A CMOS imager with two adjacent pixel active area regions without the presence of an intervening trench isolation region that typically separates two adjacent pixels and their associated photodiodes is provided. The shared active area region isolates the two adjacent photodiodes and provides good substrate...http://www.google.com/patents/US7009227?utm_source=gb-gplus-sharePatent US7009227 - Photodiode structure and image pixel structure
