Silicon microchannel

Chung PM-Y, Kawaji M (2004) The effect of channel diameter on adiabatic two-phase flow characteristics in micro-channels. Int J Multiphase Flow 30 735-761 Colgan E (2005) A practical implementation of silicon microchannel coolers for high power chips. 

Qu, W., Mala, G. M., Li, D., Pressure-driven water flows in trapezoidal silicon microchannels, Int. J. Heat Mass Transfer 43 (2000) 353-364. 

Kikuchim, Y., Chun, K., Fujita, H., Micromachined straight-through silicon microchannel array for monodispersed microspheres, in Matlosz, M., Eheeeld,... 

T. Kawakatsu, H. Komori, M. Nakajima, Y. Kikuchi, and T. Yonemoto Production of Monodispersed Oil-in-Water Emulsion Using Crossflow-Type Silicon MicroChannel Plate. J. Chem. Eng. Jpn 32, 241 (1999). 

Qu et al. [37, 38] performed an experimental investigation on pressure drop and heat transfer of water in trapezoidal silicon microchannels with a hydraulic diameters ranging from 62 to 169 pm. They also carried out a numerical analysis by solving a conjugate heat transfer problem involving simultaneous determination of the temperature field in both the solid and the fluid regions. They found that the experimentally determined Nusselt... 

Wu, H.Y. and Cheng, P., An Experimental Study of Convective Heat Transfer in Silicon Microchannels with Different Surface Conditions, Int. J. Heat Mass Transfer, 2003, 46, 2547-2556. 

W. Qu, Gh.M. Mala, and D. Li, Heat transfer for water flow in trapezoidal silicon microchannels, International Journal of Heat and Mass Transfer 43, 3925-3936 (2000). 

Kricka L J, Ji X, Nozaki O, Heyner S, Garside W T and Wilding P 1994 Sperm testing and microfabricated glass-capped silicon microchannels Clin. Chem. 40 1823-4... 

Kawakatsu T, Komori H, Nakajima M, Kikuchi Y, Yonemoto T. Production of monodispersed oU-in-water emulsion nsing crossflow-type silicon microchannel plate. Journal of Chemical Engineering of Japan. 1999 32 241-244. 

Flow boiling in microchannels is currently at the research stage. The experimental methods employed are evolving as temperature and pressure measurements in the microchaimels require deployment of sensors that are microfabricated. For this reason, silicon microchannels with embedded pressure and temperature sensors are being pursued. This is an area where further research is needed to establish the measurement techniques. Metal and ceramic heat exchanger... 

Zhang L, Wang EN, Goodson KE, Kenney TW (2005) Phase change phenomena in silicon microchannels. Int J Heat Mass Transf 48 1572-1582... 

Zhang L, Goodson KE, Kenny TW (2004) Silicon microchannel heat sinks. Springer, Berlin/Heidelberg... 

Mishra C, Peles Y (2005) Cavitation in flow through a micro-orifice inside a silicon microchannel. Phys Fluids 17(1) 013601-013616... 

Microdialysis, Fig. 4 (a) Microdialysis membrane sandwiched between two etched sets of silicon microchannels with interdigitated sensing electrodes (Image taken from Pan et al. [10]) (b) Schematic of optical setup for phase separation polymerization to define the... 

Chein and Huang [15] analyzed the silicon microchannel heat sink performance using Cu — H2O nanofluid. Two specific geometries, one with Vkch = fin = 100 fiin and Lch = 300 pm and the other with Wch = = 57 pm and... 

Wu HY, Cheng P (2003) Friction factors in smooth trapezoidal silicon microchannels with different aspect ratios. Int J Heat Mass Trans 46(14) 2519-2525... 

The model described has been applied to compressible air flow with Reynolds numbers in the range of 500 to 1,500. These values were obtained using Eq. 5 that is also valid for shockwave propagation in a narrow channel [2]. Further, based on the analysis of gas flow characteristics in silicon microchannels [6], the friction coefficient/has been found to be approximately 0.04 for a Reynolds number of 500, while for Reynolds numbers greater than 1,000, the friction coefficient becomes less than 0.005. 

Shockwaves in Microchannels, Fig. 7 Silicon microchannels (a) Top view, (b) Bottom view... 

Ying-Tao D, Zhao-Hui Y, Meng-Yu S (2002) Gas flow characteristics in straight silicon microchannels. ChinPhys 11(9) 869-875... 

Silicon Micromachining, Fig.1 Schematic of cross-sectional view of isotropically etched silicon microchannels using wet chemical etchants of NHA... 

Microcharmels and holes can be micromachined using wet chemical etching. However, as geometries of micro-device components get smaller, the requirement to etch silicon microchannels with vertical profile becomes important. An increase in aspect ratio for microstructures (e.g., microcharmel) is desirable because more devices can be made from the same size of silicon substrate and also lead to enhanced device characteristics. 

Let us consider the silicon microchannel heat sink shown in Fig. 1 the microchannels obtained by chemical etching on the silicon wafer are in general closed by a Pyrex glass cover bonded to the substrate or by silicon wafer. A liquid flows through the channels due to the small size of the microchannels, the flow is typically laminar. The... 

The average fully developed Nusselt number for rectangular silicon microchannels is plotted as a function of the Brinkman number in Fig. 4 with three (Fig. 4a) and four (Fig. 4b) sides heated, respectively. 

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