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:
Oct. 23, 2012
Filed:
Sep. 22, 2010
Casper Van Der Avoort, Waalre, NL;
Jozef Thomas Martinus Van Beek, Rosmalen, NL;
Johannes Van Wingerden, Hardinxveld-Giessendam, NL;
Joep Bontemps, Eindhoven, NL;
Robert James Pascoe Lander, Leuven, BE;
Casper van der Avoort, Waalre, NL;
Jozef Thomas Martinus Van Beek, Rosmalen, NL;
Johannes van Wingerden, Hardinxveld-Giessendam, NL;
Joep Bontemps, Eindhoven, NL;
Robert James Pascoe Lander, Leuven, BE;
NXP B.V., Eindhoven, NL;
Abstract
A resonator comprising a beam formed from a first material having a first Young's modulus and a first temperature coefficient of the first Young's modulus, and a second material having a second Young's modulus and a second temperature coefficient of the second Young's modulus, a sign of the second temperature coefficient being opposite to a sign of the first temperature coefficient at least within operating conditions of the resonator, wherein the ratio of the cross sectional area of the first material to the cross sectional area of the second material varies along the length of the beam, the cross sectional areas being measured substantially perpendicularly to the beam.