US 12,328,958 B2
Radiographic device
Toru Aoki, Hamamatsu (JP); Katsuyuki Takagi, Hamamatsu (JP); Akifumi Koike, Hamamatsu (JP); Tetsuya Iida, Hamamatsu (JP); and Tomohiko Kosugi, Hamamatsu (JP)
Assigned to NATIONAL UNIVERSITY CORPORATION SHIZOUKA UNIVERSITY, (JP); and ANSEEN INC., (JP)
Appl. No. 18/247,914
Filed by NATIONAL UNIVERSITY CORPORATION SHIZUOKA UNIVERSITY, Shizuoka (JP); and ANSeeN Inc., Shizuoka (JP)
PCT Filed Oct. 6, 2020, PCT No. PCT/JP2020/037867
§ 371(c)(1), (2) Date Apr. 5, 2023,
PCT Pub. No. WO2022/074733, PCT Pub. Date Apr. 14, 2022.
Prior Publication US 2023/0378229 A1, Nov. 23, 2023
Int. Cl. H10F 39/18 (2025.01); G01T 1/24 (2006.01); H10F 39/00 (2025.01); G01T 1/20 (2006.01)
CPC H10F 39/1895 (2025.01) [G01T 1/24 (2013.01); H10F 39/811 (2025.01); G01T 1/2018 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A radiation imaging device comprising:
a radiation detector having an electric charge generation part configured to generate an electric charge corresponding to energy of incident radiation or the number of particles and a reading part configured to output a digital value based on the electric charge; and
a circuit board in which a plurality of radiation detectors are disposed two-dimensionally,
wherein the reading part includes a lead-out substrate in which a plurality of signal processing parts configured to output the digital values are disposed two-dimensionally, and
a plurality of intermediate substrates disposed between the electric charge generation part and the lead-out substrate and including a first main surface configured to face the electric charge generation part and a second main surface configured to face the lead-out substrate,
a plurality of first electrodes electrically connected to the electric charge generation part are disposed on the first main surface,
a plurality of second electrodes electrically connected to each of the signal processing parts and the first electrodes of the lead-out substrate are disposed on the second main surface, and
an arrangement interval of the plurality of second electrodes is narrower than an arrangement interval of the plurality of first electrodes,
the lead-out substrate includes
an input part including third electrodes electrically connected to the second electrodes of the intermediate substrate and in which the intermediate substrate is disposed, and an output part including fourth electrodes electrically connected to the circuit board and provided adjacent to the input part,
an exterior of the intermediate substrate in a plan view is smaller than an exterior of the electric charge generation part in a plan view,
the fourth electrodes are through electrodes configured to reach a rear surface of the lead-out substrate whereon the output part is formed from a main surface of the lead-out substrate whereon the input part is formed,
a plurality of pixel blocks including the plurality of second electrodes are formed on the second main surface, and
an interval of the pixel blocks that are mutually adjacent is larger than the arrangement interval of the second electrodes.