each other,
the first facing part has a first surface on which the first electronic component is mounted and a second surface opposite to the first surface,
the second facing part has a third surface that faces the second surface of the first facing part and a fourth surface that is positioned opposite to the third surface and on which the second electronic component is mounted, and
when the second facing part is seen from the first facing part, the circuit board has a wiring board that is positioned behind the first facing part and is positioned in front of the second facing part.