Patent ID: 6720593
Filing Date: 2004-04-13
Classification: H01L

Abstract:
A charge-coupled device (CCD) comprising:a semiconductor substrate having therein a transfer channel on a surface region of said semiconductor substrate; a plurality of first transfer electrodes and a plurality of second transfer electrodes overlying said semiconductor substrate and alternately arranged along said transfer channel; and first and second interconnect lines for supplying two-phase driving signals to said first and second transfer electrodes to transfer electric charge along said transfer channel, wherein: said transfer channel includes a plurality of first diffused regions each underlying a corresponding one of said first transfer electrodes and a plurality second diffused regions each underlying a corresponding one of said second transfer electrodes, said first diffused regions constituting charge storage sections and said second diffused regions constituting barrier sections during transferring the electric charge; and each of said charge storage sections has a width larger than a width of each of said barrier sections.