公开(公告)号：US20150256777A1

公开(公告)日：2015-09-10

申请号：US14714366

申请日：2015-05-18

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： MOTONORI ISHII ,  YOSHIYUKI MATSUNAGA ,  YUTAKA HIROSE

IPC: H04N5/363 ,  H04N5/374 ,  H04N5/378

CPC classification number: H04N5/363 ,  H04N5/3742 ,  H04N5/3745 ,  H04N5/378

Abstract: A solid-state imaging apparatus has: a signal readout circuit including a charge storage region connected to a photoelectric conversion region, and a reset transistor connected at one of source and drain to the charge storage region; and a negative feedback circuit that feeds back an output of the signal readout circuit in a negative feedback manner to the other of the source and drain of the reset transistor. A reset operation for discharging a charge stored in the charge storage region includes a first period in which the negative feedback circuit is OFF and a second period which occurs after the first period and in which the negative feedback circuit is ON. In the first period, the reset transistor changes from OFF to ON and then to OFF. In the second period, such a reset transistor control voltage is applied that makes the reset transistor to gradually change to ON.

Abstract translation: 固态成像装置具有：包括连接到光电转换区域的电荷存储区域的信号读出电路和连接到源极和漏极之间的电荷存储区域的复位晶体管; 以及负反馈电路，以负反馈方式将信号读出电路的输出反馈到复位晶体管的源极和漏极中的另一个。 用于对存储在电荷存储区域中的电荷进行放电的复位动作包括负反馈电路为OFF的第一期间和在第一期间后发生的负反馈电路为ON的第二期间。 在第一个周期中，复位晶体管从OFF变为ON，然后变为OFF。 在第二时段中，施加这样的复位晶体管控制电压，使得复位晶体管逐渐变为导通。