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:
Apr. 14, 2026
Filed:
May. 26, 2021
Plessey Semiconductors Ltd, Plymouth, GB;
Andrea Pinos, Plymouth, GB;
Weisin Tan, Plymouth, GB;
Samir Mezouari, Plymouth, GB;
John Lyle Whiteman, Plymouth, GB;
Plessey Semiconductors Ltd, Plymouth Devon, GB;
Abstract
A method of forming an optical device, the method comprising the steps of forming a mesa, the mesa comprising an active layer configured to emit light from a first light emitting surface of the mesa when subjected to an electrical current, the mesa further comprising a second surface opposite the light emitting surface and substantially vertical sidewalls, forming spacers on the mesa sidewalls, the spacers being formed from a first electrically insulating, optically transparent material, and having an internal face facing the mesa sidewalls, and an opposing external face, depositing a first layer of transparent conducting oxide on the light emitting surface of the mesa, the transparent conducting oxide having an internal face facing the second surface of the mesa, and an opposing external face, and depositing a layer of reflective, electrically conducting material over the transparent conducting oxide and external faces of the spacers.