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Agilent Technologies has introduced a 1.3 megapixel single-chip CMOS image sensor with an enhanced (EP) Enhanced Pixel structure that enables cell phones and computer devices to be shot in any lighting environment. A clearer, more vivid color image. The new image sensor is targeted at high-definition megapixel mobile phones, computers, surveillance systems and industrial applications, reducing noise by a factor of ten and further reducing the image quality gap between CMOS and CCD.The sensor uses on-chip system image processing and JPEG compression technology, eliminating the need for space-consuming and power-hungry companion chips, and reduces design complexity and speeds time-to-market. The EP-type pixel structure developed by Agilent Technologies uses a number of innovative designs, such as 3-D pixel electric field trimming technology (1), which effectively solves the three major challenges that all CMOS image sensors must face: one is that the light is weak. The environment reduces noise; the second is to maintain a stable true color effect to improve clarity and color accuracy; the third is to reduce the differences in the manufacturing process to improve pixel stability.
The EP-type pixel structure enables photodiodes to play a huge role in highly symmetrical 3.3-micron dynamic pixel design: it reduces dark current and surface noise by a factor of ten, resulting in richer, brighter color images; It also reduces crosstalk, provides high blue sensitivity and true correlated subsampling; it also includes patent-pending innovative technology that dramatically improves image delay even in dim and video applications It also achieves the best results.
Mr. Li Boat, General Manager of China and Hong Kong, Semiconductor Products Division, Agilent Technologies, Inc. said: "This sensor plays an important role in capturing high quality bright data and providing the most signal, least noise and clearest raw data for the image processor. The newly developed EP-type pixel structure provides the industry's best data capture capability. It has excellent dimming performance and delivers extremely sharp, bright and contrasting color images regardless of the lighting conditions. At 1.3 megapixels, color reproduction, dim performance and image clarity are among the best in the industry. We will further develop higher resolution enhanced pixel structures to bring images to digital cameras."
Mr. Chen Chaoqian, Director of TSMC's Mature Technology Marketing Department, said: "We have a close cooperation with Agilent Technologies in the field of 0.18 micron CMOS image sensors and have achieved stable and high quality production processes. We hope to enhance this in the future (EP The fabrication of pixel structures is used in more megapixel imaging system chips from Agilent Technologies."
ADCC-3960 EP 1.3 megapixel image sensor
The Agilent ADCC-3960 EP is the industry's most advanced system-on-chip with 1.3 megapixels and 1/3 optical format. It incorporates an enhanced image processor, a seventh-generation JPEG compression engine and a CMOS image sensor.
The sensor captures 15 frames per second at the highest SXGA resolution and 30 frames per second in VGA mode. It has a pixel size of 3.3 square microns and a resolution of 1,280 (H) x 1,024 (V). In addition, the ADCC-3960 EP also features a 10-bit A/D converter that provides the following image processing features:
o Realize more than 20 special effects such as “blue peopleâ€, black and white, dark brown, negative sense (1);
o Adjustable compression technology to ensure the highest quality JPEG compression without missing any frame (1);
o Advanced exposure control technology to provide brighter and non-flashing images (1);
o Enhanced automatic correction pixel technology, which is 5 times better than the traditional error correction pixel method (1);
o True color image processing technology, better than automatic white balance technology (1);
o Programmable dual LED and xenon flash synchronous filtering technology (1);
o Adjustable color noise suppression function (1);
o 4x digital zoom for emulating optical zoom (1);
o Eliminate the virtual light function and automatically correct the lens shadow;
o Image sharpening and adjustable tonal correspondence;
o Automatically corrects flicker.
Agilent plans to introduce samples of a 2 megapixel CMOS image sensor with an enhanced pixel structure in early 2006.
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