Advanced packaging & chiplets
Heterogeneous integration of multiple dies.
As transistor scaling slows, performance increasingly comes from packaging: splitting a design into chiplets and integrating them on interposers (2.5D) or 3D stacks. Research covers die-to-die interconnect, thermal management, and known-good-die testing.
Technologies
Chiplets2.5D3D stackingHeterogeneous integration
Devices
SoCInterposerHBM stack
Materials
SubstrateSolder bumpsUnderfillTSV copper
Applications
AI / HPCData center
Active research directions
- Die-to-die interconnect standards
- Thermal management of 3D stacks
- Known-good-die test