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:
Jun. 02, 2009
Filed:
Sep. 25, 2006
Thomas Francis Ambrose, Sewickley, PA (US);
Joachim Walter Ahner, Pittsburgh, PA (US);
Kai-chieh Chang, Wexford, PA (US);
Maissarath Nassirou, Pittsburgh, PA (US);
Robert Hempstead, Pittsburgh, PA (US);
Mark Lutwyche, Reisterstown, MD (US);
Thomas Francis Ambrose, Sewickley, PA (US);
Joachim Walter Ahner, Pittsburgh, PA (US);
Kai-Chieh Chang, Wexford, PA (US);
Maissarath Nassirou, Pittsburgh, PA (US);
Robert Hempstead, Pittsburgh, PA (US);
Mark Lutwyche, Reisterstown, MD (US);
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
Epitaxial ferroelectric and magnetic recording structures having graded lattice matching layers are disclosed. A single crystal material such as Si may be used as a substrate material upon which the graded lattice matching layers are deposited. The lattice matching layers may comprise metals and metal alloys, or may comprise oxides doped with selected elements or deposited under different oxygen pressures. A recording layer, such as ferroelectric lead zirconium titanate or a magnetic Fe/Pt multilayer structure, is deposited on the graded lattice matching layers.