Solid-state imaging device in which a transfer signal line is held at a constant voltage to prevent crosstalk and electronic device with such solid-state imaging device
View Patent ↗Disclosed is a solid-state imaging device including a photoelectric conversion portion photoelectrically converting incident light into signal charge and accumulate the signal charge, a plurality of signal lines including a transfer signal line to which a transfer signal for reading the signal charge accumulated in the photoelectric conversion portion to a floating diffusion region is input, a driver circuit inputting a plurality of desired signals into the plurality of signal lines including the transfer signal line, and a terminal circuit connected to a side opposite to a side of the transfer signal line where the driver circuit is connected and to which a control signal for securing the transfer signal line at a constant voltage is input before a desired signal of the plurality of desired signals with respect to a signal line adjacent to the transfer signal line of the plurality of signal lines is input to the signal line adjacent to the transfer signal line.
1. A solid-state imaging device comprising:
a photoelectric conversion portion configured to photoelectrically convert incident light into signal charge and accumulate the signal charge;
a plurality of signal lines including a transfer signal line to which a transfer signal for reading the signal charge accumulated in the photoelectric conversion portion to a floating diffusion region is input;
a driver circuit configured to input a plurality of desired signals into the plurality of signal lines, including the transfer signal line; and
a terminal circuit connected to a side opposite to a side of the transfer signal line where the driver circuit is connected and to which a control signal for securing the transfer signal line at a constant voltage is input before a desired signal of the plurality of desired signals with respect to a signal line adjacent to the transfer signal line of the plurality of signal lines is input to the signal line adjacent to the transfer signal line.
2. A solid-state imaging device according to claim 1 , wherein the control signal is one of a signal synchronized with the desired signal input to the signal line adjacent to the transfer signal line, an inverted signal of the desired signal input to the signal line adjacent to the transfer signal line, and a delayed signal of the desired signal input to the signal line adjacent to the transfer signal line.
3. An electric device comprising:
an optical system;
a solid-state imaging device including (a) a photoelectric conversion portion configured to photoelectrically convert light incident through the optical system into signal charge and accumulate the signal charge, (b) signal lines including a transfer signal line to which a transfer signal for reading the signal charge accumulated in the photoelectric conversion portion to a floating diffusion region is input, (c) a driver circuit configured to input desired signals into the signal lines, including the transfer signal line, and (d) a terminal circuit connected to a side opposite to a side of the transfer signal line where the driver circuit is connected, and to which a control signal for securing the transfer signal line at a constant voltage is input before a desired signal of the plurality of desired signals is input to a signal line adjacent to the transfer signal line of the plurality of signal lines; and
a signal processing circuit configured to carry out processing of the signals output from the solid-state imaging device.