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:
Jun. 02, 2020
Filed:
Jul. 21, 2017
Taiwan Semiconductor Manufacturing Co., Ltd., Hsinchu, TW;
Bo-Tsung Tsai, Kaohsiung, TW;
TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD., Hsinchu, TW;
Abstract
A pixel unit of an image sensor is provided. The pixel unit includes a semiconductor substrate, a light-sensitive element, a contact and a protection layer. The contact is formed right on the light-sensitive element to enable electrical signals outputted from the light-sensitive element to be transmitted to a peripheral circuit. The protection layer is disposed on the light-sensitive element and surrounds the first contact. The electrical signals of the light-sensitive element can be upward transmitted to the peripheral circuit through the contact. Therefore, the light-sensitive element can occupy a big area, and high quantum efficiency (QE) is achieved accordingly.