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Matthias M. Reinig
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SCHOTT offers customized wafers made of specialized glass for use in microsystems technology
The MEMS market is experiencing a boom. In 2006, global sales of microelectromechanical systems amounted to approx. 17 billion US dollars. In 2009, this figure is expected to surpass 25 billion. These extremely small components are used in micro-optics and biochips, print heads and acceleration sensors that ignite airbags.
The highest possible precision is required in manufacturing glass wafers. They either serve as a substrate material or stabilizing element and are often combined with silicon components. However, they can also take on an active role on their own, as ducts used to mix chemicals in microreactors or as substrates for laser lenses, for example.
Glass wafers from SCHOTT offer customers important advantages: The wafers produced by SCHOTT, the international technology group, are extremely even, thanks to very precise surface processing, and they deviate in terms of thickness by a maximum of five micrometers. These wafers contain zero defects and are perfectly clean. In fact, they can even be delivered in containers that ensure clean room quality, if required. “None of our competitors can match our quality,” Anett Leibiger, Product Manager at SCHOTT Lithotec in Jena, is convinced.
In addition to its high standards for quality, SCHOTT also raises the bar when it comes to flexibility. Most of the glass wafers for use in MEMS applications, but also applications in the area of biotechnology or wafer level packaging, are custom designed to meet the requirements of the customer. For example, SCHOTT offers a broad selection of special glass types, including AF 45 (alkali-free glass), D 263 T (low alkali glass), Borofloat® 33, B 270 Superwite (highly transparent specialized glass) or even high purity synthetic fused silica Lithosil®. These round wafer are available in basic sizes of 4, 6 and 8 inches (100, 150 and 200 mm), as well as individual formats. Thicknesses vary between 0.05 and 2 millimeters and almost any types of structuring and feedthroughs are possible.
SCHOTT is an international technology group that sees its core purpose as the lasting improvement of living and working conditions. For this purpose special materials, components and systems are developed. The main areas of focus are the household appliances industry, optics and opto-electronics, pharmaceuticals and solar energy. The SCHOTT Group has a presence in proximity to its customers through its production and sales companies in all its major markets. It has approximately 16,800 employees producing worldwide sales of approximately 2,2 billion euros. The company’s technological and economic expertise is closely linked with its social and ecological responsibility.
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