このエピソードについて
For decades, chips received power and signals through the same crowded wiring on top. Now chipmakers build the chip, flip the wafer over, and feed power from the back. Helen explains how it works, what Intel and TSMC claim it delivers, and the trade-offs in heat, debugging and cost.
You'll learn:
- Why front-side wiring got crowded, and what "IR drop" means
- How a wafer is flipped, bonded, thinned and wired from behind
- What Intel's PowerVia and TSMC's Super Power Rail claim, and what they cost
For education only.
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