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:
Apr. 16, 2013
Filed:
Sep. 17, 2009
Roger Petit, Guichen, FR;
Sylvain Ballandras, Besancon, FR;
Emilie Courjon, Besancon, FR;
Dorian Gachon, Besancon, FR;
Roger Petit, Guichen, FR;
Sylvain Ballandras, Besancon, FR;
Emilie Courjon, Besancon, FR;
Dorian Gachon, Besancon, FR;
Etat Francais Represente par le Delegue General Pour L'Armement, Arcueil, FR;
Centre Nationale de Recherche Scientifique, Paris, FR;
Université de Franche Comte, Besancon, FR;
Abstract
The present invention relates to the field of acoustic wave devices, and particularly to that of transducers capable of operating at very high frequencies, from a few hundred MHz to several gigahertz, and its subject is more particularly an interface acoustic wave device including at least two substrates and a layer of ferroelectric material, the latter being contained between a first electrode and a second electrode and having first positive-polarization domains and second negative-polarization domains, the first and second domains being alternated, wherein the assembly constituted by the first electrode, the layer of ferroelectric material, and the second electrode is contained between a first substrate and a second substrate.