Products, Materials & Tools | Feb 07, 2012

Celcion™ Thick Film Material System that Outperforms Traditional MCPBCs

Heraeus Celcion™ is a Thick Film Materials System designed to build circuits directly onto aluminum substrates. Traditionally, MCPCBs are constructed using a subtractive process, taking time and wasting costly material. Celcion, however, is an additive process, using material only where it's needed, resulting in reduced processing steps and less material consumption. Celcion has been independently verified to deliver industry-leading thermal connectivity and high dielectric breakdown strength.

Heraeus Celcion is a Thick Film Materials System designed to build circuits directly onto aluminum substrates. Traditionally, MCPCBs are constructed using a subtractive process, adding then removing material. This takes time and often wastes costly material. Celcion, however, incorporates a selective additive deposition process flow—using material only where it's needed. The result is reduced processing steps, less material consumption and simplified bill of materials.

Celcion has been independently verified to deliver industry-leading thermal connectivity and high dielectric breakdown strength, compared to traditional MCPCBs. All materials can be fired at less than 600°C, and it is compatible with 3000, 4000, 5000 and 6,000 series aluminum substrates.

Material Comparison with MCPCB
Product:                                              MCPBC                          Celcion
Base Plate                                  Al or Cu (1.2 mm+)              Al (1.2 mm+)
Dielectric Layer                       Filled Epoxy 75-300 μm        Glass 40-75 μm
Circuit Layer                                 1-10 Oz. Cu foil                   8-12 μm Ag
Thermal Conductor Break                  1-2 W/m-K                      1-2 W/m-K
Down Voltage                                800-2000 V/mil                 ~1000 V/mil
Typical Cost (S/sqin)                        $0.25 - $0.50                 $0.25 - $0.35*
* Dependent on layout

Runs 10°C cooler:
By removing the thermal interface material altogether, Celcion provides a more direct connection to the Al heat sink. This reduces the heat spreading layers and thermal footprint, allowing Celcion circuits to run 10°C cooler than MCPCBs—performance you can actually see through a thermal gun.

Reduce LED cost:
Because Celcion circuits run 10°C cooler, you'll see an immediate increase in lumen power. This means designers can reduce the number of LEDs needed by up to 20%—without sacrificing performance. With less LEDs needed, you can dramatically decreases your production costs.
• Reduce LED chips
• Reduce heat sink size
• Higher output/lumens
• Increase LED life

New design options:
Celcion provides the same fit, form and function as traditional MCPCBs. But with improved performance benefits, such as reduced heat gain, your designers will be able to reduce the size of the Al heat sink and create new, streamlined design configurations, without sacrificing performance.

Because of Celcion's unique additive printing process, not only will you reduce the processing steps, number of materials and amount of materials consumed, but your design team can also make quicker and less design changes than traditional MCPCBs.

Celcion is ideal for high-power applications, including high-power LED substrates (>1W input) found in general illumination, signs, signals and displays. You'll also notice increased performance benefits in power electronics, heaters and auto manufacturing, to name a few.

Contact Information:
Heraeus Celcion™
24 Union Hill Road
19428 West Conshohocken, PA
USA
Phone: +1-610-825-6050
Contact: Yin Yin at  yin.yin@heraeus.com

About Heraeus:
Heraeus, the precious metals and technology group headquartered in Hanau, Germany, is a global, private company with 160 years of tradition. Our fields of competence include precious metals, materials, and technologies, sensors, biomaterials, and medical products, as well as dental products, quartz glass, and specialty light sources. With product revenues of €4.1 billion and precious metal trading revenues of €17.9 billion, as well as more than 12,900 employees in over 120 subsidiaries worldwide, Heraeus holds a leading position in its global markets.

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