Title:
固体撮像装置
Document Type and Number:
Japanese Patent JP3571226
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To expand operation margin and to reduce power supply voltage by having a transistor that disconnects an unselected row reset control line from a vertical scan circuit at the time of resetting a cell of a selected row and coupling capacity which sets a reset control line of an unselected row to electric potential that is lower than the potential of a drain line. SOLUTION: An isolation transistor 16 is made conductive, a terminal electrode side connected to a reset control line 12 of a coupling capacity 15 is charged to 0 V that is the same as the reset control line 12, an unselected row is made conductive, and the reset control line 12 of the unselected row is disconnected from a vertical scan circuit 11 and is subjected to capacitive coupling to a drain line 7 by the coupling capacity 15. Next, after performing an injection/discharge operation, the drain line 7 is made a high level, a reset transistor 3 is made nonconductive, a connection control transistor is made conductive, the unselected row is made nonconductive, the capacitive coupling is released and the injection/discharge operation of a selected row is finished.
Inventors:
Keiji Mabuchi
Application Number:
JP25703698A
Publication Date:
September 29, 2004
Filing Date:
September 10, 1998
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
H01L27/148; H04N5/335; H04N5/357; H04N5/369; H04N5/374; H04N5/3745; (IPC1-7): H04N5/335
Domestic Patent References:
| JP9252434A | ||||
| JP10093066A |
Attorney, Agent or Firm:
Hidekazu Miyoshi
Yasuo Miyoshi
Iwa Saki Kokuni
Kawamata Sumio
Yasuo Miyoshi
Iwa Saki Kokuni
Kawamata Sumio