Printed circuit board having embedded component
The disclosure pertains to a method for the bonding of a component embedded into a printed circuit board. The methods include provisions of a core exhibiting at least one insulating layer and at least one conductor layer applied to the insulating layer. Methods may also include embedding at least one component into a recess of the insulating layer, wherein the contacts of the component are essentially situated in the plane of an outer surface of the core exhibiting the at least one conductor layer. Methods may also include application of a photoimageable resist onto the one outer surface of the core on which the component is arranged, while filling the spaces between the contacts of the component. Methods may also include clearing of end faces of the contacts and of the areas of the conductor layer covered by the photoimageable resist by exposing and developing the photoimageable resist.
1. A printed circuit board comprising:
at least one insulating layer and at least one patterned conductive layer with at least one conductor path disposed atop the at least one insulating layer;
at least one recess formed in at least one of the at least one insulating layer;
at least one component including a plurality of contacts having spaces therebetween, the at least one component embedded in an adhesive layer disposed within the recess, wherein each of the plurality of contacts having an end face distal from the at least one component; and
a plurality of conductive connections interconnecting the plurality of contacts of the component and the at least one conductor path of the patterned conductive layer; wherein:
the adhesive layer fully encloses all surfaces of the component except a surface from which the plurality of contacts extend;
the spaces between each of the plurality of contacts of the component are filled with a resist; and
a part of an additional conductive layer is arranged on a part of the resist;
wherein
the additional conductive layer being different from the patterned conductive layer and different from the plurality of conductive connections.
2. The printed circuit board according to claim 1 , wherein the plurality of contacts are perpendicular to a plane defined by an outer surface of a core.
3. The printed circuit board according to claim 1 , wherein the conductive connections protrude from the resist.
4. The printed circuit board according to claim 1 , wherein the resist covers any surfaces of the adhesive layer disposed between an outer wall of the component and an inner wall of the recess.
5. The printed circuit board according to claim 1 , wherein the resist includes at least one of a photoimageable resist, an epoxy-based lacquer, a photoimageable resist, and polyimide.
6. The printed circuit board according to claim 1 , wherein a recess of a core extends through the conductive layer into the insulating layer.
7. The printed circuit board according to claim 1 , wherein the resists covers a part of the component and a part of the at least one conductive layer.
8. The printed circuit board according to claim 1 , wherein the plurality of contacts of the component are essentially situated in a plane of an outer surface of a core exhibiting the at least one conductive layer.
9. The printed circuit board according to claim 1 , wherein the adhesive layer includes at least one of a solvent-free adhesive, a low-solvent adhesive and a prepreg adhesive.
10. The printed circuit board according to claim 1 , wherein each of the plurality of contacts is an elongated contact.
11. The printed circuit board according to claim 1 , wherein the plurality of contacts and the at least one conductive layer lie in a single plane.
12. The printed circuit board according to claim 1 , wherein a part of the resist is connected to at least a part of the adhesive layer.
13. The printed circuit board according to claim 12 , wherein the resist covers end faces of the adhesive layer between an outer wall of the component and an inner wall of the recess.
14. The printed circuit board according to claim 1 , wherein portions of the additional conductive layer and portions of the at least one conductor path together form a patterned conductor path.
15. The printed circuit board according to claim 14 , wherein the portions of the additional conductive layer and the plurality of conductive connections lie in a single plane.
16. The printed circuit board according to claim 1 , wherein the plurality of conductive connections includes the part of the additional conductive layer connected to the part of the resist.
17. The printed circuit board according to claim 1 , wherein the conductive connections extend further onto the resist.
18. The printed circuit board according to claim 1 , wherein the additional conductive layer includes the plurality of conductive connections.
19. The printed circuit board according to claim 1 , wherein the additional conductive layer is coupled on the end faces of the plurality of contacts and to the at least one patterned conductive layer.