Canon Expo 2010 Held in New York
Among the many intriguing technologies Canon unveiled at their once-every-five-years Canon Expo in New York last week was what the company called the world's largest CMOS image sensor, with a chip size measuring 202 x 205 mm.
Because its expanded size enables greater light-gathering capability, Canon claims the sensor is capable of capturing images in one one-hundredth the amount of light required by a professional-model digital SLR camera.
At 202 x 205 mm, the newly developed CMOS sensor is among the largest chips that can be produced from a 12-inch (300 mm) wafer, and is approximately 40 times the size of Canon's largest commercial CMOS sensor. In the past, enlarging the size of the sensor resulted in an increase in the amount of time required between the receiving and transmission of data signals, which posed a challenge to achieving high-speed readout. Canon, however, claims to have solved this problem through an innovative circuit design, making possible the realization of a massive video-compatible CMOS sensor.