Method of fabricating a semiconductor multipackage module including a processor and memory package assemblies
View Patent ↗A method for making a semiconductor multi-package module includes a processor and a plurality of memory packages mounted on a surface of the multipackage module substrate. In some embodiments the memory packages include stacked die packages, and in some embodiments the memory packages include stacked memory packages. In some embodiments the processor is situated at or near the center of the multipackage module substrate and the plurality of memory packages or of stacked memory package assemblies are situated on the multipackage module substrate adjacent the processor.
1. A method for making a multi-package module, comprising:
providing a module substrate having first and second surfaces, providing a processor, and providing a plurality of memory packages;
mounting the processor on a processor attach portion of the first surface of the module substrate;
mounting the memory packages at least over a portion of the first surface of the module substrate that is at least partly adjacent the processor attach portion;
forming wire bond z-interconnection of at least one of the memory packages to the module substrate; and
forming an encapsulant over the memory packages.
2. The method of claim 1 wherein mounting the memory packages over the surface of the substrate comprises mounting the memory packages on the surface of the substrate.
3. The method of claim 1 wherein mounting the memory packages over a said surface of the substrate comprises mounting the memory packages over the first surface of the substrate.
4. The method of claim 1 wherein providing the plurality of memory packages comprises providing memory packages as a memory package assembly comprising a memory package affixed to and electrically connected to a memory assembly substrate, and wherein forming wire bond z-interconnection comprises forming wire bonds between the memory assembly substrate and the module substrate.
5. The method of claim 4 wherein providing the memory packages as a memory package assembly comprises providing a plurality of memory packages affixed to and electrically connected to a memory assembly substrate.
6. The method of claim 5 wherein providing the memory packages as a memory package assembly comprises providing a memory package substrate having first and second surfaces and providing at least one memory package affixed to and electrically connected to each surface of the memory assembly substrate.
7. The method of claim 5 wherein providing the memory packages as a memory package assembly comprises providing a memory package substrate and providing a plurality of memory packages affixed to and electrically connected to a surface of the memory assembly substrate.
8. The method of claim 4 wherein at least one of the memory packages is a ball grid array package.
9. The method of claim 4 wherein at least one of the memory packages is a land grid array package.
10. The method of claim 1 wherein providing the plurality of memory packages comprises providing memory packages as a memory package stack comprising a memory package affixed to and electrically connected to a memory stack substrate, and wherein forming wire bond z-interconnection comprises forming wire bonds between the memory stack substrate and the module substrate.
11. The method of claim 10 wherein providing the memory packages as a memory package stack comprises providing a plurality of memory packages affixed to and electrically connected to a memory stack substrate.
12. The method of claim 11 wherein providing the memory packages as a memory package stack comprises providing a memory stack substrate having first and second surfaces and providing at least one memory package affixed to and electrically connected to each surface of the memory stack substrate.
13. The method of claim 11 wherein providing the memory packages as a memory package assembly comprises providing a memory package substrate having and providing a plurality of memory packages affixed to and electrically connected to a surface of the memory assembly substrate.
14. The method of claim 10 wherein at least one of the memory packages is a ball grid array package.
15. The method of claim 10 wherein at least one of the memory packages is a land grid array package.
16. The method of claim 1 wherein providing the plurality of memory packages comprises providing memory packages as a memory package stack comprising a second memory package stacked onto a first memory package, and wherein forming wire bond z-interconnection comprises forming wire bonds between the memory packages and the module substrate.
17. The method of claim 1 wherein mounting the memory packages over a portion of the first surface of the module substrate that is at least partly adjacent the processor attach portion comprises mounting the memory packages over a portion of the module substrate that is entirely adjacent the processor attach portion.
18. The method of claim 17 wherein mounting the memory packages over a portion of the module substrate that is entirely adjacent the processor attach portion comprises affixing at least one of the memory packages onto the adjacent portion of the module substrate.
19. The method of claim 1 wherein mounting the memory packages over a portion of the first surface of the module substrate that is at least partly adjacent the processor attach portion comprises mounting the memory packages over a portion of the processor.
20. The method of claim 19 wherein mounting the memory packages over a portion of processor comprises affixing at least a portion of at least one of the memory packages onto the processor.
21. The method of claim 1 wherein providing the plurality of memory packages comprises mounting a first memory package onto the surface of the module substrate and mounting a second memory package onto the first memory package.
22. The method of claim 21 wherein the first memory package is a ball grid array package, and the second package is a land grid array package, and a second memory package, and wherein forming wire bond z-interconnection comprises forming wire bonds between the second package and the module substrate.
23. The method of claim 21 wherein each of the first memory package and the second memory package is a land grid array package, and wherein forming wire bond z-interconnection comprises forming wire bonds between each package and the module substrate.
24. The method of claim 23 wherein mounting the second memory package onto the first memory package comprises affixing a spacer onto the active surface of the first package and affixing the second package onto the spacer.
25. The method of claim 1 further comprising forming an encapsulant over the processor and the memory packages.
26. The method of claim 1 further comprising affixing a heat spreader and a heat slug over the processor, the heat spreader and the heat slug stabilized by an encapsulant material.