Podcasts · The Hardware Podcast with Fexingo: Chips, Devices, and Electronics Engineering Conversations
How Chips Are Cooling Themselves With Microfluidic Channels
· 9:19 · S2 E81
Episode How Chips Are Cooling Themselves With Microfluidic Channels
Episode 81 of The Hardware Podcast with Fexingo dives into on-chip microfluidic cooling—a technology that embeds tiny liquid channels directly into silicon to remove heat where it's generated. Lucas and Luna explore a concrete case: a 2025 demonstration by a major foundry where a 3D-stacked processor with embedded microfluidic channels reduced hotspot temperatures by over 60 degrees Celsius compared to traditional air cooling. They discuss how the channels are etched, how coolant is pumped, and why this is more scalable than external liquid cooling loops. The episode also touches on the economic trade-offs—adding fabrication steps increases die cost by roughly 15 percent, but for high-performance chips used in AI training and data centers, the performance gains often justify the expense. No prior knowledge of fluid dynamics required.
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