Electrical component and method for producing an electrical component

Patent metadata

Field	Value
Publication number	US-9805846-B2
Application number	US-201214365968-A
Country	US
Kind code	B2
Filing date	Oct 2, 2012
Priority date	Dec 16, 2011
Publication date	Oct 31, 2017
Grant date	Oct 31, 2017

Abstract

An electrical component includes a main body, a metallic contact structure, which is in direct contact with the main body, and an electrically insulating passivation layer provided with an opening. The metallic contact structure is connected to an external contact-making element through the opening. Furthermore, the external contact-making element is covered and enclosed by a flexible metal composite layer. A method for producing an electrical component is also specified.

First claim

The invention claimed is:

1. An electrical component comprising:
a main body;
a metallic contact structure in direct contact with the main body;
an electrically insulating passivation layer comprising an opening;
an external contact-making element, wherein the metallic contact structure is connected to the external contact-making element through the opening; and
a flexible metal composite layer, wherein the external contact-making element is covered and enclosed by the flexible metal composite layer,
wherein the external contact-making element is partially located in the opening,
wherein the passivation layer has an inner surface facing the main body and an outer surface facing away from the main body, and
wherein the external contact-making element extends from the outer surface at least partially in the opening of the passivation layer.

2. The electrical component according to claim 1 , wherein the external contact-making element is at least partly arranged on the passivation layer.

3. The electrical component according to claim 1 , wherein the flexible metal composite layer is in direct contact with partial regions of the passivation layer.

4. The electrical component according claim 1 , wherein the metallic contact structure projects into the main body.

5. The electrical component according to claim 4 , wherein the metallic contact structure has at least one internal electrode or is embodied as a metallic via.

6. The electrical component according to claim 1 , wherein the metallic contact structure is arranged on a surface of the main body, and wherein the external contact-making element makes electrical contact with the main body through the metallic contact structure.

7. The electrical component according to claim 1 , wherein the main body comprises a ceramic material and/or a semiconductor material.

8. The electrical component according to claim 1 , wherein the passivation layer comprises glass and/or a ceramic material.

9. The electrical component according to claim 1 , wherein the flexible metal composite layer comprises a plastic material.

10. The electrical component according to claim 1 , wherein the flexible metal composite layer comprises a polymer.

11. The electrical component according to claim 1 , further comprising a first protective layer arranged on that side of the flexible metal composite layer that faces away from the main body.

12. The electrical component according to claim 11 , further comprising a second protective layer arranged on the first protective layer.

13. The electrical component according to claim 12 , wherein the first protective layer comprises nickel and the second protective layer comprises tin.

14. A method for producing an electrical component, the method comprising:
forming a metallic contact structure in direct contact with a main body;
forming an electrically insulating passivation layer comprising an opening;
forming an external contact-making element, wherein the metallic contact structure is connected to the external contact-making element through the opening; and
forming a flexible metal composite layer, wherein the external contact-making element is covered and enclosed by the flexible metal composite layer,
wherein the external contact-making element is partially located in the opening,
wherein the passivation layer has an inner surface facing the main body and an outer surface facing away from the main body, and
wherein the external contact-making element extends from the outer surface at least partially in the opening of the passivation layer.

15. A method for producing an electrical component, the method comprising:
providing a main body, which is provided with a metallic contact structure and an electrically insulating passivation layer;
applying an external contact-making element to the main body using a screen printing, a sputtering or a dip process, such that the external contact-making element is in electrical contact with the metallic contact structure through an opening in the passivation layer; and
applying a flexible metal composite layer using a screen printing or a dip process, such that the external contact-making element is covered and enclosed by the flexible metal composite layer,
wherein the external contact-making element is partially located in the opening,
wherein the passivation layer has an inner surface facing the main body and an outer surface facing away from the main body, and
wherein the external contact-making element extends from the outer surface at least partially in the opening of the passivation layer.

16. The method according to claim 15 , further comprising carrying out a thermal treatment after applying the external contact-making element.

17. The method according to claim 15 , further comprising carrying out a thermal treatment after applying the flexible metal composite layer.

Assignees

• Epcos Ag

Inventors

• Feichtinger Thomas
• Lauenstein Jörg

Classifications

• H10D8/00

  Diodes (variable-capacitance diodes H10D1/64; gated diodes H10D12/00) · CPC title

• H01C1/142

  the terminals or tapping points being coated on the resistive element · CPC title

• H01F27/06

  Mounting, supporting or suspending transformers, reactors or choke coils {not being of the signal type} · CPC title

• H01F2027/065

  Mounting on printed circuit boards · CPC title

• H01G4/012

  Form of non-self-supporting electrodes · CPC title