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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

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