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Electronics Cooling

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New Thermoelectric Peltier Cooler

 

Temperature control specialist Oven Industries Inc. has released a new line of thermoelectric peltier coolers for use in a variety of temperature control applications. Ideal for usage in universities, science laboratories, PCR research and businesses that specialize in temperature control, the 5R6-900 peltier cooler features an easy-to-read digital display for controlling … [Read more...]

Editorial – Getting Back to Basics

 

As a young engineer in the 1990s, I considered Electronics Cooling magazine as one of the first ports of call as a reference source when venturing into a new area of electronics thermal design. When I was invited to join Electronics Cooling’s editorial team, I re-read the first editorial by Kaveh Azar [1]. He outlined the need at that time (1995) for a publication vehicle that … [Read more...]

Testing of Power LEDs: The Latest Thermal Testing Standards from JEDEC

 

András Poppe, Ph.D.; Mentor Graphics MAD MicReD Unit   The electrical, thermal and optical parameters determining light emitting didoes (LEDs) operation are in a strong, mutual dependence; without knowledge about the parameters in one of these domains the other characteristics cannot be measured correctly. The reliability, useful operating life time and luminous flux are … [Read more...]

Heat Pipe Integration Strategies for LED Applications

 

Dr. Richard Bonner, Anqi (Angie) Fan, Daniel Pounds and Dr. Ehsan Yakhshi-Tafti; Advanced Cooling Technologies, Inc. INTRODUCTION In light-emitting diodes (LEDs), 70 percent to 80 percent of the applied electrical power is converted to waste heat. If this thermal energy is not properly dissipated, the resulting high operating temperatures lead to reduced brightness, shift … [Read more...]

Thin Film Thermal Conductivity Measurement using a Micropipette Thermocouple

 

R. Shrestha, K. M. Lee and T. Y. Choi - University of North Texas D. S. Kim - POSTECH   INTRODUCTION Due to the required experimental characterization complexity for the thermal conductivity measurement of thin films, accurate measurement of such materials has been difficult to achieve for thicknesses less than 1 µm. For example, conventional Fourier heater plate … [Read more...]

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