Integrated circuit assemblies with molding compound
View Patent ↗Embodiments of integrated circuit (IC) assemblies and related techniques are disclosed herein. For example, in some embodiments, an IC assembly may include a first printed circuit board (PCB) having a first face and an opposing second face; a die electrically coupled to the first face of the first PCB; a second PCB having a first face and an opposing second face, wherein the second face of the second PCB is coupled to the first face of the first PCB via one or more solder joints; and a molding compound. The molding compound may be in contact with the first face of the first PCB and the second face of the second PCB. Other embodiments may be disclosed and/or claimed.
1. An integrated circuit (IC) assembly, comprising:
a first printed circuit board (PCB) having a first face and an opposing second face;
a die electrically coupled to the first face of the first PCB;
a second PCB having a first face, an opposing second face, a first side, and a second side opposite the first side, wherein the second face of the second PCB is coupled to the first face of the first PCB via one or more solder joints; and
molding compound, wherein the molding compound is in contact with the first face of the first PCB, the second face of the second PCB, and one of the first or second sides of the second PCB, wherein another one of the first or second sides of the second PCB is free from contact with the molding compound.
2. The IC assembly of claim 1 , wherein the die is an application specific integrated circuit (ASIC).
3. The IC assembly of claim 1 , wherein a distance between the second face of the first PCB and the first face of the second PCB is less than 1 millimeter.
4. The IC assembly of claim 1 , wherein the first PCB has a length in a first direction and the second PCB has a length in the first direction that is less than the length of the first PCB.
5. The IC assembly of claim 1 , wherein the molding compound contacts the die.
6. The IC assembly of claim 1 , wherein the first face of the second PCB comprises a plurality of conductive contacts.
7. The IC assembly of claim 1 , wherein the molding compound does not contact the die.
8. The IC assembly of claim 7 , wherein the die is flip-chip mounted to the first face of the first PCB.
9. The IC assembly of claim 1 , further comprising:
one or more IC packages surface mounted to the second face of the first PCB.
10. The IC assembly of claim 1 , wherein the die is electrically coupled to the first face of the first PCB via one or more wire bonds.
11. The IC assembly of claim 1 , wherein the solder joints are covered by the molding compound.
12. The IC assembly of claim 1 , wherein the IC assembly comprises an edge finger connector, and wherein the edge finger connector includes conductive contacts on the second face of the first PCB.
13. The IC assembly of claim 12 , wherein the edge finger connector includes conductive contacts on the first face of the second PCB.
14. The IC assembly of claim 1 , wherein the IC assembly is a solid state drive.
15. The IC assembly of claim 1 , wherein a width of the IC assembly is approximately 22 millimeters.
16. The IC assembly of claim 15 , wherein a length of the IC assembly is approximately 42 millimeters.
17. An integrated circuit (IC) assembly, comprising:
a printed circuit board (PCB) having a first face and an opposing second face;
a die electrically coupled to the first face of the PCB;
molding compound having a first face and an opposing second face, wherein the second face of the molding compound is in contact with the first face of the PCB and the die is contacted by the molding compound; and
one or more through mold solder joints, extending from the first face of the PCB, through the molding compound, and beyond the second face of the molding compound, to couple the PCB with another PCB, wherein the other PCB is to have a first face, an opposing second face, a first side, and a second side opposite the first side, wherein the second face of the other PCB is to be coupled to the first face of the first PCB via one or more solder joints, wherein the molding compound is to be in contact with one of the first or second sides of the other PCB, wherein another one of the first or second sides of the other PCB is to be free from contact with the molding compound.
18. The IC assembly of claim 17 , wherein:
the IC assembly has a first face and an opposing second face;
the second face of the IC assembly includes the second face of the PCB; and
one or more IC packages are surface mounted to the second face of the PCB.
19. The IC assembly of claim 18 , wherein the one or more IC packages are not surrounded by a molding compound.
20. The IC assembly of claim 17 , wherein the other PCB comprises a motherboard, wherein the through mold solder joints are to be coupled to the motherboard such that the die is to be disposed between the PCB and the motherboard.