Imaging device
A imaging device includes an image pickup region composed of a plurality of light-receiving portions ( 2 ) and vertical transfer registers ( 3 ) including a plurality of transfer electrodes containing a transfer electrode ( 8 ) serving as a read electrode as well and other transfer electrode ( 7 ), the vertical transfer registers ( 3 ) being arrayed at every column of light-receiving portions ( 2 ). Each transfer electrode ( 8 ) serving as the read electrode as well disposed within the vertical transfer register ( 3 ) is formed such that it may be separated from the transfer electrode ( 8 ) serving as read electrode as well and other transfer electrode ( 7 ) which are adjoining each other in the horizontal direction. In this imaging device including a plurality of light-receiving portions ( 2 ) regularly arrayed, it is possible to prevent color mixture from occurring between the light-receiving portions (pixels) ( 2 ) which are adjoining each other in the vertical direction.
1. An imaging device comprising:
an image pickup region comprised of a plurality of light-receiving portions, a plurality of vertical transfer channels arranged one per column of light receiving portions, and a plurality of transfer electrodes arranged over the vertical transfer channels and disposed periodically in the column direction for driving charges in the vertical direction through the vertical transfer channel,
wherein said plurality of transfer electrodes include a first and second electrode disposed for each row of light receiving portions, the first transfer electrode also serving as a read electrode for reading charges out of an adjacent respective light receiving portion and into the vertical transfer channel, wherein a shunt wiring is formed in each row for electrically connecting the first electrodes formed in each respective row to provide a signal to the first electrodes, wherein the shunt wiring extends across the row above a conductor for the second electrodes in a region between adjacent pixels without extending over any portion of the pixels;
wherein each shunt wiring has shunt protrusions that extend in the column direction from the shunt wiring, a contact being formed between the shunt protrusions and the respective first electrodes to electrically connect the shunt protrusions to the respective first electrodes;
wherein a width measured in the row direction of the shunt protrusion formed over the vertical transfer channel is less than a width measured in the row direction of the first electrode formed over the vertical transfer channel;
wherein each shunt protrusion has a first maximum width measured in the row direction in a region over the separation between the first transfer electrode and second transfer electrode, and a second maximum width measured in the row direction in a region over the first electrode, and wherein the first maximum width is less than the second maximum width.