AI may dominate headlines, but heat is quietly becoming the
defining constraint of the AI era.
As model sizes grow and workloads intensify, thermal limits
are shaping how—and where—AI can scale.
GPUs are rapidly crossing 1,500Watts and heading toward 2,000Watts and beyond.
At these power levels, cooling is no longer a background
infrastructure concern.
It directly affects performance stability, energy
efficiency, water consumption, site selection, and total cost of ownership.
Traditional air and liquid cooling approaches are reaching
their limits.
Dense AI clusters generate extreme, uneven heat profiles
that conventional cold plates were never designed to handle efficiently.
This has created urgency to rethink semiconductor
manufacturing itself.
New processes adapted to metal wafers now enable 3D
short-loop jet channel microstructures, multistage cooling, and hybrid 3D cell
designs.
These architectures allow cooling systems to be precisely
matched to GPU power maps, targeting hotspots rather than treating the chip as
thermally uniform.
The result is dramatically improved heat extraction where it
matters most.
Early implementations show materially higher thermal
performance alongside up to 50% weight reduction compared to conventional cold
plates—an advantage critical for dense data centers and even space-based
systems.
The bigger shift is strategic: cooling is no longer a
component decision.
It is becoming a system-level enabler for AI scale, efficiency, and sustainability—quietly determining the future pace of AI progress
By Advik Gupta

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