LEDs mounted more economically with Celcion® Thick Film material system than with conventional MCPCBs. Due to the good heat conductivity, Celcion®-based LEDs have either a longer service life or a higher light output. The Trademark registration ensures secure identification.
Heraeus has registered a trademark for its Celcion(R) Thick Film material system. This step shows the importance of the system for the LED market and the significance Heraeus attaches to it.
The Celcion® Thick Film material system was developed to affix circuits directly to aluminium substrates. With the innovative material system, LEDs are mounted more economically than on conventional MCPCBs (metal-core printed circuit boards).
System comparison
The conventional way is to wire LEDs on MCPCBs. This is a subtractive process, i.e. a process based on the removal of material. Apart from the time required, this production process consumes much raw material because the entire surface is pre-coated with an expensive insulating material and afterwards the unnecessary areas are removed.
In contrast to MCPCBs, the Celcion® system is a selective assembly process in which paste is applied only to the places where it is needed. This means fewer processing steps and reduced material consumption. Moreover, as thinner layers can be used, the overall cost is lower.
Reduced costs and at the same time 5 to 10°C cooler
Independent tests carried out by industry have shown that Celcion® has a better thermal conductivity and a higher dielectric break down strength compared to conventional MCPCBs. All materials can be fired at a temperature of less than 600°C and are compatible with the most varied aluminium types.
As Celcion® circuits are about 5 to 10°C cooler in operation they have a longer service light at identical light intensities. Conversely, this means that at the same temperature, designers can increase the light output by 20% with the same space coverage (or identical circuit size). This, in turn, lowers production costs.
Heraeus, the precious metals and technology group headquartered in Hanau, Germany, is a global, private company with more than 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 EUR4.8 billion and precious metal trading revenues of EUR21.3 billion, as well as more than 13,300 employees in over 120 subsidiaries worldwide, Heraeus holds a leading position in its global markets.
Kontakt:
Heraeus Precious Metals GmbH & Co. KG
Guido Matthes
Heraeusstr. 12-14
63450 Hanau
+49-6181.35 4583
guido.matthes@heraeus.com
http://heraeus-precious-metals.de/en/presse/pressemitteilungen/press.html
