Integrated circuit package system with package stacking and method of manufacture thereof

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

forming a base package including:

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

coupling a first integrated circuit die to the component side,

mounting a shield to the first integrated circuit die includes mounting a heat spreader cap, and

coupling stacking interconnects to the component side to surround the first integrated circuit die;

forming a stacked integrated circuit package including:

fabricating a stacked package substrate having a chip side,

coupling a lower stacked integrated circuit die to the chip side, and

attaching on a coupling side, of the stacked package substrate, the stacking interconnects;

stacking the stacked integrated circuit package on the base package including the stacking interconnects of the stacked integrated circuit package on the stacking interconnects of the base package; and

forming a stacked solder column by reflowing the stacked interconnects.

2. The method as claimed in claim 1 further comprising maintaining a separation height between the base package and the stacked integrated circuit package by the height of the stacked solder column.

3. The method as claimed in claim 1 further comprising forming a package body on the base package substrate.

4. The method as claimed in claim 1 wherein coupling the stacking interconnects to the component side including molding a package body and forming vertical insertion cavities for holding the stacking interconnects.

5. A method of manufacture of an integrated circuit package system comprising:

forming a base package including:

fabricating a base package substrate having a component side and a system side including forming a component pad on the component side and a system pad on the system side,

coupling a first integrated circuit die to the component side including forming a chip interconnect between the first integrated circuit die and the component pad,

mounting a shield to the first integrated circuit die, and

coupling stacking interconnects to the component side to surround the first integrated circuit die;

forming a stacked integrated circuit package including:

fabricating a stacked package substrate having a chip side including forming a chip side contact,

coupling a lower stacked integrated circuit die to the chip side including coupling an upper stacked integrated circuit die to the chip side contact, and

attaching on a coupling side, of the stacked package substrate, the stacking interconnects;

stacking the stacked integrated circuit package on the base package in which the stacking interconnects of the stacked integrated circuit package on the stacking interconnects of the base package; and

forming a stacked solder column by reflowing the stacking interconnects.

6. The method as claimed in claim 5 further comprising maintaining a separation height between the base package and the stacked integrated circuit package by the height of the stacked solder column including filling a vertical insertion cavity.

7. The method as claimed in claim 5 further comprising forming a package body on the base package substrate including the shield coplanar with or above the package body.

8. The method as claimed in claim 5 wherein mounting the shield to the first integrated circuit die includes mounting a heat spreader cap or a discrete shield.

9. The method as claimed in claim 5 wherein coupling the stacking interconnects to the component side including molding a package body and forming vertical insertion cavities for holding the stacking interconnects.

10. An integrated circuit package system comprising:

a base package including:

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

a first integrated circuit die coupled to the component side,

a shield mounted to the first integrated circuit die includes a heat spreader cap, and

first stacking interconnects coupled to the component side to surround the first integrated circuit die;

a stacked integrated circuit package on the base package including:

a stacked package substrate having a chip side,

a lower stacked integrated circuit die coupled to the chip side, and

a coupling side, of the stacked package substrate, with second stacking interconnects mounted includes the second stacking interconnects on the first stacking interconnects of the base package; and

a stacked solder column formed by reflow of the first stacking interconnects and the second stacking interconnects.

11. The system as claimed in claim 10 further comprising a separation height between the base package and the stacked integrated circuit package set by the height of the stacked solder column.

12. The system as claimed in claim 10 further comprising a package body molded on the base package substrate.

13. The system as claimed in claim 10 wherein the stacking interconnects coupled to the component side includes a package body with vertical insertion cavities to hold the stacking interconnects.

14. The system as claimed in claim 10 further comprising:

the base package including:

a component pad on the component side and a system pad on the system side, and

a chip interconnect between the first integrated circuit die and the component pad;

the stacked integrated circuit package including:

a chip side contact on the chip side of the stacked package substrate, and

an upper stacked integrated circuit die coupled to the chip side contact.

15. The system as claimed in claim 14 further comprising a separation height between the base package and the stacked integrated circuit package maintained by the height of the stacked solder column includes a vertical insertion cavity filled.

16. The system as claimed in claim 14 further comprising a package body molded on the base package substrate includes the shield coplanar with or above the package body.

17. The system as claimed in claim 14 wherein the shield mounted to the first integrated circuit die includes a heat spreader cap or a discrete shield.

18. The system as claimed in claim 14 wherein the stacking interconnects coupled to the component side includes a package body with vertical insertion cavities that hold the stacking interconnects.