Over the past several years thermal engineers and others in the computer industry have become acutely aware of the challenge of increasing power dissipation and the potential of liquid (principally water) cooling to provide a thermal management solution. A number of articles in ElectronicsCooling have addressed both the issue of increased power dissipation [1-4] and various … [Read more...]
2U Rack Mountable Vapor Compression Cooling System For High Power Electronics
Vapor compression refrigeration has long been used to cool telecommunications equipment and some high performance computers. On the whole, however, its usage has been confined to high-value, relatively large, and stationary applications. The advantages of vapor compression cooling (VCC) systems are fairly well known. They can provide heat sinks at below ambient temperatures … [Read more...]
Thermo-Reflectance Thermography For Submicron Temperature Measurements
The primary approach to maintaining the aggressive progress in the microelectronics industry has been to increase the density of elementary transistors and to reduce the size of their active areas. As a result, the removal of heat generated by various internal system components has become a major design challenge, further complicated by the lack of knowledge of the temperature … [Read more...]
Thermal Properties Of Building Materials
Previous Technical Data columns have covered thermal properties for many of the materials that are common to electronics packaging. The Technical Data for this issue is broader in scope and addresses common building materials, some of which are used in heat transfer laboratory environments, in addition to their usual construction applications. Knowledge of thermal conductivity … [Read more...]
Thermal Modeling Approaches Of GaAs Semiconductors
Introduction Predicting gallium arsenide (GaAs) semiconductor temperature is imperative since it affects the performance and reliability of the chip and the design as a whole. In many circumstances, the thermal engineer will be asked to provide expeditious and accurate answers to trade studies regarding various FET layouts and geometry, metallization schemes, and conduction … [Read more...]
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