Cooling technology • Technology
A dielectric working fluid boils at a processor cold plate and condenses elsewhere in a sealed loop.
Architecture
Two-phase direct-to-chip systems use latent heat: a dielectric fluid changes from liquid to vapor at the cold plate, carrying heat away at a controlled temperature. The vapor is condensed and returned in a closed loop.
Why teams choose it
What to validate
Connected records
A two-phase direct-to-chip thermal-management company developing rack and multi-rack systems under the NeuCool platform.
A two-phase direct-to-chip cooling company using a dielectric fluid in closed-loop systems designed for high-density compute.
Connected records
Processor-mounted heat exchangers that move GPU, CPU, memory, or power-electronics heat into a liquid loop.
CDUs control flow, pressure, temperature, water quality, and heat exchange between facility and technology cooling loops.
Connected records
DarkNX agreed to deploy Accelsius NeuCool across a planned 300 MW AI data-center campus in Ontario.
Accelsius deployed its NeuCool IR80 two-phase direct-to-chip system at Equinix's DC15 Co-Innovation Facility in Ashburn.
SoftBank, ZutaCore, and Foxconn demonstrated a rack-integrated two-phase direct-to-chip system using NVIDIA H200 GPUs.
Evidence ledger
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Direct answers
Concise answers generated from the structured record and its cited evidence.
Two-phase direct-to-chip systems use latent heat: a dielectric fluid changes from liquid to vapor at the cold plate, carrying heat away at a controlled temperature. The vapor is condensed and returned in a closed loop.
Two-phase direct-to-chip cooling is classified as emerging technology. Positioned for 80–250+ kW racks.
High heat flux capability through phase change; Non-conductive fluid around electronics; Can operate with warmer facility-water temperatures.