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:
Apr. 18, 2017
Filed:
Feb. 27, 2014
Taiwan Semiconductor Manufacturing Co., Ltd, Hsin-Chu, TW;
Volume Chien, Tainan, TW;
Yu-Heng Cheng, Lukang Township, TW;
Fu-Tsun Tsai, Tainan, TW;
Hsi-Jung Wu, Kaohsiung, TW;
Chi-Cherng Jeng, Tainan, TW;
TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD., Hsin-Chu, TW;
Abstract
Embodiments of the disclosure provide an image sensor device. The image sensor device includes a semiconductor substrate. The semiconductor substrate has a front surface, a back surface opposite to the front surface, a light-sensing region close to the front surface, and a trench adjacent to the light-sensing region. The image sensor device includes a reflective layer positioned on an inner wall of the trench, wherein the reflective layer has a light reflectivity ranging from about 70% to about 100%.