Stackable integrated circuit package system with recess

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

forming an external interconnect having a planar first non-recessed surface of an interconnect non-recessed portion and an interconnect recessed portion;

providing a paddle adjacent the external interconnect;

mounting an integrated circuit die over the paddle; and

forming an encapsulation over the integrated circuit die with a portion of the planar first non-recessed surface near an end of the external interconnect exposed and a coplanar portion away from the end covered by the encapsulation, the encapsulation having a recess exposing the paddle.

2. The method as claimed in claim 1 wherein:

forming the external interconnect having the interconnect non-recessed portion and the interconnect recessed portion includes:

forming the external interconnect having an interconnect transition portion between the interconnect non-recessed portion and the interconnect recessed portion; and

forming the encapsulation further includes:

covering the interconnect transition portion.

3. The method as claimed in claim 1 wherein forming the external interconnect includes forming an interconnect curved portion from the interconnect non-recessed portion over a horizontal side of the encapsulation.

4. The method as claimed in claim 1 further comprising placing a device in the recess.

5. The method as claimed in claim 1 further comprising stacking a first stackable integrated circuit package system below a second stackable integrated circuit package system.

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

forming an external interconnect having a planar first non-recessed surface of an interconnect non-recessed portion and an interconnect recessed portion with an interconnect transition portion in between;

providing a paddle for die-attach and coplanar with the interconnect recessed portion mounting an integrated circuit die over the paddle;

connecting the integrated circuit die and the external interconnect; and

forming an encapsulation over the integrated circuit die with only a portion of the planar first non-recessed surface near an end of the external interconnect exposed and a coplanar portion away from the end covered by the encapsulation, the encapsulation having a recess exposing the paddle.

7. The method as claimed in claim 6 further comprising mounting a heat spreader in the recess.

8. The method as claimed in claim 6 further comprising:

placing a device in the recess; and

forming a package encapsulation around the device.

9. The method as claimed in claim 6 wherein:

forming the external interconnect includes:

forming an interconnect curved portion from the interconnect non-recessed portion over a horizontal side of the encapsulation; and

further comprising:

forming a package encapsulation around the stackable integrated circuit package system with the with the interconnect curved portion exposed.

10. The method as claimed in claim 6 further comprising:

stacking the stackable integrated circuit package system over a terminal;

stacking a device over the paddle in the recess; and

forming a package encapsulation around the stackable integrated circuit package system and the device with the interconnect non-recessed portion exposed.

11. A stackable integrated circuit package system comprising:

an external interconnect having a planar first non-recessed surface of an interconnect non-recessed portion and an interconnect recessed portion;

a paddle adjacent the external interconnect;

an integrated circuit die over the paddle; and

an encapsulation over the integrated circuit die with portions of the planar first non-recessed surface near an end of the external interconnect exposed and a coplanar portion away from the end covered by the encapsulation, the encapsulation having a recess exposing the paddle.

12. The system as claimed in claim 11 wherein the external interconnect includes an interconnect transition portion between the interconnect non-recessed portion and the interconnect recessed portion with the interconnect transition portion in the encapsulation.

13. The system as claimed in claim 11 wherein the external interconnect includes an interconnect curved portion from the interconnect non-recessed portion over a horizontal side of the encapsulation.

14. The system as claimed in claim 11 further comprising a device in the recess.

15. The system as claimed in claim 11 further comprising a first stackable integrated circuit package system below a second stackable integrated circuit package system.

16. The system as claimed in claim 11 wherein:

the external interconnect is a lead with the interconnect non-recessed portion and the interconnect recessed portion;

the paddle is a die-attach paddle coplanar with the interconnect recessed portion;

the integrated circuit die over the paddle is connected with the external interconnect; and

the encapsulation having the recess is over a first surface of the external interconnect and the integrated circuit die with the external interconnect exposed at the side of the encapsulation and with the paddle exposed in the recess.

17. The system as claimed in claim 16 further comprising a heat spreader in the recess.

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

a device in the recess; and

a package encapsulation around the device.

19. The system as claimed in claim 16 wherein

the external interconnect includes:

an interconnect curved portion from the interconnect non-recessed portion over a horizontal side of the encapsulation; and

further comprising:

a package encapsulation around the stackable integrated circuit package system with the with the interconnect curved portion exposed.

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

the stackable integrated circuit package system over a terminal;

a device over the paddle in the recess; and

a package encapsulation around the stackable integrated circuit package system and the device with the interconnect non-recessed portion exposed.