Substrate technology to boost diode yields

CrystalQ, Europe's first supplier of superior quality sapphire substrates, has received venture capital to complete further expansion of its high-tech production environment.

CrystalQ, Europe's first supplier of superior quality sapphire substrates, has received venture capital to complete further expansion of its high-tech production environment.

Based in a former production facility of Philips Semiconductors, CrystalQ has combined excellent resources, including more than 20 years of R and D knowhow in single crystal substrates to generate a new quality standard of sapphire substrates.

"The impulse of this venture capital secures the development and supply of our superior quality sapphire substrates to our customers", said Joris Barendregt, CrystalQ's General Manager.

"Although the quality of sapphire substrates that are available in the market has substantially improved over the last couple of years, high-brightness LED and laser-diode manufacturing companies still need further optimisation and cost-reduction of their production processes".

"These developments increase the demand for sapphire substrates that have superior surface and bulk material quality at reasonable prices".

CrystalQ has developed a unique production process resulting in a surface quality that enhances the epitaxial growth of GaN.

"With our specific surface treatment processes we managed to create a uniform, stepped sapphire surface that generates a uniform deposition of gallium-nitride with less defects".

"This property supports our customers with further increasing their yield and product durability", said Pepijn Fluks, Marketing and Sales Manager at CrystalQ.

"Our focus on consistent use of state-of-the-art technologies and on flexibility in substrate diameters creates opportunities for solid partnerships and allows us to anticipate future market demands".

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