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:
Mar. 09, 2004
Filed:
Jul. 01, 2002
Rainer Bruchhaus, Kanagawa-Pref, JP;
Gerhard Enders, Olching, DE;
Walter Hartner, Glen Allen, VA (US);
Matthias Krönke, Dresden, DE;
Thomas Mikolajick, München, DE;
Nicolas Nagel, Naka-Ku Yokohama, JP;
Michael Röhner, München, DE;
Infineon Technologies AG, Munich, DE;
Abstract
To manufacture FeRAM memories in a particularly space-saving fashion and, thus, increase the storage density, a manufacturing method forms at least some of the multiplicity of capacitor devices used as storage elements with a multiplicity of individual capacitors that are connected in parallel with one another. The individual capacitors have ferroelectric or paraelectric dielectric regions with different coercitive voltages such that there is a resulting multiplicity of storage states for each of the individual capacitors.