Surface acoustic wave device
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United States of America Patent
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Dec 9, 2008
Grant Date -
May 5, 2005
app pub date -
Oct 1, 2004
filing date -
Oct 1, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A surface acoustic wave device includes a piezoelectric substrate, at least one interdigital transducer (IDT) provided on the piezoelectric substrate, and a shield electrode provided on the piezoelectric substrate. The IDT has a first pattern on an edge that faces the shield electrode. The shield electrode has a second pattern on an edge so as to be evenly spaced apart from the first pattern.
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