Integrated circuit package system with redistribution layer

1. A method for manufacturing an integrated circuit package system comprising:

forming a first external interconnect having both a first side and a second side that is an opposing side to the first side;

positioning a first integrated circuit having a first active side planar to the second side;

forming a first encapsulation around the first integrated circuit and the first external interconnect with the first side, the second side, and the first active side exposed;

forming a planar interconnect between the first active side and the second side;

forming a second encapsulation covering the planar interconnect and the first active side;

connecting a second integrated circuit over the first integrated circuit and the first side; and

forming a top encapsulation over the second integrated circuit.

2. The method as claimed in claim 1 wherein:

forming the first external interconnect includes:

forming a base and a tip with the base planar to the tip at the first side and the base non-planar to the tip at the second side; and

forming the planar interconnect between the first active side and the second side includes:

connecting the second side of the base and the first active side.

3. The method as claimed in claim 1 further comprising:

mounting a third integrated circuit over the second integrated circuit; and

wherein forming the top encapsulation includes:

forming the top encapsulation over the third integrated circuit.

4. The method as claimed in claim 1 wherein forming the first encapsulation includes covering a portion of the second side of the first external interconnect with the first encapsulation.

5. The method as claimed in claim 1 further comprising forming a second external interconnect under the first external interconnect.

6. A method for manufacturing an integrated circuit package system comprising:

forming a first external interconnect having both a base and a tip with the base planar to the tip at a first side of the first external interconnect and the base non-planar to the tip at a second side that is an opposing side to the first side;

positioning a first integrated circuit having a first active side planar to the second side;

forming a first encapsulation around the first integrated circuit and the first external interconnect with the first side, the second side of the base, and the first active side exposed;

forming a planar interconnect between the first active side and the second side of the base;

forming a second encapsulation covering the planar interconnect and the first active side;

connecting a second integrated circuit over the first integrated circuit and the first side; and

forming a top encapsulation over the second integrated circuit.

7. The method as claimed in claim 6 wherein connecting the second integrated circuit over the first integrated circuit and the first side includes mounting a second active side of the second integrated circuit facing the first encapsulation.

8. The method as claimed in claim 6 wherein forming the first encapsulation includes covering the second side of the tip.

9. The method as claimed in claim 6 further comprising mounting the second integrated circuit overhanging the first integrated circuit.

10. The method as claimed in claim 6 wherein forming the planar interconnect includes forming the planar interconnect on the first encapsulation.

11. An integrated circuit package system comprising:

a first external interconnect having both a first side and a second side that is an opposing side to the first side;

a first integrated circuit having a first active side planar to the second side;

a first encapsulation around the first integrated circuit and the first external interconnect with the first side, the second side, and the first active side exposed;

a planar interconnect between the first active side and the second side;

a second encapsulation covering the planar interconnect and the first active side;

a second integrated circuit over the first integrated circuit connected with the first side; and

a top encapsulation over the second integrated circuit.

12. The system as claimed in claim 11 wherein:

the first external interconnect includes a base and a tip with the base planar to the tip at the first side and the base non-planar to the tip at the second side; and

the planar interconnect between the first active side and the second side includes the second side of the base connected with the first active side.

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

a third integrated circuit over the second integrated circuit; and

wherein the top encapsulation is over the third integrated circuit.

14. The system as claimed in claim 11 wherein the first encapsulation is over a portion of the second side of the first external interconnect.

15. The system as claimed in claim 11 further comprising a second external interconnect attached under the first external interconnect.

16. The system as claimed in claim 11 wherein:

the first external interconnect includes a base and a tip with the base planar to the tip at the first side and the base non-planar to the tip at the second side;

the first encapsulation exposes the second side of the base; and

the planar interconnect is between the second side of the base and the first active side.

17. The system as claimed in claim 16 wherein the second integrated circuit includes a second active side facing the first encapsulation.

18. The system as claimed in claim 16 the first encapsulation covers the second side of the tip.

19. The system as claimed in claim 16 wherein the second integrated circuit overhangs the first integrated circuit.

20. The system as claimed in claim 16 wherein the planar interconnect is on the first encapsulation.