Chip packages are moving towards multi-kilowatt power levels, bringing higher heat loads alongside increasingly concentrated and dynamic hot spots. Single-phase cooling can respond with greater flow, more material and increased pumping power, while established two-phase approaches face challenges around orientation, liquid distribution, flow stability and form factor. Matrix flow boiling offers a different approach, using independently supplied boiling cells to distribute coolant directly across the heat source while separating liquid delivery from vapor removal. This session explores how this architecture combines characteristics of pool and flow boiling, and how it could evolve from the cold plate towards the package and silicon itself. This episode will discuss:
- Where single-phase and traditional two-phase cooling reach their limits
- How independent boiling cells improve flow and temperature uniformity
- What orientation independence and lower flow mean for system design
- How two-phase cooling could move from the cold plate to the silicon
