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:
Jun. 16, 2026
Filed:
Nov. 07, 2023
Stmicroelectronics S.r.l., Agrate Brianza, IT;
Giuseppe D'arrigo, San Giovanni la Punta, IT;
Antonella Sciuto, San Giovanni la Punta, IT;
Domenico Pierpaolo Mello, Catania, IT;
Pietro Paolo Barbarino, Belpasso, IT;
Salvatore Coffa, Milan, IT;
Abstract
A light-emitter device comprising: a body of solid-state material; and a P-N junction in the body, including: a cathode region, having N-type conductivity; an anode region, having P-type conductivity, extending in direct contact with the cathode region and defining a light-emitting surface; and a depletion region around an interface between the anode and the cathode regions. The light-emitting surface has at least one indentation that extends towards the depletion region. The depletion region has a peak defectiveness area, housing irregularities in crystal lattice, in correspondence of said at least one indentation. The defectiveness area, which includes point defects, line defects, bulk defects, etc., is generated as a direct consequence of the formation of the indentation by an indenter or nanoindenter system. In the defectiveness area color centers are generated.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile