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:
Nov. 13, 2007
Filed:
Jan. 03, 2006
Heung-jin Joo, Gyeonggi-do, KR;
Bon-jae Koo, Gyeonggi-do, KR;
Jung-hoon Park, Gyeonggi-do, KR;
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Abstract
An embodiment of the FeRAM includes a ferroelectric capacitor including a bottom electrode, a ferroelectric layer, and a top electrode. Strontium ruthenium oxide is formed between the bottom electrode and the ferroelectric layer and between the ferroelectric layer and the top electrode. A diffusion barrier layer including strontium ruthenium oxide and iridium is formed between the top electrode and a direct cell contact plug coupled to a plate line interconnecting top electrodes of ferroelectric capacitors. Thus, diffusion of nitrogen or metallic materials produced in subsequent processes is suppressed to prevent degradation of the ferroelectric layer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile