LED thermal substrate passes UL safety tests
The UL certification for Heraeus Celcion recognizes that the material system is a reliable, safe alternative to traditional metal core printed circuit board (MCPCB) manufacturing.
Heraeus Celcion is a thick film material system that was designed to produce electronic circuits for LED lighting on aluminum (Al) substrates. Celcion is able to take the same fit, form and function as MCPCBs, but delivers an increased thermal conductivity and high-dielectric breakdown strength. The process incorporates a selective additive deposition that uses material only where it is needed, which results in less material consumption. By using a limited amount of material and removing interface materials, this reduces the thermal resistance and provides a more direct connection to the Al heat sink. Celcion circuits typically run 10°C or more cooler than MCPCBs, which allows designers an increase in lumen power output and reduces the number of LEDs needed by up to 20 percent. The solution decreases production costs and enables customers to add another material choice for high-power applications to their design kit, without sacrificing performance.
The Celcion material system is ideal for use in high-power applications – including high-power LED substrates (>1 W input) found in general illumination, signs, signals, and displays – with distinguished performance benefits in power electronics and heaters.
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