Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
David Martin0
Joel Philliber0
John Choy0
Date of Patent
July 31, 2012
Patent Application Number
12434092
Date Filed
May 1, 2009
Patent Citations Received
Patent Primary Examiner
Patent abstract
An acoustic device includes a transducer formed on a first surface of a substrate and an acoustic horn formed in the substrate by a dry-etching process through an opposing second surface of the substrate. The acoustic horn is positioned to amplify sound waves from the transducer and defines a non-linear cross-sectional profile.
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