Solid-state imaging device and driving method of solid-state imaging device
View Patent ↗A solid-state imaging device having an electrode for reading a signal charge is provided on one side of a light-receiving sensor portion constituting a pixel; a predetermined voltage signal applied to a light-shielding film formed to cover an image pickup area except the light-receiving sensor portion; a second-conductivity-type semiconductor area formed in the center on the surface of a first-conductivity-type semiconductor area constituting a photo-electric conversion area of the light-receiving sensor portion; and areas containing a lower impurity concentration than that of the second-conductivity-type semiconductor area formed on the surface of the first-conductivity-type semiconductor area at the end on the side of the electrode and at the opposite end on the side of a pixel-separation area.
1. A solid-state imaging device comprising:
(a) a pixel, which pixel comprises (1) a sensor portion effective to generate an electric signal via photoelectric conversion; (2) a non-photoelectric conversion area at a side of said sensor portion; and (3) a light-shielding film that covers the non-photoelectric-conversion area, said light-shielding film comprises a first light-shielding film layer and a second light-shielding film layer;
(b) a grounding device connected to said first light-shielding film layer, said grounding device configured to ground the first light-shielding film layer;
(c) a DC supply device configured to generate a DC voltage, said DC supply device connected to said second light-shielding film layer, and
(d) a charge-coupled device corresponding to the sensor portion and effective to transfer the electric signal,
wherein,
said first light-shielding film layer comprises the opening above said sensor portion and covers the non-photoelectric-conversion area,
said second light-shielding film layer is under the first light-shielding film layer with an insulating film in between, the second light-shielding film layer configured so as to project from one side of the opening of said first light-shielding film layer toward said sensor portion, and
said sensor portion has an offset area between a reading gate and a channel stop layer of an adjacent pixel in said solid-state imaging device.
2. A solid-state imaging device comprising:
(a) a pixel, which pixel comprises (1) a sensor portion effective to generate an electric signal via photoelectric conversion; (2) a non-photoelectric conversion area at a side of said sensor portion; and (3) a light-shielding film covers the non-photoelectric-conversion area, said light-shielding film comprises a first light-shielding film layer and a second light-shielding film layer;
(b) a grounding device connected to said first light-shielding film layer, said grounding device configured to ground the first light-shielding film layer;
(c) a pulse supply device configured to generate pulse voltage, said pulse supply device connected to said second light-shielding film layer, and
(d) a charge-coupled device corresponding to the sensor portion and effective to transfer the electric signal,
wherein,
said first light-shielding film layer comprises the opening above said sensor portion and covers the non-photoelectric-conversion area, a
said second light-shielding film layer is under the first light-shielding film layer with an insulating film in between, the second light-shielding film layer configured so as to project from one side of the opening of said first light-shielding film layer toward said sensor portion, and
said sensor portion has an offset area between a reading gate and a channel stop layer of an adjacent pixel in said solid-state imaging device.
3. A solid-state imaging device according to claim 2 , wherein said second light-shielding film is formed on a side of a reading electrode.