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Bergquist HI-FLOW THF 1600P: Henkel’s 20-40% failure reduction

Henkel Adhesive Germany
Overview
Henkel’s Bergquist® HI-FLOW THF 1600P phase-change thermal interface material (TIM) has been successfully deployed in next-generation motor controllers, effectively managing high power densities and meeting efficiency requirements. The 1.5 W/m-K material demonstrates exceptional reliability, maintaining performance after 500 hours at 120°C with superior temperature cycling stability. This TIM, solid at room temperature and flowing at its transition temperature, has extended product lifetime, boosted customer field reliability, and reduced field returns by 20% to 40%.
In Depth

Key Findings

Henkel’s Bergquist® HI-FLOW THF 1600P, a high-performance phase-change thermal interface material (TIM), has been successfully integrated into next-generation motor controllers, effectively addressing demanding power density and efficiency requirements. This implementation has demonstrably improved customer field reliability, leading to a significant reduction in field returns by 20% to 40%.

Technical / Clinical Details

The Bergquist® HI-FLOW THF 1600P features a thermal conductivity of 1.5 W/m-K. It is solid at room temperature but transitions to a liquid-like state upon reaching its phase-change temperature, allowing it to conform perfectly to microscopic surface irregularities between components (e.g., IGBTs, MOSFETs) and heatsinks. This ensures minimal thermal resistance and highly efficient heat transfer. Rigorous testing has validated its robust performance, including excellent temperature cycling stability and no degradation after 500 hours at 120°C. This exceptional durability is critical for motor controllers, which often operate in environments with continuous thermal fluctuations. By maintaining optimal operating temperatures, the TIM extends the lifespan of internal components, thereby enhancing the overall reliability of the motor controller system.

Background & Context

The electric vehicle (EV) and industrial motor sectors are increasingly pushing for more efficient and compact motor controllers. This trend invariably leads to higher power densities within the controllers, making thermal management a paramount concern. Excessive heat can severely degrade semiconductor performance and lead to premature failures, underscoring the indispensable role of reliable thermal interface materials. The successful deployment of Henkel’s Bergquist® HI-FLOW THF 1600P highlights the material’s ability to meet these escalating demands, providing a robust solution for critical thermal challenges in high-power applications.

Strategic Significance & Outlook

The demonstrated 20-40% reduction in field failures for motor controllers adopting Henkel’s Bergquist® HI-FLOW THF 1600P establishes a strong competitive advantage for this TIM in the market. This success is expected to drive broader adoption of similar phase-change TIM solutions across other sectors requiring high reliability and efficiency, such as renewable energy systems, industrial robotics, and data center power supplies. Henkel is well-positioned to leverage this proven technology to further develop and introduce advanced thermal management solutions that are not only high-performing but also environmentally conscious, continuously meeting the evolving and increasing demands of the global electronics industry.

Source: https://next.henkel-adhesives.com/sk/en/case-studies/phase-change-material-reliably-manages-heat-in-motor-controllers.html

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