Dynamic Thermal Interface Material Tester
DynTIM is the industry’s cutting-edge solution for measuring thermal performance of thermal interface materials (TIM). Although thermal interface materials are used to establish good thermal contact between mating surfaces, in reality they are usually the largest barriers in the cooling path.
High Precision Test Environment
Therefore, TIM materials are major contributors to the thermal budget of a system so their proper selection may be the key to a successful design.However, the characterization of these thin, high thermal conductivity materials under realistic conditions for their application is extremely challenging using current methods.DynTIM is a high precision test environment designed to operate in connection with T3Ster, our leading thermal transient testing solution.
Using DynTIM the material to be tested is placed in a realistic thermal environment -- between a real diode package and a nickel plated copper cold-plate. The system can set-up the distance of the two surfaces with a resolution of 1 micrometer with minimal effort.
The thermal conductivity of samples is calculated based on the change of the thermal resistance of the TIM as a function of its thickness. This concept is similar to the ASTM standard; however, temperature is measured at one location only, at the junction of the semiconductor diode in the top grip. The fine temperature measurement (0.01°C temperature resolution) combined with the calculation of the applied power based on accurate electrical parameters is responsible for the high repeatability of the testing solution.
An Unrivaled TIM Testing Solution
DynTIM provides the industry’s unrivalled TIM measurement methodology – with an exceptional ±5% relative accuracy. The graph indicates that the datasheet values measured by traditional methods (dark grey bar) can significantly overestimate the thermal conductivity of TIMs and in this case by 9x. DynTIM provides fair measurement of these materials (dark blue bar) and its accuracy can be verified by different highly sophisticated methods established to verify TIM conductivity in laboratory conditions (light blue bar).
Test Large Variety of Materials
A variety of compressible materials such as greases, pastes, phase-changing materials and with some additional considerations, the test of adhesives and solid samples is also possible. In addition, by testing a wide range of TIMs, users can choose a narrowed selection of the best performing materials. Use in combination with T3Ster thermal characterization hardware to test the materials in-situ and in their target environment, for the best possible design decision.
Fast, Fully Automated Testing in Real Life Environment
DynTIM offers a fully automated testing process and allows users to test the TIM in its real application environment thereby saving time and effort in obtaining true-to-life results. A typical test lasts less than 20 minutes including preparation time.
Due to its simplicity and robustness, DynTIM can be operated by almost anyone after attending an 8-hour training session (optional).
“We have been using the T3Ster DynTIM tester and love its speed and ease of use. It uses a very accurate method for characterizing thermal interface materials because it automatically varies the thickness of the sample. DynTIM helps us to develop LED lighting modules with excellent thermal performance and to ensure their thermal reliability over the whole product lifetime.”
Dr. Thomas Zahner, Quality Manager, Osram Opto Semiconductors GmbH Regensburg, Germany