Integrated circuit packaging system with stacked paddle and method of manufacture thereof

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

forming a package paddle and a terminal adjacent to the package paddle, wherein forming the package paddle includes:

forming a first paddle and a second paddle; and

isolating the first paddle from the second paddle for providing a first reference source with the first paddle and for providing a second reference source with the second paddle;

attaching a stack paddle directly to the package paddle with a first stack adhesive, wherein the stack paddle is offset from a center of the package paddle;

mounting a first base integrated circuit directly to the package paddle with a first adhesive, wherein the first base integrated circuit is adjacent to the stack paddle and offset from the center of the package paddle;

mounting a second base integrated circuit directly to the first base integrated circuit with a second adhesive;

connecting a stack integrated circuit with the stack paddle, the terminal, the package paddle, or a combination thereof;

mounting the stack intergrated circuit directly over the stack paddle with a second stack adhesive; and

encapsulating the package paddle, the stack intergrated circuit, the stack paddle, the first base integrated circuit, and the second base integrated circuit with the package paddle partially exposed.

2. The method as claimed in claim 1 further comprising:

connecting the first base integrated circuit and the stack integrated circuit, the stack paddle, the terminal, the package paddle, or a combination thereof.

3. The method as claimed in claim 1 further comprising:

connecting the second base integrated circuit and the stack integrated circuit, the stack paddle, the terminal, the package paddle, or a combination thereof.

4. The method as claimed in claim 1 wherein attaching the stack paddle directly to the package paddle with the first stack adhesive includes electrically isolating the stack paddle and the package paddle.

5. The method as claimed in claim 1 wherein attaching the stack paddle directly to the package paddle with the first stack adhesive includes attaching the stack paddle directly to the package paddle with a non-conductive adhesive.

6. An integrated circuit packaging system comprising:

a package paddle, wherein the package paddle includes:

a first paddle; and

a second paddle adjacent to and isolated from the first paddle for providing a first reference source with the first paddle and for providing a second reference source with the second paddle;

a terminal adjacent to the package paddle;

a first stack adhesive directly on the package paddle;

a stack paddle directly attached to the package paddle with the first stack adhesive, the stack paddle offset from a center of the package paddle;

a first base integrated circuit directly attached to the package paddle with a first adhesive, the first base integrated circuit adjacent to the stack paddle and offset from the center of the package paddle;

a second base integrated circuit directly attached to the first base integrated circuit with a second adhesive;

a stack integrated circuit direct attached to the stack paddle with a second stack adhesive; and

an encapsulation molded directly on the package paddle, the stack integrated circuit, the stack paddle, the first base integrated circuit, and the second base integrated circuit.

7. The system as claimed in claim 6 wherein the stack integrated circuit is connected to the stack paddle, the terminal, the package paddle, or a combination thereof.

8. The system as claimed in claim 6 wherein the package paddle is exposed from the encapsulation.

9. The system as claimed in claim 6 wherein:

the stack integrated circuit is connected to the stack paddle, the terminal, the package paddle, or a combination thereof; and

the package paddle is exposed from the encapsulation.

10. The system as claimed in claim 6

wherein the first base integrated circuit is connected to the stack integrated circuit, the stack paddle, the terminal, the package paddle, or a combination thereof.

11. The system as claimed in claim 6

wherein the second base integrated circuit is connected to the stack integrated circuit, the stack paddle, the terminal, the package paddle, or a combination thereof.

12. The system as claimed in claim 6 wherein the stack paddle is electrically isolated from the package paddle.

13. The system as claimed in claim 6 wherein the first stack adhesive includes a non-conductive adhesive.