Patent classifications
H
H03
H03H
9/00
H03H9/46
H03H9/64
H03H9/6423
H03H9/6433
H03H9/644
H03H9/6456
H03H9/6459
H03H9/6463
H03H9/6463
Elastic wave element with a reinforcement electrode and ladder filter using same
09614495
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2017-04-04
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Methods and apparatus for reducing electric loss in an elastic wave element. In one example, the elastic wave element includes a piezoelectric body having a upper surface, an interdigital transducer (IDT) electrode disposed on the piezoelectric body, a connection wiring disposed on the piezoelectric body and electrically connected to the IDT electrode, the connection wiring having a lower connection wiring and an upper connection wiring provided above the lower connection wiring, and a reinforcement electrode provided above the connection wiring, the reinforcement electrode being in contact with and electrically connected to the lower connection wiring.