Two-Phase Cooling Moves From Lab to Commercial Deployment
Two-phase direct-to-chip cooling, which uses a dielectric fluid that boils and condenses to absorb heat far more efficiently than single-phase liquid systems, has moved from laboratory demonstration into commercial deployment at several hyperscale facilities over the past two years. Vendors including LiquidStack and JetCool have shipped commercial two-phase systems capable of dissipating over 1,500 watts per chip, meaningfully exceeding the practical limits of conventional single-phase cold plate designs. Adoption remains concentrated among the highest-density accelerator deployments where single-phase cooling can no longer keep pace with chip thermal design power requirements at current chip generations.
Market Impact: Chips exceed 1,000 watts each








