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:
Dec. 01, 2015
Filed:
Jun. 28, 2013
Taiwan Semiconductor Manufacturing Company, Ltd., Hsin-Chu, TW;
Allen Tseng, Kao Hsiung, TW;
Che-Min Lin, Tainan, TW;
Zen-Fong Huang, Tainan, TW;
Volume Chien, Sinying, TW;
Chi-Cherng Jeng, Madou Township, TW;
Taiwan Semiconductor Manufacturing Company, Ltd., Hsin-Chu, TW;
Abstract
The present disclosure provides an integrated circuit device comprising a substrate having a back surface and a sensing region disposed in the substrate and being operable to sense radiation projected towards the back surface of the substrate. The device further includes a waveguide disposed over the back surface of the substrate. The waveguide is aligned with the sensing region such that the waveguide is operable to transmit the radiation towards the aligned sensing region. The waveguide includes a waveguide wall, and an inner region disposed adjacent to the waveguide wall. A diffractive index of the waveguide wall is less than a diffractive index of the inner region.