Radiographic image capture device

Patent metadata

Field	Value
Publication number	US-2016178757-A1
Application number	US-201615058940-A
Country	US
Kind code	A1
Filing date	Mar 2, 2016
Priority date	Jul 27, 2012
Publication date	Jun 23, 2016
Grant date	—

Abstract

A radiographic image capture device of the present invention includes: a radiation detection panel including a photoelectric conversion element; a signal processing board that performs signal processing on electrical signals obtained by the radiation detection panel; a support member that is provided between the radiation detection panel and the signal processing board; a flexible substrate that includes a base film, wiring lines including a low wiring density region and a high wiring density region, and electronic component(s) that are electrically connected to the wiring lines; a housing that internally houses the radiation detection panel, the signal processing board, the support member and the flexible substrate; and a fixing member that fixes the low wiring density region of the flexible substrate to the at least one of the support member or the housing.

First claim

What is claimed is:

1 . A radiographic image capture device comprising:
a radiation detection panel comprising a photoelectric conversion element that converts radiation into an electrical signal; a signal processing board that is disposed facing towards the radiation detection panel and that performs signal processing on electrical signals obtained by the radiation detection panel; a support member that is provided between the radiation detection panel and the signal processing board to support the radiation detection panel and the signal processing board; a flexible substrate that comprises wiring lines disposed on a base film provided between the radiation detection panel and the signal processing board and including a low wiring density region and a high wiring density region whose wiring density is higher than that of the low wiring density region, and at least one electronic component that are electrically connected to the wiring lines; a housing that internally houses the radiation detection panel, the signal processing board, the support member and the flexible substrate; and a fixing member that is disposed between the low wiring density region of the flexible substrate and the support member or the housing or both, and that fixes the low wiring density region of the flexible substrate to the support member or the housing or both.

2 . The radiographic image capture device of claim 1 , wherein:
the electronic components comprise a first electronic component, and a second electronic component and a third electronic component that are smaller in size than the first electronic component; the first electronic component, the second electronic component and the third electronic component are arrayed in this sequence along an extension direction of the wiring lines, such that the high wiring density region is between the first electronic component and the second electronic component and the low wiring density region is between the second electronic component and the third electronic component; and the fixing member is provided at least between the second electronic component and the third electronic component.

3 . The radiographic image capture device of claim 1 , wherein the fixing member is provided contiguously from the low wiring density region of the flexible substrate to the region where the electronic component is mounted.

4 . The radiographic image capture device of claim 1 , wherein the fixing member comprises a first fixing member that is fixed to the support member and a second fixing member that is fixed to the housing.

5 . The radiographic image capture device of claim 4 , wherein the fixing member is configured from at least one material selected from the group consisting of a silicone gel, a urethane gel and an acrylic gel.

6 . The radiographic image capture device of claim 1 , wherein the electronic component is provided on the flexible substrate in a region that overlaps with a surface of the support member at a signal processing board side.

7 . The radiographic image capture device of claim 2 , wherein:
the first electronic component has a function to perform analogue-to-digital signal processing on the electrical signals from the radiation detection panel to convert analogue signals into digital signals; the second electronic component and the third electronic component both have a function to reduce noise in power supplied to the first electronic component; and power supply lines that connect between the first electronic component and the third electronic component are disposed in the low wiring density region between the second electronic component and the third electronic component.

8 . The radiographic image capture device of claim 2 , wherein:
the first electronic component comprises a plurality of sample-and-hold circuits that are connected to each output signal line of the radiation detection panel, a multiplexer with an input that is connected to outputs of the plurality of sample-and-hold circuits, and an analogue-to-digital converter with an input connected to an output of the multiplexer and an output connected to the signal processing board; and the second electronic component and the third electronic component are both condensers electrically connected in parallel across the power supply that supplies the first electronic component.

Assignees

• Fujifilm Corp

Inventors

• Watano Hirotaka

Classifications

• H10W70/688

  Flexible insulating substrates · CPC title

• H10W70/60

  Insulating or insulated package substrates; Interposers; Redistribution layers (leadframes H10W70/40) · CPC title

• H10W42/121

  protecting against mechanical damage (H10W76/00, H10W74/00 take precedence) · CPC title

• H10F77/93

  Interconnections · CPC title

• G01T1/16 Primary

  Measuring radiation intensity (G01T1/29 takes precedence {; self-powered detectors G01T3/006; using an ionisation chamber filled with a liquid or solid, e.g. frozen liquid, dielectric G01T3/008}) · CPC title