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:
Jan. 14, 2025
Filed:
Mar. 02, 2022
National Technology & Engineering Solutions of Sandia, Llc, Albuquerque, NM (US);
Erik J. Skogen, Tijeras, NM (US);
Gregory A. Vawter, Corrales, NM (US);
National Technology & Engineering Solutions of Sandia, LLC, Albuquerque, NM (US);
Abstract
Monochromatic photosensitive devices (MPDs) having series connected photosensitive diode cell arrays in two configurations are disclosed. The MPDs employ a protection diode to bypass either one or multiple photosensitive diodes in each photosensitive diode cell should a photosensitive diode fail as an open circuit or become blocked from the monochromatic light. The protection diode is vertically (epitaxial growth direction) integrated with a photosensitive diode layer structure during epitaxial growth, thereby permitting monolithic fabrication of the one or multiple photosensitive diode cells. The bulk of the one or multiple photosensitive diodes are formed of a material having a bandgap corresponding to the wavelength of the monochromatic light, while the protection diodes are formed of a material having a bandgap greater than the wavelength of the monochromatic light. The monochromatic light passes through the protection diode before being absorbed by the one or multiple photosensitive diodes.