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:
Feb. 18, 2020
Filed:
Oct. 23, 2018
Himax Technologies Limited, Tainan, TW;
Yu-Jui Hsieh, Tainan, TW;
Po-Nan Chen, Tainan, TW;
HIMAX TECHNOLOGIES LIMITED, Tainan, TW;
Abstract
A method for forming an image sensor includes: providing a first device including a visible light receiving portion and an infrared receiving portion; coating a first infrared cutoff filter on the first device; patterning plural photoresists on the first infrared cutoff filter located in the visible light receiving portion to form a second device; etching the second device until a first filter of the first device is exposed to form an infrared cutoff filter and an infrared cutoff filter grid located in the visible light receiving portion, in which the infrared cutoff filter grid is located on the infrared cutoff filter; filling a color filter in the infrared cutoff filter grid and forming a second filter on the first filter; and disposing a spacer layer and a micro-lens layer on the color filter and the second filter sequentially.