As the power and power density of IC components continue to rise [1], the need to effectively dissipate the heat to ensure long-term reliability has increased [2]. The largest contributor to the total thermal resistance along the heat conduction path comes from the thermal interface material (TIM) used between the surfaces of the silicon die and the heat spreader or heat sink. … [Read more...]
Advances In High-Performance Cooling For Electronics
Introduction The need for new cooling techniques is driven by the continuing increases in power dissipation of electronic parts and systems. In many instances standard techniques cannot achieve the required cooling performance due to physical limitations in heat transfer capabilities. These limitations are principally related to the limited thermal conductivity of air for … [Read more...]
Cooling Solutions In The Past Decade
Introduction In 1995, a typical thermal design engineer was aware that removing heat was not going to get any easier in the next few years. A look back at the past ten years reveals that thermal management remained a challenging field. Fortunately, developments and improvements in thermal management hardware have assisted the electronics packaging community by enabling higher … [Read more...]
GCS Theory Applied to Thermal Interface Materials
There are 819 kinds of Thermal Interface Material (TIM) - those greases, putties, pads and phase change compounds that go between hot electronic components and their heat sinks - and just as many ways to misuse them. This article covers all of them by stating: If a TIM disappoints, it is all your fault for making one or more of these silly mistakes. Never Learning How to Make a … [Read more...]
Phase Change Material Thermal Properties
Table 1. General Solid-Liquid PCM Characteristics [1] When electronics are operated under transient conditions, increasing the thermal capacitance is a useful technique for limiting temperature increases and/or minimizing the performance requirements of a heat sink. One effective method of increasing thermal capacitance is to include a material that undergoes a change of … [Read more...]
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