Patent ID: 6091091
Filing Date: 2000-07-18
Classification: H01L

Abstract:
A charge coupled image device comprising:a plurality of photo-detectors arranged regularly in row and column directions in a surface of a substrate of a first conductivity type;a plurality of charge transferring regions of a second conductivity type formed between the photo-detectors of the row direction;a channel stop layer formed in the surface of the substrate to electrically insulate the photo-detectors from corresponding charge transferring regions; anda reduced doping concentration region formed in the channel stop layer near two adjacent photo-detectors,wherein the reduced doping concentration region is formed in a boundary between the charge transferring region and the channel stop layer to reduce a width of the channel stop layer, andwherein an impurity of the first conductivity type for forming the channel stop layer and an impurity of the second conductivity type for forming the charge transferring region are both implanted in the reduced doping concentration region, so that a potential level of the reduced doping concentration region is lower than a potential level of the channel stop layer.