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The resolution of today's leading-edge image sensors is continuously increasing, while demand is high for the overall reduction of the camera-module footprint, particularly in consumer markets. This means the necessary development of smaller individual pixel sizes, while maintaining pixel sensitivity to produce high-quality images. Backside illumination is a key enabling technology to meet this challenge in the development of next-generation image sensors.
The agreement between the two companies includes the licensing by Soitec to ST of the Smart Stacking(TM) bonding technology for the manufacturing of backside-illumination sensors on 300mm wafers. This technology, developed by Soitec's Tracit business unit, leverages molecular bonding, and mechanical, as well as chemical thinning. ST will develop a new generation of image sensors based on its advanced derivative-CMOS process technology at 65nm and beyond, at its 300mm facility in Crolles, France. In combination with ST's advanced wafer-level manufacturing capabilities, the Smart Stacking technology will enable ST to increase its leadership in developing and supplying high-performance image sensors for mobile consumer products.
Contact:
Eric Aussedat, group VP and GM, Imaging Division, STMicroelectronics, www.st.com
Andre-Jacques Auberton-Herve, chairman and president, Soitec Group, www.soitec.com