Integrated circuit package-on-package system with anti-mold flash feature

1. An integrated circuit package-on-package system comprising:

mounting an integrated circuit package system having a mountable substrate over a package substrate;

forming a package encapsulation having both a recess and an anti-mold flash feature over the package substrate and the integrated circuit package system including:

forming the anti-mold flash feature having an extension width at the bottom of the recess, and

partially exposing the mountable substrate in the recess with the anti-mold flash feature over the mountable substrate; and

mounting an integrated circuit device over the mountable substrate in the recess.

2. The system as claimed in claim 1 wherein:

mounting the integrated circuit package system includes:

having the mountable substrate with a contact pad;

forming the package encapsulation having both the recess and the anti-mold flash feature includes:

exposing the contact pad in the recess;

preventing contamination from the package encapsulation over the contact pad with the anti-mold flash feature; and

mounting the integrated circuit device over the mountable substrate in the recess includes:

connecting the integrated circuit device and the contact pad.

3. The system as claimed in claim 1 wherein forming the anti-mold flash feature having the extension width at the bottom of the recess includes forming the package encapsulation having a stepped configuration at the bottom of the recess.

4. The system as claimed in claim 1 wherein:

mounting the integrated circuit package system includes:

having the mountable substrate with a contact pad;

forming the package encapsulation having both the recess and the anti-mold flash feature includes:

exposing the contact pad in the recess;

preventing contamination from the package encapsulation over the contact pad with the anti-mold flash feature; and

mounting the integrated circuit device over the mountable substrate in the recess includes:

connecting an electrical connector of the integrated circuit device and the contact pad.

5. The system as claimed in claim 1 wherein forming the package encapsulation having both the recess and the anti-mold flash feature includes forming a sloped portion of the package encapsulation in the recess to the anti-mold flash feature.

6. An integrated circuit package-on-package system comprising:

mounting an integrated circuit package system having a mountable substrate over a package substrate with the mountable substrate having a contact pad;

connecting the integrated circuit package system with the package substrate;

forming a package encapsulation having both a recess and an anti-mold flash feature over the package substrate and the integrated circuit package system including:

forming the anti-mold flash feature having an extension width at the bottom of the recess, and

exposing a portion the mountable substrate and the contact pad in the recess with the anti-mold flash feature over the mountable substrate not contaminating the contact pad; and

mounting an integrated circuit device having an external connector over the mountable substrate in the recess with the external connector connected with the contact pad.

7. The system as claimed in claim 6 wherein mounting the integrated circuit package system having the mountable substrate over the package substrate includes mounting the integrated circuit package system over an integrated circuit with the integrated circuit over the package substrate.

8. The system as claimed in claim 6 wherein mounting the integrated circuit device having the external connector over the mountable substrate in the recess with the external connector connected with the contact pad includes connecting the external connector having a connector height adjacent to the anti-mold flash feature having a bleed protection height with the connector height is greater than the bleed protection height.

9. The system as claimed in claim 6 wherein forming the package encapsulation having both the recess the anti-mold flash feature includes molding the package encapsulation in a mold chase complementary structures at an interior side for forming the anti-mold flash feature.

10. The system as claimed in claim 6 further comprising attaching an external interconnect with the package substrate at an opposing side to the integrated circuit package system.

11. An integrated circuit package-on-package system comprising:

a package substrate;

an integrated circuit package system having a mountable substrate over the package substrate;

a package encapsulation having both a recess and an anti-mold flash feature over the package substrate and the integrated circuit package system including:

the anti-mold flash feature having an extension width at the bottom of the recess, and

the mountable substrate partially exposed in the recess with the anti-mold flash feature over the mountable substrate; and

an integrated circuit device mounted over the mountable substrate in the recess.

12. The system as claimed in claim 11 wherein:

the mountable substrate includes a contact pad exposed in the recess and the anti-mold flash feature for preventing contamination from the package encapsulation over the contact pad; and

the integrated circuit device is connected the contact pad.

13. The system as claimed in claim 11 wherein the anti-mold flash feature having the extension width at the bottom of the recess includes the package encapsulation having a stepped configuration at the bottom of the recess.

14. The system as claimed in of claim 11 wherein:

the mountable substrate includes a contact pad exposed in the recess and the anti-mold flash feature for preventing contamination from the package encapsulation over the contact pad; and

the integrated circuit device includes an electrical connector connected with the contact pad.

15. The system as claimed in claim 11 wherein the package encapsulation having both the recess and the anti-mold flash feature includes a sloped portion of the package encapsulation in the recess to the anti-mold flash feature.

16. The system as claimed in claim 11 wherein:

the mountable substrate includes a contact pad exposed in the recess and the anti-mold flash feature for preventing contamination from the package encapsulation over the contact pad;

the package encapsulation includes a sloped portion in the recess to the anti-mold flash feature; and

the integrated circuit device includes an electrical connector connected with the contact pad.

17. The system as claimed in claim 16 wherein the integrated circuit package system having the mountable substrate over the package substrate includes the integrated circuit package system over an integrated circuit with the integrated circuit over the package substrate.

18. The system as claimed in of claim 16 wherein:

the external connector has a connector height and adjacent to the anti-mold flash feature; and

the anti-mold flash feature has a bleed protection height with the connector height is greater than the bleed protection height.

19. The system as claimed in claim 16 wherein the integrated circuit device includes a packaged integrated circuit.

20. The system as claimed in claim 16 further comprising an external interconnect attached with the package substrate at an opposing side to the integrated circuit package system.