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17 August 2006


GaN sensor sensitive to UV-A/B/C radiation

After releasing the first samples in June, Hong Kong-based Orion Semiconductor, which started designing and manufacturing GaN-based UV sensors in Q4/2005, has started volume shipment of its OS100 GaN-based UV
sensor. Made using a proprietary GaN process, the device is sensitive to UV-A, B and C radiation but completely blind to the visible spectrum.

While typical UV sensors generate a wide output range for a given UV index, the OS100 can be supplied to a +/-3% tolerance, enabling the device to be used without in-circuit trimming.

Alternatively the device may be supplied in module form, producing a known amplified output for a given UV intensity. This minimizes the engineer's design effort and increases ease of manufacture, the company claims.

Typical applications include personal UV index measurement systems, pedometers with UV detection, watches, weather stations, fire detection systems, UV sterilization systems, climate control and medical equipment.

The device is available in a miniature surface-mount package or through-hole TO18 package suitable for harsh environments. Both packages are Pb free and RoHS compliant.

Visit: http://www.orion-semi.com