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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.

Patent No.:

US 10147749 B1

PDFFull Text
Date of Patent:
Dec. 04, 2018

Filed:

Apr. 12, 2016

Reduction of tft instability in digital x-ray detectors

Applicants:

Carestream Health, Inc., Rochester, NY (US);

Kyung Hee University, Seoul, KR;

Inventors:

Ravi K. Mruthyunjaya, Penfield, NY (US);

Timothy J. Tredwell, Fairport, NY (US);

Jin Jang, Seoul, KR;

Mallory Mativenga, Seoul, KR;

Jae Gwang Um, Seoul, KR;

Mohammad Masum Billah, Seoul, KR;

Assignee:

Other;

Attorney:
Primary Examiner:

David Porta

Assistant Examiner:

Gisselle Gutierrez

Int. Cl.
CPC ...
H01L 27/146 (2006.01); G01T 1/24 (2006.01); H01L 29/49 (2006.01); H01L 29/66 (2006.01); H01L 29/786 (2006.01); H01L 21/02 (2006.01); H01L 21/443 (2006.01); H01L 27/12 (2006.01);
U.S. Cl.
CPC ...
H01L 27/14616 (2013.01); G01T 1/247 (2013.01); H01L 27/14612 (2013.01); H01L 27/14618 (2013.01); H01L 27/14658 (2013.01); H01L 27/14663 (2013.01); H01L 27/14692 (2013.01); H01L 27/14694 (2013.01); H01L 29/4908 (2013.01); H01L 29/66969 (2013.01); H01L 29/78693 (2013.01); H01L 21/02164 (2013.01); H01L 21/02274 (2013.01); H01L 21/02565 (2013.01); H01L 21/02592 (2013.01); H01L 21/02631 (2013.01); H01L 21/443 (2013.01); H01L 27/1225 (2013.01);
Abstract

A digital radiographic detector uses an IGZO active layer in the switching element for each imaging pixel in a two-dimensional array of imaging pixels. Each imaging pixel has a photo-sensitive element and the switching element. Read-out circuits electrically connected to the two-dimensional array generate a radiographic image by reading out image data by switching on and off the switching elements. The IGZO active layer may be formed having a thickness less than about 7 nm.

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