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:
Jul. 18, 2006
Filed:
Mar. 26, 2004
Applicants:
Yoon-ho Son, Gyeonggi-do, KR;
Sang-woo Lee, Seoul, KR;
Inventors:
Yoon-ho Son, Gyeonggi-do, KR;
Sang-woo Lee, Seoul, KR;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Ferroelectric memory devices can be formed by polishing an insulating layer on a plurality of ferroelectric capacitors with a silica slurry to reduce a height of the insulating layer above a surface of the plurality of ferroelectric capacitors so that the surface remains covered by a portion of the insulating layer. The insulating layer can be further polished with a ceria slurry to further reduce the height of the insulating layer and to expose a polishing stop layer on the surface of the plurality of ferroelectric capacitors. Related devices are also disclosed.