SOLID-STATE IMAGING APPARATUS

• Main Author: MATSUURA TOMOHIRO
• Format: Patent
• Language: English; Japanese
• Published: 16.03.2017
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION

PROBLEM TO BE SOLVED: To provide a solid-state imaging apparatus capable of reducing a dark current component included in the signal charge of a photoelectric conversion region.SOLUTION: The solid-state imaging apparatus includes a transfer transistor Td, a reset transistor Tc, a potential generation part 933, and a first voltage output circuit 931. The transfer transistor Td includes a photoelectric conversion region PD and a floating diffusion region FD. The reset transistor Tc includes the floating diffusion region FD and an impurity region. The impurity region is electrically connected to a power supply line. The potential generation part 933 generates a second voltage which is a voltage between a first voltage and a ground voltage. The first voltage output circuit 931 outputs the first voltage which is the voltage based on a power supply voltage or the second voltage to the gate of the reset transistor Tc.SELECTED DRAWING: Figure 3 【課題】光電変換領域の信号電荷に含まれる暗電流成分を低減できる固体撮像装置を提供する。【解決手段】固体撮像装置は、転送トランジスタＴｄとリセットトランジスタＴｃと電位生成部９３３と第１電圧出力回路９３１とを有する。転送トランジスタＴｄは、光電変換領域ＰＤ及び浮遊拡散領域ＦＤを含み、リセットトランジスタＴｃは、浮遊拡散領域ＦＤ及び不純物領域を含む。不純物領域は、電源線に電気的に接続されている。電位生成部９３３は、第１電圧と接地電圧との間の電圧である第２電圧を生成する。第１電圧出力回路９３１は、電源電圧に基づく電圧である第１電圧、又は前記第２電圧をリセットトランジスタＴｃのゲートに出力する。【選択図】図３