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:
Feb. 10, 2026
Filed:
Jul. 17, 2023
Cisco Technology, Inc., San Jose, CA (US);
Long Chen, Marlboro, MA (US);
Qianfan Xu, San Jose, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A photodiode device includes a base layer having a first intermediately doped region and a heavily doped region, a dielectric layer disposed over the base layer, a light absorptive material disposed in the dielectric layer, a first electrode, a coating layer, and a second electrode disposed in the dielectric layer and in communication with the heavily doped region. The light absorptive material has a top and a bottom surface, in which the bottom surface is in contact with the first intermediately doped region. The first electrode includes a side surface and a bottom surface. The coating layer includes an inner surface surrounding the side surface of the first electrode, an outer surface in communication with the dielectric layer, and an end surface in communication with the top surface of the light absorptive material, in which the end surface of the coating layer include a second intermediately doped region.