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:
Mar. 03, 2026
Filed:
May. 19, 2023
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Hau-Yan Lu, Hsinchu City, TW;
Wei-Kang Liu, Taichung City, TW;
Yingkit Felix Tsui, Cupertino, CA (US);
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Abstract
An edge coupler has a wide end, a narrow end, and a tapering thickness. The narrow end is coupled to a waveguide in a photonic integrated circuit (PIC). The wide end is coupled to an optical transmitter or receiver. The edge coupler thickens by tapering downward into the buried oxide layer of a BOX substrate. An upper surface of the edge coupler may be planar. A pedestal may be formed in the oxide layer so that a laser diode mounted on the pedestal will be vertically aligned to the edge coupler. Alternatively, the pedestal may be formed in a substrate under the oxide layer so that the core of an optical fiber mounted on the pedestal will be vertically aligned to the edge coupler. The pedestal may be in a cavity that facilitates horizontal alignment between the laser diode, optical fiber, or other such device and the edge coupler.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile