Thermal Interface Materials – TIM

Thermal Interface Materials (TIM) – The importance of thermal conductivity for optimal thermal management

In today's electronics industry, it is crucial to maximize the operating life and lifetime of semiconductors through efficient thermal management. A key aspect of this is the quality of the contacts between electronic components and their heat sinks. This is where thermal interface materials (TIM) come into play. These materials close the air gaps between the hot components and the heat sinks, thus ensuring optimal heat dissipation.

TIMs are not only thermal conductors, but also minimize mechanical stress on electronic boards. In addition, many TIMs act as electrical insulators, making them an indispensable component in the design of modern electronics. However, their ability to extend the service life of electronic components depends largely on their actual thermal conductivity.

How do you determine the actual thermal conductivity of a TIM?

When selecting a suitable thermal interface material for the interface between the power component and the heat sink, many engineers and technicians initially refer to technical data sheets. However, it is often noticeable that the measurement methods for the thermal conductivity of the various TIMs vary. Common standards such as ASTM D5470 or ISO standards sometimes lead to different results, which makes comparability difficult.

In order to reliably evaluate the actual performance of a TIM, the hot disk method according to ISO 22007-2 is recommended. This method is significantly more precise than conventional methods.

Advice and selection of the optimal thermal interface

If you use thermal interface materials in your electronic devices or are planning to do so, Dr. Dietrich Müller GmbH offers you competent advice. Our expertise and the tested properties of our TIMs enable us to recommend the best solutions for your specific requirements. We help you to ensure optimal thermal management in your applications and maximize the service life of your products.

The Dr. Dietrich Müller GmbH is the specialist for solutions in the electrical and electronics industry

Dr. Dietrich Müller GmbH is a renowned company based in Germany that specializes in the manufacture and supply of high-quality materials and solutions for the electrical and electronics industry. With a history dating back several decades, the company has earned a first-class reputation in the industry and is a leader in the development and manufacture of thermal conductivity products, insulation materials, gaskets, technical films and precision stamped parts.