Title:
IMAGE SENSOR
Document Type and Number:
Japanese Patent JP3708440
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an image sensor for improving the S/N ratio by suppressing the capacitance between a signal line and a pixel electrode and preventing increase in noise and to obtain a reliable image signal.
SOLUTION: The capacitance between the signal line 4 and the pixel electrode 14 is set to 1/100 or less of pixel capacitance 2a for retaining an electric charge collected by the pixel electrode 14 until the electric charge is read as an image signal, thus preventing crosstalk where the electric charge is superposed to the image signal being read as noise over a dynamic range of approximately 100 required for the image sensor at the minimum even if noise is generated by the capacitance between the signal line 4 and the pixel electrode 14.
More Like This:
Inventors:
Naoshi Nagata
Noguchi Noboru
Yoshihiro Izumi
Noguchi Noboru
Yoshihiro Izumi
Application Number:
JP2001022355A
Publication Date:
October 19, 2005
Filing Date:
January 30, 2001
Export Citation:
Assignee:
Sharp Corporation
International Classes:
G01T1/00; G01T1/24; H01L27/14; H01L27/146; H01L29/786; H01L31/09; H04N1/028; H04N5/335; H04N5/359; H04N5/369; (IPC1-7): H01L27/146; G01T1/00; G01T1/24; H01L27/14; H01L29/786; H01L31/09; H04N1/028; H04N5/335
Domestic Patent References:
| JP11274446A | ||||
| JP10284713A | ||||
| JP11274444A | ||||
| JP2000353808A | ||||
| JP11274524A | ||||
| JP2000323698A |
Attorney, Agent or Firm:
Kenzo Hara International Patent Office
Kenzo Hara
Kenzo Hara