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CMOS image sensor
Ilse Jurriƫn : October 27th 2005 - 01:50 CET
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AMI SemiconductorCMOS image sensor IC from AMI Semiconductor : AMI Semi conductor, a designer and manufacturer of state-of-the-art integrated mixed-signal and structured digital products for the automotive, medical and industrial markets, today introduced a high performance CMOS imaging IC for intelligent camera applications. The high performance AMIS-70700 optoelectronic device - realized in AMI Semiconductor's automotive qualified technology - has been developed in partnership with CMOS image sensor and camera specialist Photonfocus AG. The new device will simplify the design and implementation of high quality digital camera applications in automotive, industrial, security and surveillance systems.
CMOS image sensorPhotonfocus LinLog technology
The AMIS-70700 can be used at temperatures ranging from -40 degrees C to 105 degrees C. High pixel resolution of 750 x 400 is combined with an RS232 image output speed up to 60 full frames per second. The IC combines low fixed pattern noise with a very high signal-to-noise ratio (SNR) and uses built-in compensation techniques to minimize high temperature leakage. Use of the Photonfocus LinLog technology contributes to the IC's high dynamic range and ensures acquisition of high contrast images without image lag or smear, even at high frame rates. In addition, the LinLog 'global shutter' capability allows fast moving scenes to be captured without motion artifacts.

High performance AMIS-70700 CMOS image sensor
The high performance, wide operating temperature range and high SNR capabilities of the new IC make it well suited for new and emerging 'real-time' intelligent camera applications. In the automotive sector these include driver assistance systems such as rear view park assist and blind spot detection, and obstacle detection and avoidance systems, where the need for accurate edge and pattern identification demands clarity and high speed operation in all driving conditions. In the industrial and security environments the AMIS-70700 meets requirements for high quality digital cameras capable of operating in low light or the infrared spectrum, and in high temperature applications such as welding process monitoring.

CMOS sensor - AMIS IC implementation
A key element in the AMIS IC implementation has been the use of the Photonfocus LinLog technology. LinLog overcomes the drawbacks of pure logarithmic image sensors by using a linear response at low illumination levels and logarithmic compression at high intensities. Transition between the two is optimized to prevent artifacts and discontinuities. The use of linear response at low light levels increases the signal swing at the output of the pixel to maximize sensitivity. In addition it reduces the effects of fixed pattern offset and gain noise associated with logarithmic sensors.

AMI Semiconductor AMIS 70700 image sensor
"From must-have automotive comfort and safety systems to industrial and security products, intelligent digital cameras are becoming a key element of new and emerging applications," said Bob Klosterboer, senior vice president of mixed-signal products for AMI Semiconductor. "The AMIS-70700 IC provides an integrated and cost-effective solution that delivers the high levels of functionality and performance that these applications demand, while lowering component count and simplifying circuit design."

CMOS image sensor - EMPHIS-300
Available now in production quantities, the AMIS-70700 (also known as the EMPHIS-300 by Photonfocus) is supplied as bumped and un-bumped probed wafer. A ceramic CLCC 52-pin package option suitable for use in harsh environments is also available. Pricing is $52 in sampling quantities. An evaluation kit can be offered to assist engineers in evaluating and implementing the new IC in their intelligent camera applications. Photonfocus will act as AMI Semiconductor's distribution partner for industrial applications based on the new device, in addition to providing technical application support to AMIS automotive customers.

About AMI Semiconductor
AMI Semiconductor (AMIS) is a leader in the design and manufacture of silicon solutions for the real world. As a widely recognized innovator in state-of-the-art integrated mixed-signal and structured digital products, AMIS is committed to providing customers with the optimal value, quickest time-to-market semiconductor solutions. Offering unparalleled manufacturing flexibility and dedication to customer service, AMI Semiconductor operates globally with headquarters in Pocatello, Idaho, European corporate offices in Oudenaarde, Belgium, and a network of sales and design centers located in the key markets of North America, Europe and the Asia Pacific region.

About Photonfocus AG
Photonfocus was founded in April 2001. Photonfocus is at the forefront of CMOS technology and designs CMOS sensors as well as CMOS cameras. Photonfocus also offers custom and semi-custom design solutions. Photonfocus is rapidly expanding its business with the anticipated shift to CMOS imaging technology. Its main target markets are the machine vision market, security and surveillance markets and the automotive sector.

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