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:
Sep. 21, 2004
Filed:
Jan. 16, 2002
Donald L. Yates, Boise, ID (US);
Garry A. Mercaldi, Meridian, ID (US);
James J. Hofmann, Boise, ID (US);
Micron Technology, Inc., Boise, ID (US);
Abstract
Lower electrodes of capacitors composed of a texturizing underlayer and a conductive material overlayer are provided. The lower electrodes have an upper roughened surface. In one embodiment, the texturizing layer is composed of porous or relief nanostructures comprising a polymeric material, for example, silicon oxycarbide. In another embodiment, the texturizing underlayer is in the form of surface dislocations composed of annealed first and second conductive metal layers, and the conductive metal overlayer is agglomerated onto the surface dislocations as nanostructures in the form of island clusters.