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:
Aug. 09, 2005
Filed:
May. 19, 2004
Sang-hyun OH, Ichon-shi, KR;
Chung-won Suh, Ichon-shi, KR;
Jin-yong Seong, Ichon-shi, KR;
Hynix Semiconductor Inc., Kyoungki-Do, KR;
Abstract
The present invention provides a ferroelectric memory device and a manufacturing method forming the same capable of preventing characteristic deterioration of a ferroelectric layer due to an plasma. The ferroelectric memory device divided into a first area including a plurality of ferroelectric capacitor and a second area not including the ferroelectric capacitor, includes a semiconductor substrate; a first insulating layer formed on the semiconductor substrate; and a bottom electrode of the ferroelectric capacitor formed in the first insulating layer, wherein a top surface of the bottom electrode is planarized with the first insulating layer; a ferroelectric layer of the ferroelectric capacitor covering not only the bottom electrode but also all the first area; and a top electrode of the ferroelectric capacitor formed on the ferroelectric layer and overlapped with the bottom electrode.