A new material with a thermal conductivity more than three times that of copper and a weight less than one-third of copper! It allows for control over the thermal conductivity itself and the direction of heat transfer.
Award-winning product of the 23rd Small and Medium Enterprises Excellent Technology and New Product Award "Excellence Award"! Maintaining the high thermal conductivity of core material high thermal conductivity graphite, its brittleness has been reinforced through a composite with copper plates, allowing for various machining processes. Furthermore, metal coatings such as nickel and gold are also possible, making soldering easier. Additionally, it has a heat resistance of about 650°C in the atmosphere, contributing to solving the traditional issue of high thermal resistance.
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basic information
It is a composite material made of ultra-high thermal conductivity graphite plates and copper. Although copper, with a thermal conductivity of 400 W/mk, is widely used as a heat sink despite its weight issues, many customers involved in research and development or thermal design express concerns such as, "I want to reduce the size of the copper heat spreader due to weight restrictions," and "The thermal conductivity of copper is insufficient for heat dissipation and thermal diffusion." Compoloid Cu is a new composite material that combines graphite, which has a thermal conductivity four times that of copper at 1700 W/mk and a weight of 2.22 g/CC (one-fourth that of copper), with copper plates. There are no voids at the bonding interface, and the insert material is appropriately bonded to both the graphite and copper, allowing heat to transfer efficiently without resistance at the interface. The base material, the graphite plate, is processed for thermal conductivity in the vertical (Z) direction at 1700 W/mk, so the vertical thermal conductivity of Compoloid Cu varies based on the thickness (volume) ratio of copper to graphite, but it exceeds 750 to 1200 W/mk. In the horizontal direction, it achieves pseudo-isotropic thermal conductivity at 1700 W/mk and 400 W/mk. It is possible to manufacture large-area pseudo-isotropic thermal conductivity plates with a maximum size of 200□mm and dry heat sticks up to 900mm in length.
Price information
Prices vary depending on size and quantity, so please feel free to contact us.
Delivery Time
※The delivery time may vary depending on the quantity, so please feel free to contact us.
Applications/Examples of results
IGBT, heat sink, heat pipe, etc.
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Company information
The encounter with the miraculous 1700 W/mk ultra-high thermal conductivity graphite, which everyone had almost given up on commercializing, was the reason our company, Thermographics, was established on July 1, 2009. As a result of collaborative research and development with numerous customers, we have been developing a range of composite products made from ultra-high thermal conductivity graphite under our original brand "Comproid" since October 2011. Within two years of its launch, Comproid achieved over 150 prototype results and has garnered attention and support mainly from customers in the automotive, aerospace, medical device, and computer industries, with full-scale mass production starting in March 2012.