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'InteGreat' Project Researches New Approaches to Production of High-Efficiency LEDs
Sunnyvale, Calif. — April 1, 2015 — A fully optimized production concept for LED components and light modules in which all the process steps are coordinated with one another could give rise to completely new types of LEDs and reduce their manufacturing costs.
The declared objective of the “InteGreat” project that Osram is coordinating is to research new approaches to the production of high-efficiency light emitting diodes along the entire production process, to remove the boundaries between the individual value-added stages, and, as a result, to create new functionality and more flexibility.
Osram Opto Semiconductors and five partners from industry and research are combining their specific areas of expertise in this project, which is due to run until Nov. 30, 2017. “InteGreat" – named for “Integrated High-Volume Production along the LED Value-Added Chain for Large Wafers and Panels” – is being supported by the German Ministry for Education and Research as part of the “Photonic Process Chains” initiative.
A holistic view of the manufacturing process – from epitaxy (crystal growth) to the light source itself – should enable synergies to be exploited for maximum effect and new approaches and procedures to be developed.
“For the duration of the project, we will be researching completely new concepts for LED production and questioning the traditional paradigms of the manufacturing process,” said Dr. Jürgen Moosburger, project coordinator at Osram Opto Semiconductors.
Established technologies and processes from the microelectronics industry will be used and adapted to the specific requirements of LED production. Steps that up to now have been isolated will be networked, which will allow cost-intensive sorting and testing processes to be replaced by comprehensive routines. For the first time, this could enable production of modern high-power LEDs to be a unified process. “With the new production concepts, we expect to be in a position to develop both low-cost miniaturized LEDs and highly integrated modules,” Moosburger added.
To achieve these objectives, Osram Opto Semiconductors is coordinating this project with five partners – Osram GmbH, Fraunhofer-Gesellschaft, LayTec AG, Würth Elektronik GmbH & Co. KG, and Mühlbauer GmbH & Co. KG – all of whom are working closely together.
Osram Opto Semiconductors is bringing its years of experience and know-how in LED technologies to the table and is responsible for the integration and evaluation of the new processes. Osram GmbH, as a leading specialist in lighting solutions, will integrate the newly developed LED components into low-cost luminaires and is also contributing its expertise in process technologies. Mühlbauer, a global technology partner for the Smart Card, ePassport, RFID, and Solar Backend sectors, is contributing its knowledge of engineering to the high-precision processing of electrical components on flexible and fixed substrates, including the development of new processes.
Würth Elektronik is making its extensive experience in individual solutions for PC board production available. Specifically, it will be researching the ways in which the LED chip can be connected to the PC board. The Berlin-based instrumentation expert LayTec is analyzing innovative process control systems for LED manufacturing.
The Fraunhofer Institute for Reliability and Microintegration IZM and the Fraunhofer Institute for Integrated Systems and Device Technology IISB are researching the basic technological principles of process control and mounting technology. IZM will contribute its experience in connection technology, and IISB will work on the intelligent control of production processes.
The InteGreat project started on Dec. 1, 2014, and will be supported by the German Ministry for Education and Research as part of the “Photonic Process Chains” initiative until its planned finalization date of Nov. 30, 2017.
The “InteGreat” project will optimize the individual processes in LED production to develop new approaches and procedures and reduce manufacturing costs.