US 12,407,269 B2
Semiconductor device, busbar, and power converter
Junpei Kusukawa, Tokyo (JP); Masahito Mochizuki, Tokyo (JP); and Eiichi Ide, Tokyo (JP)
Assigned to Hitachi Astemo, Ltd., Hitachinaka (JP)
Appl. No. 17/924,569
Filed by Hitachi Astemo, Ltd., Hitachinaka (JP)
PCT Filed Jan. 22, 2021, PCT No. PCT/JP2021/002145
§ 371(c)(1), (2) Date Nov. 10, 2022,
PCT Pub. No. WO2021/229859, PCT Pub. Date Nov. 18, 2021.
Claims priority of application No. 2020-084711 (JP), filed on May 13, 2020.
Prior Publication US 2023/0231487 A1, Jul. 20, 2023
Int. Cl. H02M 7/00 (2006.01); H01L 23/00 (2006.01); H01L 23/049 (2006.01); H01L 25/07 (2006.01)
CPC H02M 7/003 (2013.01) [H01L 23/049 (2013.01); H01L 24/48 (2013.01); H01L 25/072 (2013.01); H01L 2224/48137 (2013.01); H01L 2924/13055 (2013.01); H01L 2924/30107 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A power converter comprising:
a semiconductor device; and
a busbar connected to the semiconductor device,
wherein the semiconductor device includes:
a sealing body in which a semiconductor element is resin-sealed;
a first terminal connected to the semiconductor element, the first terminal projecting from the sealing body along a given direction; and
a second terminal connected to the semiconductor element, the second terminal being adjacent to the first terminal with a space formed between the second terminal and the first terminal and projecting from the sealing body along the given direction in a direction of projection that is the same as a direction of projection of the first terminal,
wherein the first terminal has a first exposed part that extends in the given direction and that is exposed outside the sealing body,
wherein the second terminal has a sheathed part projecting from the sealing body, the sheathed part extending in the given direction and being sheathed with an insulating material, and a second exposed part projecting from the sheathed part, the second exposed part extending in the given direction and being exposed outside the sealing body,
wherein a distance along the given direction from a front end of the sheathed part to the sealing body is longer than a distance along the given direction from a front end of the first exposed part to the sealing body,
wherein a busbar includes:
a molded body in which a first conductor plate and a second conductor plate are resin-sealed;
a busbar first terminal connected to the first conductor plate, the busbar first terminal projecting from the molded body along a specific direction; and
a busbar second terminal connected to the second conductor plate, the busbar second terminal being adjacent to the busbar first terminal with a space formed between the busbar second terminal and the busbar first terminal and projecting from the molded body along the specific direction in a direction of projection that is the same as a direction of projection of the busbar first terminal,
wherein the busbar first terminal has a busbar first exposed part that extends in the specific direction and that is exposed outside the molded body,
wherein the busbar second terminal has a busbar sheathed part projecting from the molded body, the busbar sheathed part extending in the specific direction and being sheathed with a sheathing material with an insulation property, and a busbar second exposed part projecting from the busbar sheathed part, the busbar second exposed part extending in the specific direction and being exposed outside the molded body, and
wherein a distance along the specific direction from a front end of the busbar sheathed part to the molded body is longer than a distance along the specific direction from a front end of the busbar first exposed part to the molded body.