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11 October 2007


Thin-film chip technology pioneers nominated for German Future Prize

A team comprised of researchers from Osram and the Fraunhofer Institute for Applied Optics and Precision Engineering, both of Germany, has been nominated to receive the German Future Prize for its development of thin-film chip technology used in Osram’s high-power OSTAR LEDs.

To be presented by Federal President Horst Köhler in December, the prize is awarded in recognition of outstanding technical, engineering and scientific achievements that have practical applications, are marketable and create jobs.

The team nominated for the award includes the pioneers of thin-film technology Dr Stefan Illek and Dr Klaus Streubel from Osram, and Dr Andreas Bräuer from the Fraunhofer Institute for Applied Optics and Precision Engineering.  

Picture: Osram's thin-film technology pioneers Dr Klaus Streubel and Dr Stefan Illek.


Osram says that the innovation behind the OSTAR rests in the interplay between a new manufacturing process for high-power chips and the package platform and special optics developed in conjunction with the Fraunhofer Institute for Applied Optics and Precision Engineering.

“These technologies enable us to achieve particularly high luminances for LEDs of all colors and for infrared light. This is a pioneering innovation”, said Klaus Streubel, representing Osram Opto Semiconductors’ development team.

In the past, the substrate material remained in the diode after manufacture and absorbed much of the light being produced, but with Osram’s thin-film technology the original substrate is removed. The process involves coating the top surface of the light-generating layer with metal. The metallized side is then soldered onto a thin carrier material, which acts as a reflector, resulting in a highly-efficient, thin light-producing layer close to the top of the LED.






Picture: Osram's thin-film technology in action.

See related items:

Osram breaks ground on Malaysia LED chip fab

Osram doubles OSTAR Headlamp LED brightness to 620 lumens

Osram sampling 1000lm OSTAR LED for general lighting

Osram Opto expanding with new LED chip fab in Malaysia

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