Solid-state stacked die contactors

Patent metadata

Field	Value
Publication number	US-10109542-B2
Application number	US-201414245620-A
Country	US
Kind code	B2
Filing date	Apr 4, 2014
Priority date	Apr 4, 2014
Publication date	Oct 23, 2018
Grant date	Oct 23, 2018

Abstract

A solid-state contactor includes a housing, a lead, a bus plate, and an end connector. The lead extends through the housing and into an interior of the housing. The bus plate is disposed within the housing interior and mounts a die which is electrically connected to the lead through the bus plate. The end connector extends between the bus plate and the lead, attaching to the bus plate at an angle for coupling a plurality of bus plates with die to the lead in a stacked arrangement.

First claim

What is claimed is:

1. A solid-state contactor, comprising: a housing; a lead extending through the housing and into an interior of the housing; a bus plate disposed in the housing interior and mounting a die, wherein the die is electrically connected to the lead through the bus plate; and an end connector extending between the bus plate and the lead, wherein the end connector attaches to the bus plate at an angle for coupling a plurality of bus plates with die to the lead in a stacked arrangement, wherein the bus plate is a first bus plate and further including a second bus plate, wherein the end connector attaches to the second bus plate at an angle, wherein the end connector includes a first layer and a second layer, the first layer being disposed over a surface of the first bus plate facing the second bus plate, the second layer being disposed over a surface of the second bus plate facing the first bus plate.

2. A contactor as recited in claim 1 , wherein the end connector attaches to the first bus plate and the second bus plate at about the same angle.

3. A contactor as recited in claim 1 , further including a direct write interconnect electrically connecting the die to the end connector.

4. A contactor as recited in claim 3 , wherein the interconnect is conformal with a portion of the die and the bus plate.

5. A contactor as recited in claim 4 , further including an insulator conformal with the portion of the bus plate arranged between the bus plate and the interconnect.

6. A contactor as recited in claim 1 , wherein the housing envelopes the end connector and bus plate, wherein the lead extends through the housing for passively dissipating heat from the housing interior to the environment external to the housing.

7. A contactor as recited in claim 6 , wherein the housing has a shape conforming to a shape of a mechanical contactor assembly.

8. A contactor as recited in claim 1 , wherein the bus plate is a split bus plate having first and second split bus plate portions, wherein the first and second split bus portions are separated by an electrically insulating gap.

9. A power distribution assembly, comprising:
a solid-state contactor as recited in claim 1 ,
wherein the end connector includes a first and a second layer,
wherein the first layer is disposed over a surface of the first bus plate facing the second bus plate,
wherein the second layer is disposed over a surface of the second bus plate facing the first bus plate, and
wherein the first and second layers are joined to the other and bus plates by at least one ultrasonic weld; and
a bus bar connected to the solid-state contactor lead.

10. A power distribution assembly, comprising:
a solid-state contactor as recited in claim 1 , wherein the end connector is a first end connector and further including a second end connector,
wherein the a direct write interconnect electrically connects the die to the to the second end connector; and
a bus bar connected to the solid-state contactor lead.

11. A power distribution assembly, comprising:
a bus bar configured for receiving a mechanical contactor lead; and a solid-state contactor, including: a housing; a lead connected to the bus bar and extending through the housing and into an interior of the housing; a bus plate disposed within an interior of the housing interior and mounting a die, wherein the die is electrically connected to the lead through the bus plate; and an end connector extending between the bus plate and the lead, wherein the end connector attaches to the bus plate at an angle for coupling a plurality of bus plates with die to the lead in a stacked arrangement, wherein the end connector includes a first and a second layer, the first layer being disposed over a surface of the first bus plate facing the second bus plate, the second layer being disposed over a surface of the second bus plate facing the first bus plate.

12. A power distribution assembly as recited in claim 11 , wherein the housing has a shape conforming to a shape of a mechanical contactor assembly.

13. A power distribution assembly as recited in claim 11 , wherein the end connector is a first end connector and further including a second end connector, wherein the a direct write interconnect electrically connects the die to the to the second end connector.

14. A contactor as recited in claim 13 , wherein the interconnect is conformal with a portion of the die and the bus plate.

15. A solid-state contactor, comprising:
a housing;
first and second leads extending through the housing and into the housing interior;
a split bus plate disposed within the housing interior and having a first split bus plate portion separated from a second split bus plate portion by an electrically insulting gap;
a first end connector extending between the first lead and the first split bus plate portion, the first end connector attaching to the first split bus plate portion at an angle for coupling a plurality of bus plates with die to the lead in a stacked arrangement;
a second end connector extending between the second lead and the second split bus plate portion, the first end connector attaching to the second split bus plate portion at an angle for coupling a plurality of bus plates with die to the lead in a stacked arrangement;
a die mounted to the first split bus bar portion and electrically connected therethrough to first lead; and
an interconnect extending across the electrically insulting gap and electrically connecting the die to the second lead through the second split bus bar portion.

16. A solid-state contractor comprising: a housing;
a lead extending through the housing and into an interior of the housing; a bus plate disposed in the housing interior and mounting a die, wherein the die is electrically connected to the lead through the bus plate; an end connector extending between the bus plate and the lead, wherein the end connector attaches to the bus plate at an angle for coupling a plurality of bus plates with die to the lead in a stacked arrangement wherein the bus plate includes a continuous electrically conductive bus bar supporting the die, attached to the end connector and electrically connecting the die in series with the end connector without an intervening interconnect, wherein the end connector includes a first layer and a second layer, the first layer being disposed over a surface of the first bus plate facing the second bus plate, the second layer being disposed over a surface of the second bus plate facing the first bus plate.

Assignees

• Hamilton Sundstrand Corp
• Hs Elektronik Systeme Gmbh

Inventors

• Debabrata Pal
• Horowy John
• Karlen Eric
• Seidel Rainer J

Classifications

• H10W90/00

  Package configurations · CPC title

• H10W76/136

  having other interconnections perpendicular to the conductive base · CPC title

• H10W70/20

  Conductive package substrates serving as an interconnection, e.g. metal plates (leadframes H10W70/40) · CPC title

• H01L25/074

  Electricity · mapped topic

• H01L23/492

  Electricity · mapped topic