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Industry News
July 1, 2011
Siltronic AG Joins imec GaN-on-Si Research Program
Siltronic AG and imec have concluded an agreement to collaborate on the development of silicon wafers with a gallium nitride layer as partner of imec’s GaN-on-Si industrial affiliation program (IIAP). The endeavor aims to enable production of solid-state lighting (e.g. LEDs) and power semiconductors of the next generation on 200 mm silicon wafers.
Gallium nitride (GaN) is a very promising material. Combining superior electron mobility, high breakdown voltage and good thermal conductivity, it is particularly suitable for optoelectronics and advanced power semiconductors. These are used, for example, in wind power turbines, solar power systems, electric vehicles and energy-saving kitchen appliances. In comparison with conventional, silicon-based applications, structures with GaN/(Al)GaN layers evidence a very efficient switching behavior. However, GaN technology still needs further refinement to also be economically competitive. To achieve this, inexpensive and efficient production methods for epitaxial deposition of GaN/(Al)GaN structures on larger-diameter silicon wafers are very promising.
In addition to Siltronic, other participants such as integrated device manufacturers (IDMs), foundries, silicon compound producers and substrate manufacturers are also involved in this multinational research platform. Siltronic will actively use the facilities and technical resources of imec in Leuven, Belgium. This coordinated on-site approach enables inter-company collaboration between all involved partners, while at the same time providing very early access to process and equipment technology for the next generation of LEDs and power semiconductors.
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"We are delighted to welcome Siltronic into our research network," said Rudi Cartuyvels, Vice President R&D Business Lines at imec. "Siltronic has an enormous amount of experience in epitaxial deposition on silicon wafers that will increase the momentum of our GaN program to deliver a manufacturable GaN technology on 200 mm silicon wafers."
"Siltronic is already the world market leader for silicon wafers used to manufacture discrete and integrated power devices," pointed out Dr. Rüdiger Schmolke, Senior Vice President Technology at Siltronic. "This research project will help us to further consolidate our leadership position in this market."
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