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Avoid the Void® Using Heat-Spring Metal Thermal Interface Materials

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  • Avoid the Void

  • Voiding is a major issue in the area of thermal management because air is a terrible conductor of heat. Anytime you have air entrapped in your thermal interface material, you're going to get decreased performance of that device. Grease is a commonly used thermal interface material and over time, because of thermal cycling and CTE mismatches, that grease tends to pump-out creating these air pockets, or voids.
    To improve the performance and reduce the voiding or air pockets you get with the grease, you need a solid material. Heat-Spring is a metal thermal interface material that is compressed between the device and the heat spreader. Because it's a solid piece of material, it's not prone to pumping-out like a grease would. It also, because it's metal, has a very high thermal conductivity.
    To learn more about how to Avoid the Void™ and Indium Corporation's Heat-Spring product, contact us at or myself directly at