The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 30, 2024

Filed:

May. 14, 2019
Applicant:

Prismatic Sensors Ab, Stockholm, SE;

Inventors:

Mietek Bakowski Holtryd, Stillingsön, SE;

Mats Danielsson, Täby, SE;

Cheng Xu, Täby, SE;

Assignee:

Prismatic Sensors AB, Stockholm, SE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/146 (2006.01); G01T 1/24 (2006.01);
U.S. Cl.
CPC ...
H01L 27/14658 (2013.01); G01T 1/241 (2013.01); H01L 27/14601 (2013.01); H01L 27/14683 (2013.01); G01N 2223/504 (2013.01); H01L 27/14603 (2013.01);
Abstract

Disclosed is an X-ray sensor having an active detector region including detector diodes on its surface. The X-ray sensor further includes a junction termination surrounding the surface region including the detector diodes. The junction termination includes a guard arranged closest to the end of the surface region, a field stop outside the guard and at least two field limiting rings, FLRs arranged between the guard and the field stop. A first FLR is arranged at a distance Δfrom the guard selected from the interval [4 μm; 12 μm], a second FLR is arranged at a distance Δfrom the first FLR selected from the interval [6.5 μm; 14 μm], and wherein the distance Δis larger than the distance Δ. The proposed technology also provides a method for constructing such an X-ray sensor and an X-ray imaging system including an X-ray detector system that includes such X-ray sensor.


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