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:
May. 13, 2025
Filed:
Jun. 08, 2023
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Chan-Hong Chern, Palo Alto, CA (US);
Chih-Chang Lin, San Jose, CA (US);
Chewn-Pu Jou, Hsinchu, TW;
Chih-Tsung Shih, Hsinchu, TW;
Feng-Wei Kuo, Hsinchu County, TW;
Lan-Chou Cho, Hsinchu, TW;
Min-Hsiang Hsu, Hsinchu, TW;
Weiwei Song, San Jose, CA (US);
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Abstract
An optical device for coupling light propagating between a waveguide and an optical transmission component is provided. The optical device includes a taper portion and a grating portion. The taper portion is disposed between the grating portion and the waveguide. The grating portion includes rows of grating patterns. A first size of a first grating pattern in a first row of grating patterns is larger than a second size of a second grating pattern in a second row of grating patterns. A first distance between the first row of grating patterns and the waveguide is less than a second distance between the second row of grating patterns and the waveguide.