Electrical terminal
View Patent ↗An electrical terminal for a semiconductor module, which comprises at least one first electrical contact, a second electrical contact and a connection element, which electrically connects the at least one first contact with the second contact, is provided. The connection element comprises a springy portion with at least one bended area and a linear portion arranged between the second electrical contact and the springy portion. The at least one bended area comprises at least one diminution.
1. A semiconductor module comprising:
a base plate with a first main side, a housing, which surrounds the base plate and which projects from the base plate on the first main side, a semiconductor chip being arranged within the housing on the first main side of the base plate and an electrical terminal, the electrical terminal comprising:
at least one first electrical contact, a second electrical contact and a connection element, which electrically connects the at least one first contact with the second contact, the connection element comprising a springy portion with at least one bended area or at least one bending and a linear portion arranged between the second electrical contact and the springy portion, wherein the at least one bended area or the at least one bending comprises at least one diminution; and
wherein the at least one first electrical contact contacts the base plate and the second electrical contact is arranged outside of the housing.
2. The semiconductor module according to claim 1 , wherein the springy portion of the electrical terminal comprises at least one bended area and at least one bending.
3. The semiconductor module according to claim 1 , wherein the springy portion of the electrical terminal comprises at least one bended area with a u-shaped, zigzag or rounded profile.
4. The semiconductor module according to claim 1 , wherein the connection element of the electrical terminal comprises a first electrically conductive plate.
5. The semiconductor module according to claim 4 , wherein the at least one diminution of the electrical terminal is formed as an area of reduced thickness compared to the thickness of the first electrically conductive plate.
6. A semiconductor module according to claim 5 , wherein the at least one diminution of the electrical terminal has a thickness of at most 50%, in particular 30%, in particular 20% of the thickness of the first electrically conductive plate.
7. The semiconductor module according to claim 4 , wherein the at least one diminution of the electrical terminal is formed as a through-hole.
8. The semiconductor module according to claim 5 , wherein the at least one diminution of the electrical terminal with reduced thickness has an at least partially rounded or obtuse angled profile.
9. The semiconductor module according to claim 1 , wherein the at least one diminution of the electrical terminal is formed as an area of reduced width compared to the mean width of the whole connection element.
10. The semiconductor module according to claim 9 , wherein the at least one diminution of the electrical terminal has a width of at most 50%, in particular 30%, in particular 20% of the mean width of the whole connection element.
11. The semiconductor module according to claim 4 , wherein the connection element of the electrical terminal is made as one piece.
12. The semiconductor module according to claim 1 , wherein the connection element of the electrical terminal comprises:
at least one first electrically conductive plate with a first thickness and a second electrically conductive plate with a second thickness, the second thickness being lower than the first thickness, and in that the second plate comprises the springy portion.
13. The semiconductor module according to claim 12 , wherein the at least one first plate and the second plate are firmly bonded to each other by welding, soldering or gluing.
14. A semiconductor module according to claim 1 , wherein the electrical terminal comprises:
at least two first electrical contacts, which are electrically connectable in parallel via the connection element, and in that between two neighboured first electrical contacts a springy portion with at least one diminution is arranged.
15. The semiconductor module according to claim 1 , wherein at least one bended area or bending is arranged between the second electrical contact and the linear portion, and in that the at least one bended area or bending comprises a diminution.
16. The semiconductor module according to claim 1 , wherein the at least one first electrical contact is firmly bonded to the base plate, in particular by welding or soldering.
17. The semiconductor module according to claim 16 , wherein the first main side of the base plate and the semiconductor chip are covered by an insulating elastic layer, in particular a silicon gel layer, and in that the at least one bended area or the at least one bending of the connection element is arranged within the elastic layer.
18. The semiconductor module according to claim 1 , wherein the first main side of the base plate and the semiconductor chip are covered by an insulating elastic layer, in particular a silicon gel layer, and in that the at least one bended area or the at least one bending of the connection element is arranged within the elastic layer.
19. The semiconductor module according to claim 18 , wherein the insulating elastic layer is covered by an insulating, hardened thermosetting plastic layer, in particular an epoxy resin layer, and in that the second electrical contact projects from the thermosetting plastic layer.
20. The semiconductor module according to claim 2 , wherein the springy portion of the electrical terminal comprises at least one bended area with a u-shaped, zigzag or rounded profile.
21. The semiconductor module according to claim 3 , wherein the connection element of the electrical terminal comprises a first electrically conductive plate.
22. The semiconductor module according to claim 6 , wherein the at least one diminution of the electrical terminal is formed as a through-hole.
23. The semiconductor module according to claim 7 , wherein the at least one diminution of the electrical terminal with reduced thickness has an at least partially rounded or obtuse angled profile.
24. The semiconductor module according to claim 8 , wherein the at least one diminution of the electrical terminal is formed as an area of reduced width compared to the mean width of the whole connection element.
25. The semiconductor module according to claim 10 wherein the connection element of the electrical terminal is made as one piece.
26. The semiconductor module according to claim 10 , wherein the connection element of the electrical terminal comprises at least one first electrically conductive plate with a first thickness and a second electrically conductive plate with a second thickness, the second thickness being lower than the first thickness, and in that the second plate comprises the springy portion.
27. The semiconductor module according to claim 10 , wherein the electrical terminal comprises at least two first electrical contacts, which are electrically connectable in parallel via the connection element, and in that between two neighboured first electrical contacts a springy portion with at least one diminution is arranged.
28. The semiconductor module according to claim 14 wherein at least one bended area or bending of the electrical terminal is arranged between the second electrical contact and the linear portion, and in that the at least one bended area or bending comprises a diminution.
29. A semiconductor module comprising a base plate with a first main side, a housing, which surrounds the base plate and which projects from the base plate on the first main side, a semiconductor chip being arranged within the housing on the first main side of the base plate and an electrical terminal, the electrical terminal comprising:
at least one first electrical contact, a second electrical contact and a connection element, which electrically connects the at least one first contact with the second contact, the connection element comprising a springy portion with at least one bended area or at least one bending and a linear portion arranged between the second electrical contact and the springy portion, wherein the at least one bended area or the at least one bending comprises at least one diminution:
wherein at least one bended area or bending is arranged between the second electrical contact and the linear portion, and in that the at least one bended area or bending comprises a diminution; and
wherein the at least one first electrical contact contacts the base plate and the second electrical contact is arranged outside of the housing.