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:
Jan. 04, 2005
Filed:
Jun. 05, 2003
Applicant:
Heon Lee, Kyungbuk, KR;
Inventor:
Heon Lee, Kyungbuk, KR;
Assignee:
Infineon Technologies AG, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 218242 ; H01L 2120 ;
U.S. Cl.
CPC ...
Abstract
An area-efficient stack capacitor for use in an integrated circuit comprises, in one embodiment, a layer of elemental platinum (Pt) as a bottom electrode, a layer of hemispherical grained poly Si on top of the Pt bottom electrode, a second layer of Pt deposited over the layer of hemispherical grained poly Si, a layer of dielectric deposited over the second layer of Pt, and a third layer of Pt deposited over the dielectric layer, where the third layer of Pt acts as upper electrode.