Single-layer component package
View Patent ↗A single-layer component package comprising: a single conductive-pattern layer having a first surface; an insulating-material layer on the first surface of the single conductive-pattern layer; in an installation cavity inside the insulating-material layer, a semiconductor component having flat contact zones; and solid contact pillars containing copper and solderlessly, metallurgically and electrically connecting the flat contact zones to the single conductive-pattern layer.
1. A single-layer component package, comprising:
a single conductive-pattern layer having a first surface;
an insulating-material layer disposed on the first surface of the single conductive-pattern layer;
at least one installation cavity disposed within the insulating-material layer,
at least one semiconductor component disposed within said installation cavity and provided with flat contact zones, said contact zones defining solid contact pillars which contain copper and are solderlessly, metallurgically and electrically connected to the single conductive-pattern layer, and
wherein the single conductive-pattern layer is the only conductive-pattern layer within the single-layer component package.
2. The component package of claim 1 , wherein the single conductive-pattern layer comprises:
a layer of first conductive material extending throughout the single conductive-pattern layer; and
a surface layer provided on the layer of first conductive material, wherein the surface layer is made of second conductive material different from the first conductive material and is present only in the area of the installation cavity.
3. The component package of claim 2 , wherein the first conductive material is copper.
4. The component package of claim 1 , wherein the semiconductor component is an unpackaged memory circuit or an unpackaged microprocessor chip.
5. The component package of claim 1 , comprising a plurality of semiconductor components disposed within the insulating-material layer, each of the semiconductor components having flat contact zones which are solderlessly, metallurgically and electrically connected to the single conductive-pattern layer via said contact pillars.
6. The component package of claim 1 , comprising a conductive film for protecting the single-layer component package against electromagnetic radiation.
7. The component package of claim 1 , wherein the solid contact pillars comprise a layer of at least one of zinc and nickel.
8. The component package of claim 1 , wherein the insulating-material layer comprises a glass-fiber reinforced epoxy sheet.
9. The component package of claim 1 , wherein the component package is flexible and the insulating-material layer comprises a flexible organic sheet.
10. The component package of claim 1 , wherein the solid contact pillars contain a structured layer of copper and at least a second metal other than copper.
11. The single-layer component package of claim 1 , wherein the contact zones are bonded through ultrasonic or thermo-compression bonding to the single conductive-pattern layer.
12. The single-layer component package of claim 1 , wherein the contact zones are bonded chemically or through electromagnetic radiation to the single conductive-pattern layer.
13. A single-layer component package, comprising:
a single conductive-pattern layer having a first surface and containing a first conductive material extending throughout the single conductive-pattern layer;
a semiconductor component having flat contact zones facing the single conductive pattern layer;
an insulating-material layer extending on the first surface of the single conductive-pattern layer and at least partly embedding the semiconductor component;
solid contact bumps solderlessly, metallurgically and electrically connecting the flat contact zones to the single conductive-pattern layer via local surfacing, the solid contact bumps containing copper, and
wherein the single conductive-pattern layer is the only conductive-pattern layer within the single-layer component package.
14. The component package of claim 13 , wherein the semiconductor component has a rear surface on the opposite side from the single conductive pattern layer, the rear surface being at least partly exposed and not covered by the insulating material layer.
15. The component package of claim 13 , wherein the component package is flexible.
16. The component package of claim 13 , wherein the solid contact bumps comprise a layer of at least one of zinc and nickel.
17. The component package of claim 13 , comprising a plurality of semiconductor components disposed within the insulating-material layer, each of the semiconductor components having flat contact zones which are solderlessly, metallurgically and electrically connected to the single conductive-pattern layer via said contact bumps.
18. The component package of claim 17 , wherein at least one of the semiconductor components is an unpackaged semiconductor chip.
19. The component package of claim 13 , wherein the insulating material layer.
comprises at least one glass-fiber reinforced epoxy sheet and a filler which secures the semiconductor component mechanically to said at least one glass-fiber reinforced epoxy sheet.
20. A single-layer component package, comprising:
a single conductive-pattern layer comprising a first conductive material extending throughout the single conductive-pattern layer;
a semiconductor chip having contact pads facing the single conductive-pattern layer;
an insulating-material layer supporting the single conductive-pattern layer and surrounding the semiconductor chip; and solid contact bumps solderlessly, metallurgically and electrically connecting the contact pads to the single conductive-pattern layer, at least part of each solid contact bump being made of copper, and
wherein the single conductive-pattern layer is the only conductive-pattern layer within the single-layer component package.
21. The component package of claim 20 , wherein the semiconductor chip is an unpackaged chip with an outer surface; and the insulating-material layer comprises at least one glass-fiber reinforced epoxy sheet and a filler securing the outer surface of the semiconductor chip mechanically to the at least one glass-fiber reinforced epoxy sheet.
22. The component package of claim 20 , wherein the single conductive-pattern layer further comprises a local surface defining a connection area on the first conductive material, the local surface comprising a second conductive material, wherein the first conductive material is copper and the second conductive material is a metal other than copper.