Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
September 16, 2008
0Patent Application Number
116275370
Date Filed
January 26, 2007
0Patent Primary Examiner
Patent abstract
In a surface acoustic wave device, a plurality of grooves are provided on a piezoelectric substrate, an electrode film defining an IDT electrode is formed by filling an electrode material in the grooves, an insulator layer, such as a SiO2 film, is arranged so as to cover the piezoelectric substrate and the electrode film formed in the grooves, and the surface of the insulator layer is flattened.
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