Integrated circuit packaging system having asymmetric encapsulation structures and method of manufacture thereof

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

providing a substrate;

mounting a first internal integrated circuit structure and a second internal integrated circuit structure over the substrate;

connecting the first internal integrated circuit structure and the second internal integrated circuit structure to the substrate with internal interconnects;

forming asymmetric encapsulation structures above the first internal integrated circuit structure and the second internal integrated circuit structure;

encapsulating the first internal integrated circuit structure and the internal interconnects with an encapsulation in contact with the asymmetric encapsulation structures; and

mounting an external integrated circuit package above the first internal integrated circuit structure, the second internal integrated circuit structure, or a combination thereof.

2. The method as claimed in claim 1 wherein:

forming the asymmetric encapsulation structures includes forming a first wire-in-film with a planar top above the first internal integrated circuit structure and a second wire-in-film with a planar top, or forming a first dam with a planar top and a second dam with a planar top above the second internal integrated circuit structure; and

encapsulating includes encapsulating with the encapsulation having a planar top, and the planar top of the encapsulation is level with the planar top of the first wire-in-film and the planar top of the second wire-in-film, or level with the planar top of the first dam and with the planar top of the second dam.

3. The method as claimed in claim 1 wherein:

forming the asymmetric encapsulation structures includes forming a first wire-in-film or a second wire-in-film around the internal interconnects, forming a first dam or a second dam beside the internal interconnects, or a combination thereof.

4. The method as claimed in claim 1 wherein:

mounting the first internal integrated circuit structure includes mounting a first internal integrated circuit die; and

further comprising:

mounting a first interposer above the first internal integrated circuit die.

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

providing a substrate;

mounting a first internal integrated circuit structure and a second internal integrated circuit structure over the substrate;

connecting the first internal integrated circuit structure and the second internal integrated circuit structure to the substrate with internal interconnects;

mounting a first internal integrated circuit die between the first internal integrated circuit structure and the second internal integrated circuit structure and mounted over the substrate;

forming asymmetric encapsulation structures above the first internal integrated circuit structure and the second internal integrated circuit structure;

encapsulating the first internal integrated circuit structure, the first internal integrated circuit die, and the internal interconnects with an encapsulation in contact with the asymmetric encapsulation structures; and

mounting an external integrated circuit package above the first internal integrated circuit structure, the second internal integrated circuit structure, or a combination thereof.

6. The method as claimed in claim 5 wherein:

forming the asymmetric encapsulation structures includes forming first set of metal pillars and a second set of metal pillars.

7. The method as claimed in claim 5 wherein:

forming the asymmetric encapsulation structures includes forming a first wire-in-film with a planar top, or a first dam with a planar top above the first internal integrated circuit structure and forming a second wire-in-film with a planar top, or a second dam with a planar top above the second internal integrated circuit structure; and

encapsulating includes creating an exposed surface above the first internal integrated circuit structure and an exposed surface above the second internal integrated circuit structure.

8. The method as claimed in claim 5 further comprising:

mounting a second internal integrated circuit die above the first internal integrated circuit die.

9. The method as claimed in claim 5 wherein:

forming the asymmetric encapsulation structures includes forming a first wire-in-film with a planar top, or a first dam with a planar top above the first internal integrated circuit structure and forming a second wire-in-film with a planar top, or a second dam with a planar top above the second internal integrated circuit structure;

encapsulating includes creating an exposed surface above the first internal integrated circuit structure and an exposed surface above the second internal integrated circuit structure; and

further comprising:

mounting metal pillars below the first internal integrated circuit structure and the second internal integrated circuit structure.

10. An integrated circuit packaging system comprising:

a substrate;

a first internal integrated circuit structure and a second internal integrated circuit structure mounted over the substrate;

internal interconnects connecting the first internal integrated circuit structure and the second internal integrated circuit structure to the substrate;

asymmetric encapsulation structures formed above the first internal integrated circuit structure and the second internal integrated circuit structure;

an encapsulation in contact with the asymmetric encapsulation structures, with the encapsulation encapsulating the first internal integrated circuit structure and the internal interconnects; and

an external integrated circuit package mounted above the first internal integrated circuit structure, the second internal integrated circuit structure, or a combination thereof.

11. The system as claimed in claim 10 wherein:

the asymmetric encapsulation structures are a first wire-in-film with a planar top above the first internal integrated circuit structure and a second wire-in-film with a planar top, or the asymmetric encapsulation structures are a first dam with a planar top and a second dam with a planar top above the second internal integrated circuit structure; and

the encapsulation has a planar top, and the planar top of the encapsulation is level with the planar top of the first wire-in-film and the planar top of the second wire-in-film, or level with the planar top of the first dam and with the planar top of the second dam.

12. The system as claimed in claim 10 wherein:

the asymmetric encapsulation structures are a first wire-in-film or a second wire-in-film around the internal interconnects, the asymmetric encapsulation structures are a first dam or a second dam beside the internal interconnects, or a combination thereof.

13. The system as claimed in claim 10 wherein:

the first internal integrated circuit structure is a first internal integrated circuit die; and

further comprising:

a first interposer mounted above the first internal integrated circuit die.

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

a first internal integrated circuit die mounted between the first internal integrated circuit structure and the second internal integrated circuit structure and mounted over the substrate; and

wherein;

the first internal integrated circuit die, and the internal interconnects are encapsulated with the encapsulation.

15. The system as claimed in claim 14 wherein:

the asymmetric encapsulation structures are a first set of metal pillars and a second set of metal pillars.

16. The system as claimed in claim 14 wherein:

the asymmetric encapsulation structures are a first wire-in-film with a planar top, or a first dam with a planar top above the first internal integrated circuit structure and the asymmetric encapsulation structures are a second wire-in-film with a planar top, or a second dam with a planar top above the second internal integrated circuit structure; and

further comprising:

an exposed surface created above the first internal integrated circuit structure and an exposed surface created above the second internal integrated circuit structure.

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

a second internal integrated circuit die mounted above the first internal integrated circuit die.

18. The system as claimed in claim 14 wherein:

the asymmetric encapsulation structures are a first wire-in-film with a planar top, or a first dam with a planar top above the first internal integrated circuit structure and the asymmetric encapsulation structures are a second wire-in-film with a planar top, or a second dam with a planar top above the second internal integrated circuit structure;

further comprising:

an exposed surface created above the first internal integrated circuit structure and an exposed surface created above the second internal integrated circuit structure; and

metal pillars mounted below the first internal integrated circuit structure and the second internal integrated circuit structure.