Patent ID: 7049643
Filing Date: 2006-05-23
Classification: H01L

Abstract:
1. An image pickup element having a semiconductor substrate of a conductivity type which includes at least: a light receiving part for transforming a light incident on a light receiving surface into an electric charge; an electric charge readout part for reading out the electric charge which is generated by the light receiving part; and an electric charge transfer part for outputting the electric charge which is read out by the electric charge readout part, the image pickup element comprising: a non-doping region which is provided away from a boundary line on a side of the electric charge readout part, within the light receiving surface of the light receiving part, and which a first impurity for identifying threshold value of the electric charge readout part is not doped into; and a layer made of the first impurity, the layer being provided at least in a doping region, except the non-doping region, within the light receiving surface of the light receiving part, in the electric charge transfer part, and in the electric charge readout part.