Circuit board including an embedded component
View Patent ↗The document describes a circuit board and an electronic module, including a conductor-pattern layer, an insulating-material layer supporting the conductor-pattern layer, and at least one component inside the insulating-material layer. The component has a plurality of contact areas and the circuit board or electronic module includes contact elements between the conductor-pattern layer and contact areas for electrically connecting the conductor-pattern layer and the at least one component such that at least two of the contact elements are in direct contact with a common contact area.
1. A circuit board, comprising:
a conductor-pattern layer;
an insulating-material layer supporting the conductor-pattern layer;
at least one component inside the insulating-material layer, the component having a plurality of contact areas;
a set of contact elements between the conductor-pattern layer and contact areas for electrically connecting the conductor-pattern layer and the at least one component;
wherein the set of contact elements comprise a plurality of individual contact elements for at least one single contact area in said plurality of contact areas.
2. The circuit board of claim 1 , comprising hardened insulating adhesive between the conductor-pattern layer and contact areas of the component, the set of contact elements passing through the hardened insulating adhesive.
3. The circuit board of claim 2 , wherein the hardened insulating adhesive fills the space between the conductor-pattern layer and the component.
4. The circuit board of claim 1 , wherein
the component has a first surface on which said plurality of contact areas are located;
the first surface of the component faces the conductor-pattern layer; and
each contact element in said set of contact elements extends from the respective contact area to the conductor-pattern layer at right angles to said first surface of the component.
5. The circuit board of claim 1 , wherein
the component is a semiconductor component having a first surface and said plurality of contact areas located on said first surface;
said plurality of contact areas are separated from the conductor-pattern layer by a space; and
said space is filled by hardened insulating adhesive and said set of contact elements passing through the hardened insulating adhesive, said contact element extending from the respective contact area to the conductor-pattern layer at right angles to said first surface of the semiconductor component.
6. The circuit board of claim 1 , wherein
the set of contact elements comprises a first plurality of individual contact elements for a first individual contact area in said plurality of contact areas; and
the set of contact elements comprises a second plurality of individual contact elements for a second individual contact area in said plurality of contact areas.
7. The circuit board of claim 1 , wherein each contact element in the set of contact elements contains a first layer of metal and a second layer of metal.
8. The circuit board of claim 1 , wherein each contact element in the set of contact elements is in metallurgical contact with the respective contact area and a respective conductor of the conductor-pattern layer.
9. The circuit board of claim 8 , wherein each contact element in the set of contact elements is in said metallurgical contact via a contact surface, the contact surface being round in shape.
10. A circuit board, comprising:
a conductor-pattern layer;
an insulating-material layer supporting the conductor-pattern layer;
at least one component inside the insulating-material layer, the component having a plurality of contact areas;
contact elements between the conductor-pattern layer and contact areas for electrically connecting the conductor-pattern layer and the at least one component;
wherein at least two of the contact elements are in direct contact with a common contact area.
11. The circuit board of claim 10 , wherein said at least two contact elements are in metallurgical contact with said common contact area.
12. The circuit board of claim 11 , wherein each of said at least two contact elements comprise a first layer of metal and a second layer of metal.
13. The circuit board of claim 11 , wherein said at least two contact elements extend through a layer of hardened insulating adhesive.
14. The circuit board of claim 11 , wherein said at least two contact elements extend from the common contact area at right angles to said common contact area.
15. The circuit board of claim 10 , wherein
said at least one component comprises at least one semiconductor component; and
said at least two contact elements are in direct contact with the common contact area of the at least one semiconductor component through a round contact surface.
16. An electronic module, comprising:
an insulating-material layer;
at least one semiconductor component inside the insulating-material layer, the semiconductor component having a plurality of contact areas;
a conductor-pattern layer running over the insulating-material layer and comprising a plurality of conductors;
contact elements between the conductor-pattern layer and contact areas;
wherein at least one of the conductors is electrically connected to an individual contact area via a plurality of said contact elements.
17. The electronic module of claim 16 , wherein
the electronic module comprises at least one layer of hardened insulating adhesive between the conductor-pattern layer and the component; and
said plurality of contact elements pass through said at least one layer of hardened insulating adhesive, extending at right angles to said individual contact area.
18. The electronic module of claim 17 , wherein said at least one layer of hardened insulating adhesive is in direct contact with the conductor-pattern layer and the component.
19. The electronic module of claim 17 , wherein each contact element contains a first layer of metal and a second layer of metal.
20. The electronic module of claim 17 , wherein each contact element has a round cross-section.