Called Lioelm FTS, “Toyochem researchers in Japan were able to solve the performance trade-off problem between the elastic modulus and thermal resistance that typically arises in conventional epoxy-based thermal interface materials”, said the firm. “Lioelm FTS is a thermal material that maintains an ultra-low elastic modulus. Thanks to its soft consistency and special rheology, it fills in every void and conforms to every rough surface, thus creating a high strength interface between the heatsink and the package.”

So flexible is Lioelm FTS, that is can be origami-ed into a crane, as Toyo demonstrated

Thermal durability and insulation reliability are retained up to 180°C, while maintaining thermal conductivity up to 10W/mK.

The key, said the firm, is a unique polymer with highly conductive fillers. “This enables the interface material to effectively dissipate sizeable levels of heat for the most demanding power electronics, in particular for next-generation electric vehicles,” it said.

Use within SiC, GaN and Si power modules as well as LED lighting, and Peltier heat pumps, is also foreseen.

Toyochem will be spotlighting the material at PCIM (Power Conversion and Intelligent Motion) Europe Nuremberg ovar 5-7 June (stand 6-359. Kaori Nakamura of parent company Toyo Ink will present a seminar on Lioelm FTS on June 7, 2:20-2:40pm.