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:
Nov. 23, 2010
Filed:
Apr. 21, 2010
Roy H. Olsson, Albuquerque, NM (US);
Ihab F. El-kady, Albuquerque, NM (US);
Frederick Mccormick, Albuquerque, NM (US);
James G. Fleming, Albuquerque, NM (US);
Carol Fleming, Legal Representative, Albuquerque, NM (US);
Roy H. Olsson, Albuquerque, NM (US);
Ihab F. El-Kady, Albuquerque, NM (US);
Frederick McCormick, Albuquerque, NM (US);
James G. Fleming, Albuquerque, NM (US);
Carol Fleming, legal representative, Albuquerque, NM (US);
Sandia Corporation, Albuquerque, NM (US);
Abstract
A microfabricated bulk wave acoustic bandgap device comprises a periodic two-dimensional array of scatterers embedded within the matrix material membrane, wherein the scatterer material has a density and/or elastic constant that is different than the matrix material and wherein the periodicity of the array causes destructive interference of the acoustic wave within an acoustic bandgap. The membrane can be suspended above a substrate by an air or vacuum gap to provide acoustic isolation from the substrate. The device can be fabricated using microelectromechanical systems (MEMS) technologies. Such microfabricated bulk wave phononic bandgap devices are useful for acoustic isolation in the ultrasonic, VHF, or UHF regime (i.e., frequencies of order 1 MHz to 10 GHz and higher, and lattice constants of order 100 μm or less).