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:
Jul. 16, 2013
Filed:
Apr. 24, 2009
Andreras B. M. Jansman, Nuenen, NL;
Rensinus C. Strijbos, Nijmegen, NL;
Erik Spaan, Elst, NL;
Jan-willem Lobeek, Nijmegen, NL;
Andreras B. M. Jansman, Nuenen, NL;
Rensinus C. Strijbos, Nijmegen, NL;
Erik Spaan, Elst, NL;
Jan-Willem Lobeek, Nijmegen, NL;
TriQuint Semiconductor, Inc., Hillsboro, OR (US);
Abstract
A resonator comprises a bottom electrode layer (), a top electrode layer () which defines a resonator body; and a piezoelectric layer () sandwiched between the top and bottom electrode layers. An external region () is provided around the outside of the periphery of the resonator body. The cutoff frequency of a first resonance mode of the external region () is matched to the cutoff frequency of a second, different, resonance mode of the resonator body. The invention provides a deliberate change (typically increase) in the cutoff frequency the resonance modes in the external region, so that one of the modes has a cutoff frequency close to the cutoff frequency of the fundamental mode of the resonator body.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile