Sensor board for a detector module

Patent metadata

Field	Value
Publication number	US-10107920-B2
Application number	US-201514949911-A
Country	US
Kind code	B2
Filing date	Nov 24, 2015
Priority date	Dec 10, 2014
Publication date	Oct 23, 2018
Grant date	Oct 23, 2018

Abstract

A sensor board for a detector module is disclosed. It includes, in a stack construction, at least one reader unit and a sensor layer arranged spaced from the reader unit in the direction of the stack. A gap formed by the spacing between the sensor layer and the reader unit is filled with a cured filling material such that at least one edge region of the sensor layer is free of the filling material. Furthermore, a method is disclosed for manufacturing a corresponding sensor board, and a detector module is disclosed for an X-ray detector having a number of sensor boards which are arranged to be mutually adjacent on a module carrier.

First claim

What is claimed is:

1. A sensor board for a detector module, in a stack construction, comprising:
at least one reader unit; and
a plurality of sensor layers, each of the plurality of sensor layers arranged spaced from a respective at least one reader unit in a direction of the stack of the stack construction, the sensor layer including a first surface and an opposing second surface;
a filling material on an entirety of one of the first surface or the opposing second surface, and
a carrier in the stack construction;
wherein the each sensor layer and the respective at least one reader unit are separated from each other by a first spacing, the first spacing including the filling material such that at least one edge surface of the sensor layer is free of the filling material;
wherein respective edge surfaces of each of the plurality of sensor layers are separated from each other by a second spacing, the second spacing being free of the filling material; and
wherein the carrier includes a groove that is free of filling material and is configured to prevent the filling material from entering gaps between adjacent reader units of hybrids on the carrier.

2. The sensor board of claim 1 , wherein the first spacing is filled with the filling material such that a respective edge region of the at least one reader unit is free of the filling material.

3. The sensor board of claim 2 , wherein surfaces delimiting the filled first spacing between the at least one reader unit and the sensor layer are completely wetted by the filling material.

4. The sensor board of claim 1 , wherein the sensor layer includes in at least one edge region, in a longitudinal direction transverse to the stack direction, a dimension jutting beyond the at least one reader unit.

5. The sensor board of claim 4 , wherein the dimension of the sensor layer jutting beyond the at least one reader unit is 50 μm to 100 μm.

6. The sensor board of claim 4 , wherein surfaces delimiting the filled first spacing between the at least one reader unit and the sensor layer are completely wetted by the filling material.

7. The sensor board of claim 6 , wherein the dimension of the sensor layer jutting beyond the at least one reader unit is between 50 μm to 100 μm.

8. The sensor board of claim 1 , wherein surfaces delimiting the filled first spacing between the at least one reader unit and the sensor layer are completely wetted by the filling material.

9. The sensor board of claim 1 ,
wherein the at least one reader unit is mounted on the carrier in the stack construction.

10. The sensor board of claim 9 , wherein the at least one reader unit and the carrier are arranged at a third spacing from one another in the stack direction.

11. The sensor board of claim 10 , wherein the third spacing between the at least one reader unit and the carrier is filled with the filling material such that at least one edge region of the carrier is free of the filling material.

12. The sensor board of claim 10 , wherein the third spacing between the at least one reader unit and the carrier is filled with the filling material such that at least one edge region of the at least one reader unit is free of the filling material.

13. The sensor board of claim 10 , wherein surfaces delimiting the third spacing between the at least one reader unit and the carrier are completely wetted by the filling material.

14. The sensor board of claim 9 , wherein the carrier has, in a longitudinal direction transverse to the stack direction and in at least one edge region, a dimension jutting beyond the at least one reader unit.

15. The sensor board of claim 14 , wherein the dimension of the carrier jutting beyond the at least one reader unit is between 0 μm and 5000 μm.

16. The sensor board of claim 15 , wherein the dimension of the carrier jutting beyond the at least one reader unit is between 50 μm to 500 μm.

17. The sensor board of claim 14 , wherein the at least one reader unit includes at least two reader units and wherein a fourth spacing between the at least two reader units arranged on the carrier adjacent to one another in the longitudinal direction is between 100 μm and 1000 μm.

18. The sensor board of claim 17 , wherein the at least one reader unit includes at least two reader units and wherein a spacing between two reader units arranged on a carrier adjacent to one another in the longitudinal direction is between 200 μm and 500 μm.

19. A detector module for an X-ray detector comprising:
a plurality of sensor boards arranged to be mutually adjacent on a module carrier, each of the sensor boards being the sensor board of claim 14 .

20. The sensor board of claim 9 , wherein the carrier is provided with an at least partial coating.

21. A detector module for an X-ray detector comprising:
a plurality of sensor boards arranged to be mutually adjacent on a module carrier, each of the sensor boards being the sensor board of claim 9 .

22. The sensor board of claim 1 , wherein at least one of the at least one reader unit and the sensor layer is provided, in at least one edge region, with a coating.

23. A detector module for an X-ray detector comprising:
a plurality of sensor boards arranged to be mutually adjacent on a module carrier, each of the sensor boards being the sensor board of claim 1 .

24. The sensor board of claim 1 , wherein the at least one reader unit and one of the plurality of sensor layers forms a hybrid and facing edge surfaces of each reader unit of respective hybrids are separated from each other by a fourth spacing, the fourth spacing being free of the filling material.

25. A method for manufacturing a sensor board for a detector module, comprising:
filling a first spacing, between one of a plurality of sensor layers and at least one respective reader unit of the sensor board, with a flowable filling material that wets an entirety of surfaces delimiting the first spacing such that a respective edge surface of the sensor layer remains free of the flowable filling material, each of the plurality of sensor layers having a first sensor surface and an opposing second sensor surface, the first and second surfaces delimiting the first spacing including the first sensor surface and a reader surface;
applying the filling material to one of the first sensor surface and the second sensor surface; and
arranging the at least one reader unit in a stack construction at a spacing therefrom on a carrier, a third spacing defined by a carrier surface and one of a first reader surface and a second reader surface;
wherein a respective edge surface of each of the plurality of sensor layers is separated from an edge surface of an adjoining sensor layer by a second spacing, the second spacing being free of the filling material; and
wherein the carrier includes a groove that is configured to prevent the filling material from entering gaps between adjacent reader units of hybrids on the carrier.

26. The method of claim 25 , further comprising:
filling the third spacing with a flowable filling material that wets surfaces delimiting the third spacing such that at least one edge surface of the carrier remains free of the flowable filling material.

27. The method of claim 26 , further comprising:
filling both the first spacing and the third spacing at the same time with the flowable filling material.

28. The method of claim 27 , wherein the flow

Assignees

• Siemens Ag

Inventors

• Danzer Ludwig
• Geyer Harald
• Labayen De Inza Miguel
• Wrege Jan

Classifications

• A61B6/03

  Computed tomography [CT] · CPC title

• H01L31/115

  Electricity · mapped topic

• G01T1/00 Primary

  Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation (G01T3/00, G01T5/00 take precedence) · CPC title

• H01L31/0203

  Electricity · mapped topic

• A61B6/4208

  characterised by using a particular type of detector · CPC title