Exclusively from Boston Materials

Liquid Metal ZRT®

5–8 °C cooling improvement for kilowatt-scale devices validated on
previous-generation NVIDIA datacenter GPUs and TTVs replicating Blackwell

Purpose-built for high power devices with large die array warpage
5 mm2-K/W thermal resistance at 150µm bond line thickness

Pick-and-placeable preform drops into automated assembly lines
Liquid metal is retained by carbon fiber, remains solid during assembly

Turnkey integration without any changes to silicon
No backside metallization or surface treatment is needed on the silicon

Drastic cooling impact to HBM, I/O, and CPO
Best performance when heat generation continues out to the edge of die array

Ready for wafer-scale compute
Max preform size of 150x150mm, roadmap to 240x240mm

Carbon fibers with 900 W/m-K thermal conductivity are vertically aligned using Boston Materials’ patented Z-axis Fiber™ technology and embedded within a liquid metal matrix (gallium-based).

The Z-axis aligned carbon fibers create a scaffold that retains the liquid metal into a preform that is solid during assembly. The preform melts during device operation but the liquid metal is still retained by the carbon fiber, ensuring a stable bond line thickness.

Liquid Metal ZRT® is optimized for TIM1.5 applications in advanced microprocessors where very low thermal resistance, containment of the liquid metal, repeatable surface coverage, and high reliability are critical.

This product does not contain nanomaterials.

Request ZRT® Liquid Metal Film TIM Data Sheet

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A New Class of Thermal InterfaceTM

Z-axis Carbon Fiber + Liquid Metal Preform, Exclusively from Boston Materials
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Enhance Liquid Cooling
with Liquid Metal ZRT®

Extend the Performance Envelope of Direct-to-Chip
Liquid Cooling for Kilowatt-scale Devices
  • 5°C+ cooling improvement compared to traditional thermal grease in high power applications
  • Offering secondary benefits in terms of water savings and reduced leakage
  • Validated on direct-to-chip liquid cooled 1,000W thermal test vehicle (TTV)
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