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.:
Date of Patent:
Oct. 18, 2022
Filed:
Mar. 31, 2021
Commissariat a L'energie Atomique ET Aux Energies Alternatives, Paris, FR;
Clément Lobre, Grenoble, FR;
Florent Rochette, Grenoble, FR;
Abstract
Photo-detection device () including a semiconductor substrate () made of CdHgTe, with an N-doped region (), a P-doped region (), and a concentrated casing () only located in the P-doped region and having an average cadmium concentration greater than the average cadmium concentration in the N-doped region. According to the invention, the concentrated casing () has a cadmium concentration gradient, defining therein at least one intermediate gap zone () and at least one high gap zone (), and the intermediate gap zone () is in direct physical contact with an electrical contact block (). A significant reduction in the dark current and an optimal charge carrier collection are thus combined.