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:
May. 12, 2015
Filed:
Apr. 17, 2012
Hisashi Yano, Toyama, JP;
Hisashi Yano, Toyama, JP;
Abstract
The present invention achieves an optical characteristic exhibiting excellent sensitivity or the like, by increasing the opening dimension of an optical waveguide without changing the interconnection layout, so that the optical waveguide can surely be filled with a film having high refractive index. Pixel portion A of a solid-state imaging device includes photodiode PD formed on a semiconductor substrate; a first insulating film including a concave portion above photodiode PD; and a second insulating film formed on the first insulating film such that the concave portion is filled with the second insulating film. Peripheral circuit portion B of the solid-state imaging device includes an internal interconnection formed in the first insulating film and a pad electrode formed on the internal interconnection to be electrically connected to the internal interconnection. The pad electrode is formed on the second insulating film.