Patent ID: 9508771
Filing Date: 2016-11-29
CPC Classification: H01L

Claim Text:
1. A complementary metal-oxide-semiconductor (CMOS) image sensor, comprising an epitaxial layer having a first conductivity type and having a first surface and a second surface facing each other; a first device isolation layer extending from the first surface to the second surface of the epitaxial layer to define a first pixel region and a second pixel region; a well impurity layer of a second conductivity type formed adjacent to the first surface and formed in the epitaxial layer of each of the first and second pixel regions; a second device isolation layer formed in the well impurity layer in each of the first and second pixel regions to define a first active portion and a second active portion which are spaced apart from each other in each of the first and second pixel regions; first and second transfer gates disposed on the first active portions of the first and second pixel regions, respectively; first and second floating diffusion regions formed in the first active portions and beside the first and second transfer gates, respectively; and a connection line crossing over the first and second pixel regions and being connected to both the first and second floating diffusion regions.