As AI accelerators drive ultra high thermal design power and heat flux requirements, direct to die cooling is emerging as the next evolutionary step beyond cold plate and TIM based architectures. But not all fluid strategies are equal when performance, risk, and manufacturability are considered at scale.

In this Accelsius whitepaper, Why Two Phase Will Win the Direct to Die Race, the engineering case for refrigerant based two phase cooling is examined against water based single phase approaches. From leak risk and bio growth to thermal uniformity and flow rate demands, the paper explores how fluid choice impacts reliability, deployment timelines, and chip longevity.

Download it now to explore:

• The performance case: How two phase direct to die demonstrated 2x performance versus direct to chip, reducing thermal resistance and enabling higher facility water temperatures
• The risk comparison: Why non conductive refrigerants eliminate catastrophic leak risk and corrosion concerns associated with water based systems
• The scalability advantage: How isothermal cooling, lower flow rates, and simplified design can accelerate adoption and reduce complexity for next generation AI processors