SME 2D Tech - Development and characterization of graphene-enhance material for cooling of large power electronics

Important results from the project

The project was conducted as SME-project within the frames of Vinnovas Competence center project "2D Tech". 4 types of graphene-enhanced thermal interface materials (TIMs) have been developed and characterized using newly designed mechanical insertion cycling equipment, which simulates power cycling tests for high-power module cooling. The project successfully met its goals. Collaborations have been established and strengthened with the three largest semiconductor companies globally. Besides, a post-curing process was developed to enhance the mechanical properties of graphene-enhanced TIMs by > 20%.

Expected long term effects

A standardized mechanical cycling test using the newly developed equipment will be established to evaluate novel thermal interface materials more easily and efficiently, significantly shortening the product qualification process. Graphene-enhanced thermal interface materials (TIMs) are expected to gain widespread acceptance and application in electronics modules with high power dissipation, strengthening Sweden’s global competitiveness via the Vinnova 2D Tech Center at Chalmers.

Approach and implementation

The project progressed as planned, starting with an investigation into the specifications of graphene-enhanced TIM and the power cycling setup. TIM optimization and the design and fabrication of the power cycling setup were carried out in parallel. This was followed by power cycling tests and further optimization, including the development of a post-curing process. Characterization was conducted throughout for continuous evaluation. The collaborators were satisfied with the results.