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CeramCool® Substrates

CeramCool® Substrates

CeramCool® Substrates

Product catalog summary
Overview: The document discusses CeramCool® substrates, highlighting their efficiency in heat dissipation, electrical insulation, and thermal conductivity. These substrates are particularly beneficial in high-power density applications, such as multi-LED chips.
Specifications: CeramCool substrates are directly metalized, allowing electrical circuits without thermal barriers. They offer low total thermal resistance (Rtt) and high break-through voltage. The substrates are made from Rubalit® alumina and Alunit® aluminum nitride, known for their superior thermal conductivity compared to conventional PCBs.
Advantages: The closer the ceramic is to the heat source, the greater the cooling benefits. CeramCool substrates can halve the substrate surface and double the power density. They are ideal for applications where high power densities are required, reducing thermal resistance significantly.
Comparative Analysis: The document compares Alunit substrates with PCB-IMS, showing that Alunit reduces thermal resistance from 15K to 2K at 150mW/mm². Rubalit substrates can cut thermal resistance in half and support up to 50% higher power density, while Alunit can support up to twice the power density.
Customization and Assembly: Customer-specific layouts can be printed directly onto ceramics. Both sides can be metalized and connected by filled vias, suitable for 3D pick-and-place machines. This allows for easy mounting of electronic components and splitting into final units.
Graphical Data: The document includes graphs comparing thermal resistance and power density across different substrates (MC-PCB, Rubalit, Alunit), illustrating the superior performance of ceramic substrates in reducing thermal resistance and increasing power density.
Recommendations: The document suggests using Rubalit and Alunit substrates to replace conventional PCB IMS for better thermal management. It emphasizes the negligible thermal resistance of Alunit, allowing users to focus on the advantages without concern for thermal barriers.
Contact Information: CeramTec GmbH, Electronic Applications Division, Marktredwitz, Germany. Phone: +49 9231 69 - 453, Email: [email protected], Website: www.ceramtec.com
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Catalog excerpts

CeramCool® Substrates-1

Electronic Applications Division CeramCool® Substrates Wherever things get hot! The closer ceramic is placed to the heat source, the greater the cooling advantages it offers. This makes directly of the CeramCool system grow with the packing density, so it’s perfect for use wherever things get hot! metalized CeramCool substrates one of the most efficient options for efficient thermal management. The advantages • Most efficient area of heat dissipation • Cut the substrate surface in half! • Electrical insulation, thermal conductivity and • Double the power density! electrical circuit • Electrical circuits without thermal barrier directly on CeramCool • Ceramic PCB with lowest Rtt total thermal resistance • High break-through voltage

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CeramCool® Substrates-2

Forget about it Ceramic CeramCool substrates are electri- reduces the thermal resistance of the PCB by cally isolating, thermally conductive and can be about 50%. With Alunit the thermal resistance metalized directly. No thermal barrier blocks is negligible, so you can forget about it and en- optimal heat dissipation. This makes them per- fect for replacing a conventional PCB IMS (insulated metal substrate). Using Rubalit substrates Increase the power density Reduce the thermal resistance Alunit MC-PCB • Rubalit: Cuts thermal resistance in half • Alunit: Thermal resistance is negligible Alunit...

 Open the catalog to page 2

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