Title :
A 1/2-in 380 k-pixel progressive scan CCD image sensor
Author :
Kobayashi, A. ; Naito, Y. ; Ishigami, T. ; Izumi, A. ; Hanagata, T. ; Nakashima, K.
Author_Institution :
Sony Corp., Kanagawa, Japan
Abstract :
A progressive-scan interline-transfer CCD (charge coupled device) image sensor (PS-CCD) that can read out vertical signal packets without mixing is presented. It can solve ill-matched resolutions. This 380-k-pixel PS-CCD provides a vertical resolution of 480 TV lines. The schematic of this device is shown. The image area is 6.45 (H) mm*4.84 (V) mm. The number of pixels without optical blacks is 768 (H) *494 (V), and the size is 8.4 (H) mu m*9.8 (V) mu m. These specifications are suitable for 1/2-in lens format. To realize a PS-CCD, three techniques are used: three-phase three-level electrode vertical CCD, dual horizontal CCD with a compound channel, and dual-channel output. The characteristics of the image sensor are shown. 146-mV/1* sensitivity is obtained from one pixel for light with a color temperature of 3200 K and a saturation voltage of 600 mV. Smear is reduced to -86 dB. Horizontal resolution is 570 TV lines.<>
Keywords :
CCD image sensors; 480 TV lines; 570 TV lines; CCD image sensor; color temperature; compound channel; dual horizontal CCD; dual-channel output; horizontal resolution; ill-matched resolutions; image area; progressive-scan interline-transfer CCD; saturation voltage; smear; three-phase three-level electrode vertical CCD; vertical signal packets; Charge coupled devices; Charge-coupled image sensors; Electrodes; Image sensors; Lenses; Optical mixing; Optical saturation; Optical sensors; Signal resolution; TV;
Conference_Titel :
Solid-State Circuits Conference, 1993. Digest of Technical Papers. 40th ISSCC., 1993 IEEE International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-0987-1
DOI :
10.1109/ISSCC.1993.280052
