A three-dimensional integrated circuit is a single package containing multiple semiconductor dies stacked vertically and connected internally. This architecture reduces the distance signals must travel, lowering power consumption and increasing bandwidth compared to side-by-side placement on a PCB. It requires specialized interposers and through-silicon vias to route connections between the layers.
Heard on the job
We're using a 3D IC for the processor and memory to save board space and meet the timing requirements.
Insider tip
Designing boards for 3D ICs often involves managing significant localized heat, as stacking dies concentrates thermal output in a small footprint.