Charge-coupled device having a reduced width for barrier sections in a transfer channel

摘要

A charge-coupled device (CCD) includes first-level transfer electrodes and second-level transfer electrodes alternately arranged along a transfer channel, wherein charge storage sections underlying the first-level transfer electrodes have a larger width than barrier sections underlying the second-level transfer electrodes. First and second interconnect lines supply two-phase driving signals to the transfer electrodes. Contact plugs connecting the first interconnect line to the transfer electrodes and contact plugs connecting the second interconnect line are located at opposite sides with respect to the center line of the transfer channel.