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Solder with excellent heat resistance for plated electrodes! Achieving high reliability, high density, and multifunctional products for various applications!
We realize the commercialization of various high-density and multifunctional products for applications such as ceramic heaters, optical communication packages, LED packages, sensor packages, and SMD packages.
It is possible to produce a "super high quality" aluminum nitride film on a low-cost sapphire substrate!
Ultraviolet light-emitting devices are widely attracting attention as next-generation light sources for applications such as alternatives to fluorescent lamps, high-density DVDs, biochemical lasers, decomposition of pollutants using photocatalysts, He-Cd lasers, and alternatives to mercury lamps. These ultraviolet light-emitting devices consist of AlGaN-based wide bandgap semiconductors, which are layered on heterogeneous substrates such as sapphire. However, there have been challenges with the AlN films grown on sapphire, as they contain numerous threading dislocations and exhibit poor quality. The present invention significantly improves the crystallinity of the AlN films through a simple method of thermally treating substrates with AlN films grown on sapphire in a mixed gas of N2/CO.
