Integrated circuit package-in-package system with carrier interposer

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

mounting an integrated circuit device over a package carrier;

forming a subassembly including:

providing an integrated circuit package system having a carrier interposer with an integrated circuit die thereover, and

mounting a device under the carrier interposer,

forming an inner encapsulation over the integrated circuit die and the carrier interposer;

mounting the subassembly over the integrated circuit device; and

encapsulating the subassembly and the integrated circuit device over the package carrier, with the inner encapsulation exposed.

2. The method as claimed in claim 1 further comprising mounting a further device over the carrier interposer.

3. The method as claimed in claim 1 further comprising mounting a further device under the carrier interposer and adjacent to the device.

4. The method as claimed in claim 1 wherein mounting the subassembly over the integrated circuit device includes mounting the device over the integrated circuit device.

5. A method of manufacturing an integrated circuit package-in-package system comprising:

mounting an integrated circuit device over a package carrier;

forming a subassembly including:

providing an integrated circuit package system having a carrier interposer with an integrated circuit die thereover, and

connecting a device under the carrier interposer with an electrical connector;

mounting the subassembly over the integrated circuit device with the device over the integrated circuit device; and

encapsulating the subassembly and the integrated circuit device over the package carrier.

6. The method as claimed in claim 5 wherein mounting the subassembly over the integrated circuit device includes mounting the device over an inner encapsulation of the integrated circuit device.

7. The method as claimed in claim 5 wherein mounting the subassembly over the integrated circuit device includes mounting the device over a flip chip.

8. The method as claimed in claim 5 further comprising forming the subassembly includes mounting a passive device to the carrier Interposer.

9. The method as claimed in claim 5 further comprising attaching an external interconnect under the package carrier.

10. An integrated circuit package-in-package system comprising:

a package carrier;

an integrated circuit device over the package carrier;

a subassembly over the integrated circuit device with the subassembly including:

an integrated circuit package system having a carrier interposer with an integrated circuit die thereover, and

a device under the carrier interposer, and

an inner encapsulation over the integrated circuit die and the carrier interposer; and

a package encapsulation as a cover for the subassembly and the integrated circuit device over the package carrier, with the inner encapsulation exposed by the package encapsulation.

11. The system as claimed in claim 10 further comprising a further device over the carrier interposer.

12. The system as claimed in of claim 10 further comprising a further device under the carrier interposer and adjacent to the device.

13. The system as claimed in claim 10 wherein the subassembly over the integrated circuit device includes the device over the integrated circuit device.

14. The system as claimed in claim 10 wherein:

the inner encapsulation is a first inner encapsulation over the integrated circuit die and the carrier interposer; and

the device includes an electrical connector attached to the carrier interposer and mounted over the integrated circuit device.

15. The system as claimed in claim 14 wherein the subassembly over the integrated circuit device includes the device over a second inner encapsulation of the integrated circuit device.

16. The system as claimed in of claim 14 wherein the subassembly over the integrated circuit device includes the device over a flip chip.

17. The system as claimed in claim 14 further comprising the subassembly includes a passive device connected to the earner interposer.

18. The system as claimed in claim 14 further comprising an external interconnect under the package carrier.