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.:

US 9093418 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 28, 2015

Filed:

Jan. 17, 2014
Applicant:

Fujitsu Semiconductor Limited, Yokohama-shi, Kanagawa, JP;

Inventor:

Katsuyoshi Matsuura, Kawasaki, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/00 (2006.01); H01L 49/02 (2006.01); H01L 27/115 (2006.01);
U.S. Cl.
CPC ...
H01L 28/40 (2013.01); H01L 27/11507 (2013.01); H01L 28/57 (2013.01);
Abstract

A ferroelectric capacitor is formed on a semiconductor substrate, the ferroelectric capacitor comprising a lower electrode, a ferroelectric film and an upper electrode stacked in an order recited. A first capacitor protective film of aluminum oxide having a thickness equal to or thicker than 30 nm is formed covering the ferroelectric capacitor. A first insulating film of silicon oxide is formed on the first capacitor protective film by chemical vapor deposition using high density plasma.


Find Patent Forward Citations

Matsuura, Katsuyoshi. (2015). Manufacture method for semiconductor device capable of preventing reduction of ferroelectric film (U.S. Patent No. 9093418). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9093418

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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