IP Library Granted Patent US 10,700,037
Granted Patent B2
US 10,700,037 · App. 15/811,375 · Granted Jun 30, 2020

Reinforcement for electrical connectors

Inventors: Eung San Cho (Torrance, CA); Thorsten Meyer (Regensburg, DE); Xaver Schloegel (Sachsenkam, DE); Thomas Behrens (Wenzenbach, DE); Josef Hoeglauer (Heimstetten, DE)
Assignee: Infineon Technologies AG
H01L24/48H01L23/49844H01L24/11H01L24/16H01L24/43H01L24/49H01L24/85H01L24/13H01L24/45H01L24/81H01L2224/11825H01L2224/13082H01L2224/16227H01L2224/16245H01L2224/32245H01L2224/43825H01L2224/45124H01L2224/45144H01L2224/45147H01L2224/45565H01L2224/4801H01L2224/48091H01L2224/48227H01L2224/48247H01L2224/48465H01L2224/48472H01L2224/48992H01L2224/49111H01L2224/49175H01L2224/73265H01L2224/8192H01L2224/8592H01L2924/01013H01L2924/01029H01L2924/01079
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 10,700,037
App. No.
15/811,375
Granted
Jun 30, 2020
Kind
B2
Abstract

In some examples, a device includes a semiconductor element, a layer element, and a single connector element electrically connecting the semiconductor element and the layer element. In some examples, the single connector element includes two or more discrete connector elements, and each discrete connector element of the two or more discrete connector elements electrically connects the semiconductor element and the layer element. In some examples, the single connector element also includes conductive material attached to the two or more discrete connector elements.

Claims (64)

1. A device comprising:

a semiconductor element;

a layer element; and

a single connector element electrically connecting the semiconductor element and the layer element, wherein the single connector element includes:

two or more discrete connector elements, wherein each discrete connector element of the two or more discrete connector elements electrically connects the semiconductor element and the layer element, wherein each discrete connector element of the two or more discrete connector elements includes a first end, a second end, and a body between the first end and the second end; and

conductive material attached to the two or more discrete connector elements, wherein the conductive material directly connects the body of a first discrete connector element of the two or more discrete connector elements and the body of a second discrete connector element of the two or more discrete connector elements, and

wherein the conductive material electrically connects the semiconductor element and the layer element.

2. The device of claim 1 , wherein the conductive material fills a gap between the two or more discrete connector elements.

3. The device of claim 1 , wherein the single connector element includes the conductive material between and around each discrete connector element of the two or more discrete connector elements.

4. The device of claim 1 ,

wherein the conductive material is a first layer of the conductive material attached to the two or more discrete connector elements,

wherein the single connector element further includes a second layer of the conductive material attached to the first layer of

the conductive material, and wherein the second layer of the conductive material includes nickel or silver.

5. The device of claim 1 , wherein the conductive material includes copper plating attached to the two or more discrete connector elements and formed by an electrolytic process.

6. The device of claim 1 , wherein the two or more discrete connector elements comprise gold, aluminum, or copper.

7. The device of claim 1 ,

further comprising additional conductive material attached to a surface of the layer element.

8. The device of claim 1 , wherein the semiconductor element includes gallium nitride.

9. The device of claim 1 , wherein the layer element includes a metal carrier, a laminate substrate, a ceramic, a direct-copper-bonded substrate, an active-metal-brazing substrate, a molded interconnect substrate, or a printed circuit board.

10. The device of claim 1 ,

wherein the conductive material is in physical contact with the first discrete connector element and with the second discrete connector element, and

wherein electricity can flow from the first discrete connector element to the second discrete connector element through only the conductive material.

11. A method comprising:

electrically connecting a first end of each discrete connector element of two or more discrete connector elements to a layer element;

electrically connecting a second end of each discrete connector element of the two or more discrete connector elements to a semiconductor element, wherein each discrete connector element of the two or more discrete connector elements includes a body between the first end and the second end; and

forming conductive material on the two or more discrete connector elements after electrically connecting the two or more discrete connector elements to the layer element and after electrically connecting the two or more discrete connector elements to the semiconductor element,

wherein the conductive material electrically connects the semiconductor element and the layer element, and

wherein forming the conductive material comprises:

forming a single connector element to electrically connect the semiconductor element and the layer element; and

forming a direct electrical connection between the body of a first discrete connector element of the two or more discrete connector elements and the body of a second discrete connector element of the two or more discrete connector elements such that the conductive material directly connects the body of a first discrete connector element of the two or more discrete connector elements and the body of a second discrete connector element of the two or more discrete connector elements.

12. The method of claim 11 , wherein forming the conductive material on the two or more discrete connector elements comprises forming, by an electrolytic process or by an electroless process, a layer of copper on the two or more discrete connector elements.

13. The method of claim 11 ,

further comprising forming additional conductive material on at least part of the layer element.

14. The method of claim 11 , further comprising masking at least part of the layer element before forming the conductive material on the two or more discrete connector elements.

15. The method of claim 11 ,

wherein forming the conductive material on the two or more discrete connector elements comprises forming a first layer of conductive material on the two or more discrete connector elements,

wherein the method further comprises forming a second layer of conductive material on the first layer of conductive material, and

wherein the second layer of conductive material includes nickel or silver.

16. The method of claim 11 , wherein forming the single connector element comprises filling a gap between the first discrete connector element of the two or more discrete connector elements and the second discrete connector element of the two or more discrete connector elements.

17. A device comprising:

a semiconductor element;

a layer element; and

a single connector element electrically connecting the semiconductor element and the layer element, wherein the single connector element includes:

two or more discrete connector elements, wherein each discrete connector element of the two or more discrete connector elements is electrically connected to a pad on the semiconductor element and electrically connected to the layer element, wherein each discrete connector element of the two or more discrete connector elements includes a first end, a second end, and a body between the first end and the second end; and

conductive material formed on each discrete connector element of the two or more discrete connector elements, the pad on the semiconductor element, and the layer element,

wherein the conductive material directly connects the body of a first discrete connector element of the two or more discrete connector elements and the body of a second discrete connector element of the two or more discrete connector elements,

wherein the conductive material is in physical contact with the first discrete connector element and with the second discrete connector element, and

wherein electricity can flow from the first discrete connector element to the second discrete connector element through only the conductive material.

18. The device of claim 17 ,

wherein the conductive material comprises a first layer of conductive material, and

wherein the device further comprises a second layer of conductive material formed on the first layer of conductive material.

19. A device comprising:

a semiconductor element;

a layer element; and

a single connector element electrically connecting the semiconductor element and the layer element, wherein the single connector element includes:

two or more discrete connector elements, wherein each discrete connector element of the two or more discrete connector elements electrically connects the semiconductor element and the layer element, wherein each discrete connector element of the two or more discrete connector elements includes a first end, a second end, and a body between the first end and the second end;

a first layer of conductive material attached to the two or more discrete connector elements, wherein the first layer of conductive material directly connects the body of a first discrete connector element of the two or more discrete connector elements and the body of a second discrete connector element of the two or more discrete connector elements; and

a second layer of conductive material attached to the first layer of conductive material, wherein the second layer of conductive material includes nickel or silver.

20. A device comprising:

a semiconductor element;

a layer element; and

a single connector element electrically connecting the semiconductor element and the layer element, wherein the single connector element includes:

two or more discrete connector elements, wherein each discrete connector element of the two or more discrete connector elements electrically connects the semiconductor element and the layer element, wherein each discrete connector element of the two or more discrete connector elements includes a first end, a second end, and a body between the first end and the second end; and

conductive material attached to the two or more discrete connector elements, wherein the conductive material directly connects the body of a first discrete connector element of the two or more discrete connector elements and the body of a second discrete connector element of the two or more discrete connector elements, and wherein the conductive material includes copper plating attached to the two or more discrete connector elements and formed by an electrolytic process.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 22, 2017
From: INFINEON TECHNOLOGIES AMERICAS CORP.
To: INFINEON TECHNOLOGIES AG
Reel/Frame 044467/0775 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 13, 2017
From: CHO, EUNG SAN
To: INFINEON TECHNOLOGIES AMERICAS CORP.
Reel/Frame 044112/0701 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 13, 2017
From: MEYER, THORSTEN; SCHLOEGEL, XAVER; BEHRENS, THOMAS; HOEGLAUER, JOSEF
To: INFINEON TECHNOLOGIES AG
Reel/Frame 044112/0805 →