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. 18, 1978
Filed:
Sep. 21, 1976
Max Epstein, Highland Park, IL (US);
Ashok L Nalamwar, Freeport, IL (US);
Northwestern University, Evanston, IL (US);
Abstract
A microacoustic signal processing device for propagation of shear bulk waves in a substrate. A preferred embodiment of the device includes a substrate having opposed, polished principal and second surfaces. An input interdigital transducer supported on the principal surface includes a plurality of aluminum electrodes photoetched on the principal surface; a ZnO layer overlying the electrodes; and a conductive aluminum film overlying the ZnO layer. Shear bulk waves propagated by the input transducer are available for processing at various locations on the principal and second surfaces of the substrate.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile