公开(公告)号：US20240136385A1

公开(公告)日：2024-04-25

申请号：US18488873

申请日：2023-10-16

Applicant: CANON KABUSHIKI KAISHA

Inventor： MASAO INA ,  MASATO OFUJI ,  TAKAMASA ISHII

IPC: H01L27/146 ,  H04N25/30 ,  H04N25/677

CPC classification number: H01L27/14663 ,  H01L27/14603 ,  H01L27/14612 ,  H01L27/14623 ,  H04N25/30 ,  H04N25/677

Abstract: An apparatus includes: a first pixel for acquiring an image, the first pixel including a first conversion element and a first thin-film transistor and connected to a first signal line; and a second pixel for correcting an output of the first pixel, the second pixel including an element and a second thin-film transistor and connected to a second signal line, in which a ratio between a plurality of capacitances related to the first signal line and a ratio between a plurality of capacitances related to the second signal line are approximately equivalent.

公开(公告)号：US20240234474A9

公开(公告)日：2024-07-11

申请号：US18488873

申请日：2023-10-17

Applicant: CANON KABUSHIKI KAISHA

Inventor： MASAO INA ,  MASATO OFUJI ,  TAKAMASA ISHII

IPC: H01L27/146 ,  H04N25/30 ,  H04N25/677

CPC classification number: H01L27/14663 ,  H01L27/14603 ,  H01L27/14612 ,  H01L27/14623 ,  H04N25/30 ,  H04N25/677

Abstract: An apparatus includes: a first pixel for acquiring an image, the first pixel including a first conversion element and a first thin-film transistor and connected to a first signal line; and a second pixel for correcting an output of the first pixel, the second pixel including an element and a second thin-film transistor and connected to a second signal line, in which a ratio between a plurality of capacitances related to the first signal line and a ratio between a plurality of capacitances related to the second signal line are approximately equivalent.

公开(公告)号：US20230258834A1

公开(公告)日：2023-08-17

申请号：US18163432

申请日：2023-02-02

Applicant: CANON KABUSHIKI KAISHA

Inventor： MASAO INA ,  TAKAMASA ISHII ,  MASATO OFUJI ,  KATSURO TAKENAKA

IPC: G01T3/06

CPC classification number: G01T3/06

Abstract: A sensor board comprising a substrate comprising a pixel region where pixels are arranged on a first surface of two surfaces, a scintillator arranged on one of the first surface and a second surface of the two surfaces and a light shielding member arranged on the surface on which the scintillator is arranged, is provided. The pixel region comprises a first region where a signal for radiation image is generated and a second region where a signal for correcting a signal output from the first region is generated. The scintillator is arranged to overlap the first region but not to overlap the second region. The light shielding member is arranged to cover the scintillator and overlap the second region. A portion of the light shielding member overlapping the second region is bonded to the surface on which the scintillator is arranged.

公开(公告)号：US20230204803A1

公开(公告)日：2023-06-29

申请号：US18068420

申请日：2022-12-19

Applicant: CANON KABUSHIKI KAISHA

Inventor： MASATO OFUJI ,  KATSURO TAKENAKA ,  MASAO INA ,  TAKAMASA ISHII

IPC: G01T1/24

CPC classification number: G01T1/241

Abstract: A method of operating a radiation imaging apparatus including a sensor substrate which includes a plurality of pixels arranged in a matrix, each pixel including a conversion element configured to convert radiation or light into an electric charge and accumulate the electric charge and a switch element. The method includes, supplying a first driving potential to set the switch element in a non-conductive state, changing a bias potential supplied to a second terminal of the conversion element to remain a charge in the conversion element, supplying a second driving potential to the switch element to readout a remaining charge, and calculating a threshold voltage of the switch element based on the remaining charge.