Podcasts · The Hardware Podcast with Fexingo: Chips, Devices, and Electronics Engineering Conversations
Why Chip Designers Are Turning to Backside Power Delivery
· 7:07 · S2 E56
Episode Why Chip Designers Are Turning to Backside Power Delivery
In this episode of The Hardware Podcast, Lucas and Luna explore the emerging trend of backside power delivery networks—a radical redesign of how chips get their electricity. They break down why traditional frontside power delivery is hitting a wall as transistors shrink below 3 nanometers, and how moving power wires to the back of the silicon frees up space for signal routing and reduces voltage drop. The discussion centers on Intel's PowerVia technology, expected in their 20A node, and TSMC's competing approach. Lucas explains the manufacturing challenges—like wafer thinning and through-silicon vias—and why this shift could extend Moore's Law for another node or two. Luna brings up the cost implications and asks whether backside power is a one-time fix or a lasting solution. The episode closes with a reflection on how fundamental changes to chip architecture, rather than just shrinking transistors, are keeping the industry on track.
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Transcript
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