Integrated circuit packaging system with reinforced encapsulant having embedded interconnect and method of manufacture thereof

1. A method of manufacture of an integrated circuit packaging system comprising:

fabricating a base package substrate having a component side and a system side;

coupling stacking interconnects on the component side; and

molding a reinforced encapsulant on the component side for forming an integrated circuit receptacle from the reinforced encapsulant and the component side, inserting an integrated circuit device into the integrated circuit receptacle, and exposing a portion of the stacking interconnects.

2. The method as claimed in claim 1 wherein molding the reinforced encapsulant includes forming an encapsulant thickness to be in the range from 30% to 90% of the total height of the stacking interconnects.

3. The method as claimed in claim 1 wherein inserting the integrated circuit device includes mounting an integrated circuit die in the integrated circuit receptacle.

4. The method as claimed in claim 1 further comprising forming a substantially coplanar surface between the stacking interconnects and the reinforced encapsulant.

5. The method as claimed in claim 1 further comprising forming an alignment receptacle on the stacking interconnect exposed from the reinforced encapsulant.

6. A method of manufacture of an integrated circuit packaging system comprising:

fabricating a base package substrate having a component side and a system side including forming component pads on the component side, system pads on the system side, and internal circuitry for coupling the component pads to the system pads;

coupling stacking interconnects on the component side including mounting metal balls, metal columns, stud bumps, or metal bumps on the component pads; and

molding a reinforced encapsulant on the component side for forming an integrated circuit receptacle from the reinforced encapsulant and the component side, inserting an integrated circuit device into the integrated circuit receptacle, and exposing a portion of the stacking interconnects including exposing the component pads in the integrated circuit receptacle.

7. The method as claimed in claim 6 wherein molding the reinforced encapsulant includes forming an encapsulant thickness to be in the range from 30% to 90% of the total height of the stacking interconnects for preventing a warping of the base package substrate.

8. The method as claimed in claim 6 wherein inserting the integrated circuit device includes mounting an integrated circuit die in the integrated circuit receptacle by coupling a chip interconnect between the integrated circuit die and the component pads.

9. The method as claimed in claim 6 further comprising forming a substantially coplanar surface between the stacking interconnects and the reinforced encapsulant including coining, hammering, compressing, or shaving the stacking interconnects.

10. The method as claimed in claim 6 further comprising forming an alignment receptacle on the stacking interconnect exposed from the reinforced encapsulant wherein forming the alignment receptacle includes exposing the stacking interconnects by laser ablation, chemical etching, or mechanical drilling of the reinforced encapsulant.

11. An integrated circuit packaging system comprising:

a base package substrate having a component side and a system side;

stacking interconnects on the component side; and

a reinforced encapsulant molded on the component side having an integrated circuit receptacle formed from the reinforced encapsulant and the component side, for inserting an integrated circuit device into the integrated circuit receptacle, and with a portion of the stacking interconnects exposed.

12. The system as claimed in claim 11 wherein the reinforced encapsulant molded on the component side includes an encapsulant thickness in the range from 30% to 90% of the total height of the stacking interconnects.

13. The system as claimed in claim 11 further comprising an integrated circuit die mounted in the integrated circuit receptacle.

14. The system as claimed in claim 11 further comprising a substantially coplanar surface formed by the stacking interconnects and the reinforced encapsulant.

15. The system as claimed in claim 11 further comprising an alignment receptacle formed on the stacking interconnect exposed from the reinforced encapsulant.

16. The system as claimed in claim 11 further comprising:

component pads on the component side, system pads on the system side, and internal circuitry coupled between the component pads and the system pads;

metal balls, metal columns, stud bumps, or metal bumps on the component pads form the stacking interconnects; and

the component pads exposed in the integrated circuit receptacle.

17. The system as claimed in claim 16 wherein the reinforced encapsulant molded on the component side includes an encapsulant thickness to be in the range from 30% to 90% of the total height of the stacking interconnects for preventing a warping of the base package substrate.

18. The system as claimed in claim 16 further comprising an integrated circuit die mounted in the integrated circuit receptacle by a chip interconnect coupled between the integrated circuit die and the component pads.

19. The system as claimed in claim 16 further comprising a substantially coplanar surface formed by the stacking interconnects and the reinforced encapsulant includes the stacking interconnects coined, hammered, compressed, or shaved.

20. The system as claimed in claim 16 further comprising an alignment receptacle formed on the stacking interconnect exposed from the reinforced encapsulant includes the reinforced encapsulant laser ablated, chemically etched, or mechanically drilled with the stacking interconnect exposed.