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:
Dec. 02, 2008
Filed:
Mar. 23, 2005
Applicants:
Hiroaki Tamura, Kuwara, JP;
Koichi Kobayashi, Suwa, JP;
Inventors:
Hiroaki Tamura, Kuwara, JP;
Koichi Kobayashi, Suwa, JP;
Assignee:
Seiko Epson Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/108 (2006.01);
U.S. Cl.
CPC ...
Abstract
A ferroelectric memory element has a memory cell array including memory cells arranged in a matrix configuration, each of the memory cells having a lower electrode, an upper electrode arranged in a direction intersecting the lower electrode, and a ferroelectric layer disposed at least in an intersecting area between the upper electrode and the lower electrode, wherein a hydrogen barrier film and a hydrogen barrier film are arranged at least below the memory cell array, and a bottom hydrogen barrier film is arranged below the memory cell array.