Patent ID: 7656446
Filing Date: 2010-02-02
Classification: H01L,H04N

Abstract:
1. A CCD color solid-state image pickup device comprising: a plurality of light-receiving sections arranged in an array on the surface of a semiconductor substrate; and a vertical transfer path by way of which signal electric charges stored in electric charge storage sections of the respective light-receiving sections are read and transferred to a horizontal transfer path, wherein the electric charge storage section of each of the light-receiving sections has a plurality of electric charge storage layers which are formed in a silicon layer and are provided in a depthwise direction of the semiconductor substrate with potential barriers interposed therebetween; and signal electric charges stored in the respective electric charge storage layers are read independently to the vertical transfer path, wherein each of the plurality of electric charge storage layers is different in the depthwise direction from the others of the plurality of electric charge storage layers, and wherein a first light-receiving section for storing blue (B) and green (G) signal electric charges and a second light-receiving section for storing green (G) and red (R) signal electric charges are alternately provided as the light-receiving sections on the surface of the semiconductor substrate; the first light-receiving section is provided with a first electric charge storage layer for storing blue (B) signal electric charges and a second electric charge storage layer for storing green (G) signal electric charges; and the second light-receiving section is provided with the second electric charge storage layer for storing green (G) signal electric charges and a third electric charge storage layer for storing red (R) signal electric charges.