xMEMS labs introduces µCooling fan-on-a-chip for AI data centers: first in-module active cooling for high-performance optical transceivers

Originally developed for compact mobile devices, xMEMS µCooling now provides targeted, hyper-localized active cooling for dense, thermally-challenged environments inside 400G, 800G, and 1.6T optical transceivers — a critical yet underserved category in next-gen AI infrastructure.

 

xMEMS’ monolithic MEMS fan, fabricated in standard silicon processes, pumps a continuous stream of silent, vibration-free high velocity air pulses and is the only active cooling solution small and thin enough to be embedded inside the transceiver module. Thermal modeling shows that µCooling can remove up to 5W of localized heat, reducing DSP operating temperatures by over 15% and thermal resistance by more than 20%, enabling higher sustained throughput, improved signal integrity, and extended module lifetimes. 

 

A key innovation in µCooling’s system design is its implementation in a dedicated, isolated airflow channel that is thermally coupled to the transceiver’s internal heat sources but physically separated from the optical path and core electronics. This architecture ensures that optical components remain protected from dust or contamination, preserving signal clarity and transceiver reliability while still delivering impactful cooling performance.

“As data center interconnect demands scale rapidly with AI workloads, thermal bottlenecks are emerging at the component level — especially in optical modules that are sealed, power-dense, and space-constrained,” said Mike Housholder, VP of Marketing at xMEMS Labs. “µCooling is uniquely positioned to solve this by providing true in-module active cooling with no compromise to optics or form factor.”

Market analysts forecast strong growth in high-speed optical connectivity, with Dell’Oro Group projecting 800G and 1.6T transceiver shipments to grow at over 35% CAGR through 2028. As these modules scale in performance and power, cooling challenges are becoming a critical barrier to adoption.

µCooling’s solid-state, piezoMEMS design means no motors, no moving bearings, and no mechanical wear, enabling maintenance-free reliability and high-volume manufacturability. Its compact footprint, as small as 9.3 x 7.6 x 1.13mm, and scalable architecture make it ideal for modular deployments across a wide range of interconnects, including QSFP-DD, OSFP, and future pluggable and co-packaged optics.

For more information about xMEMS and our µCooling heat dissipation solution, visit xmems.com.