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Follow on Google News | March Issue of Qpedia Thermal eMagazine- Electronics Cooling Publication from ATSApril 12, 2010 - March issue of Qpedia - electronics cooling eMagazine is now posted on ATS' website.
By: ATS MarComm Critical Heat Flux of Boiling in Microchannels A liquid-cooled microchannel heat sink has been shown to be a very effective way to remove high heat load. The single-phase liquid cooled microchannel has been used in many performance- such as laser diodes, RF power amplifiers and CPU cooling systems. Long Term Thermal Grease Reliability Among the different TIM options, thermal greases typically offer the best thermal performance and reduced manufacturing cycle times though, depending on the application method, assembly can be messy. Thermal greases have the ability to flow and conform to interfaces, do not require post-dispense processing such as curing, and have higher effective thermal conductivity compared to other classes of materials. Using Silicon Microchannel Heat Sinks for Thermal Management If high pressures with relatively low flow are allowable in a design, the microchannel heat sink is a very attractive option that can perform better than most coldplate designs. Reliability concerns about fittings or connections are heightened because of the increase in fluid pressure at the outlet of the pump and inlet of the cold plate. Tubing Material Selection for Liquid Cooling Tubing can play a large role in the long term reliability of the solution. It is important to fully understand tubing characteristics, how they relate to evaporation, and how the loss of liquid affects the operation of the system (including pump cavitation and air blockage in a cold plate). Cooling News New products, services and events from around the industry # # # ATS - Advanced Thermal Solutions, Inc. - Celebrating 20th year - is a leading engineering and manufacturing Co. supplying thermal and mechanical packaging products for the electronics industry. Contact ats-hq@qats.com or visit our website at www.qats.com End
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