Fully integrated one phase liquid cooling system for organic boards

D. May (1) , B. Wunderle (1) , F. Schindler-Saefkow (2) , B. Nguyen (1) , R. Schacht (1) , B. Michel (1) , H. Reichl (1)

1 Fraunhofer IZM - Fraunhofer Institute for Reliability and Microintegration
2 TU - Technical University of Berlin / Technische Universität Berlin

Prime concerns in designing liquid cooling solutions are performance, reliability and price. To that end a one-phase liquid cooling concept is proposed, where all pumps, valves and piping are fully integrated on board level. Only low-cost organic board technology and SMT processes are used in the design. This paper addresses the key issues of such a concept together with some numerical and first experimental results. It is highlighted that for such a concept a special type of membrane pump with adequate valve technology is especially suit- able. Design guidelines as to its performance are given. Eventually, the obtained results are eval- uated with respect to the requirements and nec- essary further developments are commented on to make the concept eligible for the cost-performance- sector.

Mots clés: Cooling concept; liquid cooling; CFD analysis; liquid pump

Domaines: Science des matériaux [cond-mat.mtrl-sci]

D. May, B. Wunderle, F. Schindler-Saefkow, B. Nguyen, R. Schacht, et al.. Fully integrated one phase liquid cooling system for organic boards. THERMINIC 2007, Sep 2007, Budapest, Hungary. pp.150-155. ⟨hal-00202552⟩