Mixed-orientation multi-die integrated circuit package with at least one vertically-mounted die
A mixed-orientation multi-die (“MOMD”) integrated circuit package includes dies mounted in different physical orientations. An MOMD package includes both (a) one or more dies horizontally-mounted dies (HMDs) mounted horizontally to a horizontally-extending die mount base and (b) one or more vertically-mounted dies (VMDs) mounted vertically to the horizontally-extending die mount base. HMDs may include FPGAs or other high performance chips, while VMDs may include low performance chips and other physical structures such as heat dissipators, memory, high voltage/analog devices, sensors, or MEMS, for example. The die mount base of an MOMD package may include structures for aligning and mounting VMD(s), for example, VMD slots for receiving each mounted VMD, and VMD alignment structures that facilitate aligning and/or guiding a vertical mounting of each VMD to the die mount base. MOMD packages may provide a reduced lateral footprint and increased die integration per unit area, as compared with conventional multi-die packages.
1. A mixed-orientation multi-die package, comprising:
a horizontally-extending die mount base;
a vertically-extending slot formed in the horizontally-extending die mount base;
a first die mounted to the horizontally-extending die mount base in a horizontal orientation; and
a second die mounted to the horizontally-extending die mount base in a vertical orientation, wherein the second die is inserted in the vertically-extending slot in the die mount base.
2. The mixed-orientation multi-die package of claim 1 , further comprising a package substrate, wherein the horizontally-extending die mount base is mounted on and electrically coupled to the package substrate.
3. The mixed-orientation multi-die package of claim 1 , wherein a portion of metal layers required for operation of the first die are formed in the die mount base rather than in the particular first die itself.
4. The mixed-orientation multi-die package of claim 1 , further comprising at least one additional die mounted to the horizontally-extending die mount base in the vertical orientation.
5. The mixed-orientation multi-die package of claim 1 , further comprising:
at least one additional die mounted to the horizontally-extending die mount base in the horizontal orientation; and
at least one additional die mounted to the horizontally-extending die mount base in the vertical orientation.
6. A mixed-orientation multi-die package, comprising:
a horizontally-extending die mount base;
a high-performance die having an operating frequency of at least 300 MHz mounted to the horizontally-extending die mount base in a horizontal orientation; and
a non-high-performance die mounted to the horizontally-extending die mount base in a vertical orientation.
7. The mixed-orientation multi-die package of claim 6 , further comprising a package substrate, wherein the horizontally-extending die mount base is mounted on and electrically coupled to the package substrate.
8. The mixed-orientation multi-die package of claim 6 , wherein:
the high-performance die mounted to the horizontally-extending die mount base in the horizontal orientation comprises a microcontroller or microprocessor; and
the non-high-performance die mounted to the horizontally-extending die mount base in the vertical orientation comprises a memory device, an analog device, or a sensor.
9. The mixed-orientation multi-die package of claim 6 , wherein a portion of metal layers required for operation of the first die are formed in the die mount base rather than in the particular first die itself.
10. The mixed-orientation multi-die package of claim 6 , further comprising:
at least one additional high-performance die mounted to the horizontally-extending die mount base in the horizontal orientation; and
at least one additional non-high-performance die mounted to the horizontally-extending die mount base in the vertical orientation.
11. A mixed-orientation multi-die package, comprising:
a horizontally-extending die mount base;
a first die mounted to the horizontally-extending die mount base in a horizontal orientation;
a second die mounted to the horizontally-extending die mount base in a vertical orientation;
first alignment structures provided on the second die; and
second alignment structures provided on the die mount base;
wherein the first and second alignment structures are configured to interact to guide a vertical mounting of the particular second die to the die mount base.
12. The mixed-orientation multi-die package of claim 11 , wherein the second alignment structures project upwardly from an upper side of the die mount base.
13. The mixed-orientation multi-die package of claim 11 , wherein the second alignment structures are formed from a flexible or malleable material.
14. The mixed-orientation multi-die package of claim 11 , further comprising a package substrate, wherein the horizontally-extending die mount base is mounted on and electrically coupled to the package substrate.
15. A mixed-orientation multi-die package, comprising:
a horizontally-extending die mount base;
a first die mounted to the horizontally-extending die mount base in a horizontal orientation;
a second die mounted to the horizontally-extending die mount base in a vertical orientation;
wherein the second die includes a contact formed in a scribe line region and providing a conductive connection to the horizontally-extending die mount base.
16. The mixed-orientation multi-die package of claim 15 , wherein the contact formed in the scribe line region of the second die includes a U-shaped, cup-shaped, or arch-shaped contact element.
17. A method of assembling a mixed-orientation multi-die package, comprising:
providing a horizontally-extending die mount base including a vertically-extending slot;
mounting a first die to the horizontally-extending die mount base in a horizontal orientation; and
mounting a second die to the horizontally-extending die mount base in a vertical orientation by vertically inserting at least a portion of the second die in the vertically-extending slot.
18. The method of claim 17 , further comprising mounting and bonding the horizontally-extending die mount base to an underlying package substrate.
19. The method of claim 17 , further comprising:
mounting at least one additional die to the horizontally-extending die mount base in the horizontal orientation; and
mounting at least one additional die to the horizontally-extending die mount base in the vertical orientation.
20. The method of claim 17 , wherein:
mounting the first die in the horizontal orientation comprises mounting a high-performance device, having an operating frequency of at least 300 MHz, in the horizontal orientation; and
mounting the second die in the vertical orientation comprises mounting a non-high-performance device in the vertical orientation.
21. The method of claim 17 , wherein:
the die mount based includes a first conductive contact;
the second die includes a second conductive contact formed in a scribe line region of the second die; and
mounting the second die to the horizontally-extending die mount base in the vertical orientation comprises forming a conductive connection between the second conductive contact formed in the scribe line region of the second die and the first conductive contact of the die mount base.
22. The method of claim 17 , wherein:
the die mount base includes at least one first alignment structure projecting from an upper side of the die mount base;
the second die includes at least one second alignment structure; and
the at least one first alignment structure and the at least one second alignment structure cooperate to align the second die during mounting of the second die to the horizontally-extending die mount base in the vertical orientation.
23. A method of assembling a mixed-orientation multi-die package, comprising:
providing a horizontally-extending die mount base including at least one first alignment structure projecting from an upper side of the die mount base;
mounting a first die to the horizontally-extending die mount base in a horizontal orientation; and
mounting a second die to the horizontally-extending die mount base in a vertical orientation;
wherein the second die includes at least one second alignment structure; and
mounting the second die to the die mount base in a vertical orientation comprises aligning the at least one second alignment structure of the second die with the at least one first alignment structure projecting from the upper side of the die mount base.
24. The method of claim 23 , wherein:
the die mount based includes at least one first conductive contact;
the second die includes at least one second conductive contact formed in a scribe line region of the second die; and
mounting the second die to the horizontally-extending die mount base in the vertical orientation comprises forming a conductive connection between the second conductive contact formed in the scribe line region of the second die and the first conductive contact of the die mount base.