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:
Sep. 14, 2021
Filed:
May. 07, 2019
Taiwan Semiconductor Manufacturing Co., Ltd., Hsin-Chu, TW;
Tsun-Kai Tsao, Tainan, TW;
Jiech-Fun Lu, Madou Township, TW;
Shih-Pei Chou, Tainan, TW;
Tzu-Ming Wang, Hsin-Chu, TW;
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Abstract
Various embodiments of the present disclosure are directed towards an image sensor including a light pipe structure. A photodetector disposed within a semiconductor substrate. A gate electrode is over the semiconductor substrate and borders the photodetector. An inter-level dielectric (ILD) layer overlies the semiconductor substrate. A conductive contact is disposed within the ILD layer such that a bottom surface of the conductive contact is below a top surface of the gate electrode. The light pipe structure overlies the photodetector such that a bottom surface of the light pipe structure is recessed below a top surface of the conductive contact.