Image sensor and manufacturing process thereof
US-2024347559-A1 · Oct 17, 2024 · US
Method for manufacturing solid-state image pickup device
US9018722B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9018722-B2 |
| Application number | US-201314018679-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 5, 2013 |
| Priority date | May 27, 2011 |
| Publication date | Apr 28, 2015 |
| Grant date | Apr 28, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A method for manufacturing a solid-state image pickup device that includes a pixel portion and a peripheral circuit portion, includes: forming a first insulating film in the pixel portion and the peripheral circuit portion, forming a second insulating film above the first insulating film, etching the second insulating film in photoelectric conversion elements, forming a metal film on the etched second insulating film in the photoelectric conversion elements and on the second insulating film in the peripheral circuit portion, and removing the metal film in the peripheral circuit portion and forming light-shielding films from the metal film in the photoelectric conversion elements.
First claim
Opening claim text (preview).
What is claimed is: 1. A solid-state image pickup device having a pixel portion in which a photoelectric conversion unit and a charge holding unit are arranged, and having a peripheral circuit portion in the vicinity of the pixel portion and including a transistor, the image pickup device comprising: a first insulating film provided on the charge holding unit and the transistor; a light-shielding film provided on the first insulating film which is provided on the charge holding…
Assignees
Inventors
Classifications
Electricity · mapped topic
- H10F39/8057Primary
Electricity · mapped topic
Electricity · mapped topic
- H10F77/00Primary
Electricity · mapped topic
- H01L31/02Primary
Electricity · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9018722B2 cover?
- A method for manufacturing a solid-state image pickup device that includes a pixel portion and a peripheral circuit portion, includes: forming a first insulating film in the pixel portion and the peripheral circuit portion, forming a second insulating film above the first insulating film, etching the second insulating film in photoelectric conversion elements, forming a metal film on the etched…
- Who is the assignee on this patent?
- Canon Kk
- What technology area does this patent fall under?
- Primary CPC classification H10F39/8057. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 28 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).