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Title:
ELECTRICALLY INSULATING THERMAL CONNECTOR HAVING A LOW THERMAL RESISTIVITY
Document Type and Number:
WIPO Patent Application WO/2019/060402
Kind Code:
A4
Abstract:
A thermal connector comprising an electrically insulating beam having a first end face at a first end and a second end face at a second end is provided. The second end face may be opposite the first end face in an X direction. The beam may have a width in a Y direction perpendicular to the X direction. The beam may also have a top face and a bottom face offset from the top face in a Z direction. The thermal connector may include a first terminal attached to the bottom face and adjacent the first end and a second terminal attached to the top face and adjacent the first end. The connector may have an overall thickness in the Z direction, which includes the first and second terminals and is greater than 1.27 mm and less than 3.81 mm.

Inventors:
DURGIN SCOTT B (US)
Application Number:
PCT/US2018/051725
Publication Date:
May 16, 2019
Filing Date:
September 19, 2018
Export Citation:
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Assignee:
AVX CORP (US)
International Classes:
H05K7/20; H05K1/02
Attorney, Agent or Firm:
WAITE, Sterling R. et al. (US)
Download PDF:
Claims:
AMENDED CLAIMS

received by the International Bureau on 15 March 2019 (15.03.2019)

1 . A thermal connector comprising:

an electrically insulating beam having a first end face at a first end and a second end face at a second end, the second end face opposite the first end face in an X direction, the beam having a width in a Y direction perpendicular to the X direction, the beam having a top face and a bottom face which is offset from the top face in a Z direction, the Z direction being perpendicular to each of the X and Y directions;

a first terminal attached to the bottom face and adjacent the first end; and a second terminal attached to the top face and adjacent the first end;

wherein the connector has an overall thickness in the Z direction, including the first and second terminals, which is greater than 1 .27 mm and less than 3.81 mm.

2. The thermal connector of claim 1 , wherein the electrically insulating beam comprises a material having a thermal conductivity from about 150 W/m»°C to about 300 W/nv°C at about 22 °C.

3. The thermal connector of claim 1 , wherein the electrically insulating beam comprises aluminum nitride.

4. The thermal connector of claim 1 , wherein the electrically insulating beam comprises beryllium oxide.

5. The thermal connector of claim 1 , further comprising:

a third terminal attached to the bottom face and adjacent the second end; and

a fourth terminal attached to the top face and adjacent the second end.

6. The thermal connector of claim 1 , further including a first end face terminal attached to the first end face of the beam and connecting the first terminal with the second terminal.

7. The thermal connector of claim 5, further including a second end face terminal attached to the second end face of the beam and connecting the third terminal with the fourth terminal.

8. The thermal connector of claim 1 , wherein the first terminal spans the width of the beam across the first end face of the beam.

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9. The thermal connector of claim 1 , wherein an overall length of the thermal connector is between about 2.5 mm and about 12.7 mm.

10. The thermal connector of claim 1 , wherein an overall width of the thermal connector is between about 5.1 mm and about 10.2 mm.

1 1 . The thermal connector of claim 1 , wherein the thermal resistance of the thermal connector is between about 2 °C/W and about 10 °C/W at about 22 °C.

12. The thermal connector of claim 1 , wherein the overall thickness is between about 1 .4 mm and about 2.16 mm.

13. The thermal connector of claim 1 , wherein the overall thickness is between about 1 .45 mm and about 1 .6 mm.

14. The thermal connector of claim 1 , wherein the thermal connector has an overall length between 3.2 and 4.9 times the overall thickness of the thermal connector.

15. The thermal connector of claim 1 , wherein the thermal connector has an overall length between 5 and 6.2 times the overall thickness of the thermal connector.

16. The thermal connector of claim 1 , wherein the thermal connector has an overall length in the X direction, and each of the overall length and the overall width of the thermal connector is between about 8.9 mm and about 10.2 mm.

17. The thermal connector of claim 1 , wherein at least one of the first terminal or the second terminal comprises gold.

18. The thermal connector of claim 1 , wherein at least one of the first terminal or the second terminal comprises a magnetized material.

19. The thermal connector of claim 1 , wherein the thermal connector has a thermal aspect resistance parameter between about 2.2 °C/W and about 3.0 °C/W at about 22 °C, and wherein the thermal aspect resistance parameter is a ratio of an aspect ratio of the thermal connector divided by a thermal resistance of the thermal connector, and wherein the aspect ratio is an overall length of the thermal connector divided by an overall width of the thermal connector.

20. The thermal connector of claim 1 , further comprising a conductive trace formed on the beam and configured to provide electrical tuning

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21 . The thermal connector of claim 1 , wherein at least one hole is formed in the beam to provide electrical tuning.

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