Title :
Evolution of optical structure in image sensors
Author :
Teranishi, N. ; Watanabe, Hiromi ; Ueda, Toshitsugu ; Sengoku, N.
Author_Institution :
Ind. Devices Co., Panasonic Corp., Nagaokakyo, Japan
Abstract :
On-chip optics in image sensors has played an important role for image sensor pixel shrinkage and image sensor progression on the whole. There are three key functions; light collecting, color filtering and new specific functions, all of which are reviewed with their future trends. For light collecting technologies, 1.12 um pixel FSI (front side illumination) with noble lightpipe, which is suitable for large chief ray angle lenses, is explained.
Keywords :
image sensors; lenses; optical filters; optical sensors; FSI; color filtering functions; front side illumination; image sensor; light collecting technology; lightpipe; on-chip optics; optical structure evolution; pixel shrinkage; ray angle lenses; size 1.12 mum; Apertures; Image color analysis; Image sensors; Lenses; Microoptics; Optical filters; System-on-chip;
Conference_Titel :
Electron Devices Meeting (IEDM), 2012 IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-4673-4872-0
Electronic_ISBN :
0163-1918
DOI :
10.1109/IEDM.2012.6479092
