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:
Jul. 14, 2020
Filed:
Feb. 19, 2019
Stmicroelectronics S.r.l., Agrate Brianza, IT;
Luca Maggi, Garlate, IT;
Piero Orlandi, Arcevia, IT;
STMICROELECTRONICS S.R.L., Agrate Brianza, IT;
Abstract
An optical integrated circuit device includes a semiconductor substrate and a first waveguide made of a first material and disposed over the semiconductor substrate. The first waveguide includes a parallel region and a tapered region. The optical integrated circuit device further includes a first cladding structure disposed over and surrounding the parallel region of the first waveguide, a first extension made of the first material and disposed over the semiconductor substrate, and an electrostatic discharge (ESD) protection structure electrically coupled to the first extension. The first extension physically contacts the parallel region of the first waveguide. The first extension includes a first portion within the first cladding structure and a second portion outside the first cladding structure.