Title :
A low smear structure for 2 M-pixel CCD image sensors
Author :
Negishi, Michio ; Yamada, Hiroyuki ; Harada, Koichi ; Yamagishi, Machio ; Yonemoto, Kazuya
Author_Institution :
Sony Corp., Kanagawa, Japan
fDate :
8/1/1991 12:00:00 AM
Abstract :
The authors have developed a novel smear suppression cell structure, built with a second Al shunt process, for 1-inch optical format FIT-CCD (frame interline transfer charge-coupled device) image sensors with 2 million pixels. The first Al layer works as a photo-shield and the second one is used for V-register drive pulse wiring. With this structure, one can reduce smear levels to less than -110 dB. Moreover, one can achieve levels below -120 dB with an on-chip microlens
Keywords :
CCD image sensors; aluminium; 1 inch; 2 Mpixels; Al shunt process; CCD image sensors; V-register drive pulse wiring; charge-coupled device; frame interline transfer; on-chip microlens; optical format FIT-CCD; photo-shield; smear suppression cell structure; Cameras; Charge-coupled image sensors; Circuits; Clocks; Frequency; HDTV; Image sensors; Optical noise; Optical sensors; Pixel;
Journal_Title :
Consumer Electronics, IEEE Transactions on
