Introduction Measurement of the temperature distribution of an operating electroniccomponent, including its junction and case temperatures, is necessary tocompletely characterize the thermal and electrical performance of today's highpower density electronic components. As part of the characterization process,thermal designers must be able to predict and verify the … [Read more...]
Electrical temperature measurement using semiconductors
Introduction Semiconductor junctions offer many useful properties including inherentcharacteristics which are well suited to temperature measurement. Within theelectronics cooling arena, these properties form the basis for "theelectrical method of junction temperature measurement" and are used formeasurement of junction temperatures within operating semiconductor devices. They … [Read more...]
Thermal resistance of interface materials as a function of pressure
A very large factor in reducing thermal interface resistance is theapplication of pressure. Even though much effort in recent years has beendevoted to improving the thermal conductivity of interface materials, thethermal conductivity of a material is only a piece of the heat transfer puzzle. As shown in Figure 1, the thermal resistance created by the material itself(RM) for a … [Read more...]
Thermal Interface Materials
Thermattach thermally conductive adhesivetapes Introduction Today's semiconductors, whether discrete power or logic ICs, are smaller,run faster, do more and generate more heat. Some microprocessors dissipatepower levels that were once the exclusive domain of discrete power devices,namely 10 to 25 watts. These power levels require thermal management techniquesinvolving large … [Read more...]
Thermal control of space electronics
Introduction Telecommunication satellites are all based on the same overall design usinga 3 axis stabilization process, in which the North and South panels act asradiators and so ensure heat removal. This basic principle is illustrated in Figure 1. The ever-increasing demandfor national and international space-based communications in parallel with theevolution of space … [Read more...]
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