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Indexed by:期刊论文

Date of Publication:2018-07-01

Journal:MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS

Included Journals:SCIE

Volume:24

Issue:7

Page Number:3085-3094

ISSN No.:0946-7076

Abstract:Si micro heat pipe (MHP) is become an excellent passive cooling device for thermal management of micro electronics packages because of its considerable thermo-mechanical matching and fabrication feasibility with micro machining methods. The structural and operational parameters have nonlinear relationship which effect on thermal performance of MHP. In this experimental study, three different Si MHPs with same dimensions and hydraulic diameter of 120 mu m, and various cross-sections are fabricated by micro fabrication methods and tested under different conditions of fluid charge ratios and input powers. To obtain optimal condition among effective input variables of fluid ratio, input power and cross-section's shape, statistical method of Box-Behnken design (BBD) from response surface method family is used and experiments are performed according to BBD. Comparison between experiments and optimized model, demonstrated BBD method can establish acceptable relationship between effective input/output parameters, without solving the nonlinear and complex equations. Both theoretical and experimental methods confirmed that the trapezoidal MHP associated with rectangular artery which was charged with 40% of its vapor chamber's volume had the best thermal performance.