Micro-cooler for GPUs

Micro-cooler for GPUs

High-performance GPUs, like NVIDIA’s latest series, generate unprecedented heat, demanding advanced solutions. This challenge extends to AI-driven data centers and electric vehicles (EVs), where effective thermal management is essential for performance, reliability, and sustainability.

Solution for Data Center Servers

ARPA-E sponsored project along with collaboration from different organizations and research groups.

Using Liquid Cooling Solutions is the way to deal with high heat fluxes and efficient heat withdrawal. Cold Plate and Heat Sink designs played a vital role in making a micro-cooler that withdraws this heat from the GPUs and CPUs.

I was responsible for topology optimization using ANSYS Icepak and Fluent, as well as CAD modeling, while considering the thermal and liquid pumping requirements. Additionally, I assisted in experimental validation using LabVIEW by monitoring thermocouples and pressure differentials, and data analysis (signal processing) by correlating trends with IT-based information.

Different materials were considered for substrate CTE matching, to mitigate micro-cooler warpage, such as copper-tungsten alloy, copper, etc, for the microcooler fabrication. While CNC, Wire-EDM and 3D printed manufacturing techniques for micro-coolers were also compared.

My work also involved supply chain management and outreach to overseas suppliers, potential OEMs, niche market users, and sub-system manufacturers to evaluate commercialization and prepare a techno-economic analysis.