Image sensors are increasingly being used in many applications spreading from consumer electronics, security, industrial control, automotive, and medical imaging. In year 2004, more than 360 million sets of various image sensors were sold, and the demand for image sensors is continuously climbing. In all of these applications for image sensor, camera mobile phone is the rapidest growing market.
Comparisons between CCD and CMOS CCD (Charge Coupled Device) and CMOS (Complementary Metal Oxide Semiconductor) are the most common image sensor technologies. Both CCD and CMOS sensors are constructed from silicon manufacturing technology. Basically, they both convert incident photon into electronic charge by the same photo-electronic conversion process. Over the last few years, CMOS sensors have become increasingly popular.
Advantages of CMOS The advantages of CMOS technology over CCD technology are mainly due to the fact that nowadays CMOS represents a standard for microelectronic fabrication and thus allows for the reduction of cost in volume production. Moreover it allows for the integration, on the same silicon die, of both the optical transducer and the readout and processing electronics. Because of the low power consumption of CMOS technology, they could be used for a wide range of applications, especially in portable products, such as camera phones.
ChipMOS' Solution for Image Sensor ChipMOS TECHNOLOGIES (Bermuda) LTD. is one of the world's leading providers of testing and packaging solutions. To meet the demand of image sensor customers, ChipMOS offers the wafer testing solutions for image sensor. ChipMOS is also developing the innovative image sensor packaging solutions to customers, including CSP, wafer level package and chip on film (COF).