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. 24, 2012
Filed:
Feb. 13, 2008
Aleh Loseu, Greensboro, NC (US);
Jayanti Jaganatha Rao, Jamestown, NC (US);
Aleh Loseu, Greensboro, NC (US);
Jayanti Jaganatha Rao, Jamestown, NC (US);
RF Micro Devices, Inc., Greensboro, NC (US);
Abstract
Embodiments of the disclosure relate to a process of making a surface acoustic wave device having a series connected interdigitated transducers with center chirping. A piezoelectric substrate is provided. Two acoustic reflectors may be formed on the piezoelectric substrate to define an acoustic cavity between the acoustic reflectors. In addition, at least three beta interdigitated transducers (IDTs) adjacent one another are formed on the piezoelectric substrate in electrical series with each other and aligned in acoustic series with each other between the acoustic reflectors, such that the at least three beta IDTs comprise at least one inner beta IDT between two outer beta IDTs, a center portion of the at least one inner beta IDT being chirped.