In this paper, a novel thermal testbed with an embedded micropin-fin heat sink is designed and fabricated. The micropin-fin array has a nominal height of 200 μm and a diameter of 90 μm. Single phase and two phase thermal testing of the micropin-fin array heat sink are performed using deionized (D.I.) water as the coolant below atmospheric pressure. The measured pressure drop is as high as 100 kPa with a mass flux of 1637 kg/m2s at a heat flux of 400 W/cm2 in a two-phase regime. The heat transfer coefficient and the vapor quality are calculated and reported. The impact of microfluidic cooling on the electrical performance of the 3D interconnects is also analyzed. The high aspect ratio through silicon vias (TSVs) used in the electrical analysis have a nominal diameter of 10 μm.
- Electronic and Photonic Packaging Division
3D IC With Embedded Microfluidic Cooling: Technology, Thermal Performance, and Electrical Implications
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Zhang, X, Han, X, Sarvey, TE, Green, CE, Kottke, PA, Fedorov, AG, Joshi, Y, & Bakir, MS. "3D IC With Embedded Microfluidic Cooling: Technology, Thermal Performance, and Electrical Implications." Proceedings of the ASME 2015 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems collocated with the ASME 2015 13th International Conference on Nanochannels, Microchannels, and Minichannels. Volume 3: Advanced Fabrication and Manufacturing; Emerging Technology Frontiers; Energy, Health and Water- Applications of Nano-, Micro- and Mini-Scale Devices; MEMS and NEMS; Technology Update Talks; Thermal Management Using Micro Channels, Jets, Sprays. San Francisco, California, USA. July 6–9, 2015. V003T10A008. ASME. https://doi.org/10.1115/IPACK2015-48584
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