METHOD FOR REDUCING ELECTRIC LOSS IN CONNECTION WIRING OF ACOUSTIC WAVE DEVICE

PROBLEM TO BE SOLVED: To provide a method for reducing electric loss in an acoustic wave device.SOLUTION: An acoustic wave device 60 includes: a piezoelectric body 50 having an upper surface; interdigital transducer (IDT) electrodes 10, 20 disposed on the piezoelectric body; a connecting wire 30 dis...

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Bibliographic Details
Main Authors MIYANARI MITSUNORI, NAKAMURA HIROYUKI, HAMAOKA YOSUKE, NAKANISHI HIDEKAZU
Format Patent
LanguageEnglish
Japanese
Published 01.11.2018
Subjects
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS
RESONATORS
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Summary:PROBLEM TO BE SOLVED: To provide a method for reducing electric loss in an acoustic wave device.SOLUTION: An acoustic wave device 60 includes: a piezoelectric body 50 having an upper surface; interdigital transducer (IDT) electrodes 10, 20 disposed on the piezoelectric body; a connecting wire 30 disposed on the piezoelectric body and electrically connected to the IDT electrode; and a reinforcing electrode 40 provided on the connection wire. The connection wire includes: a lower connection wire; and an upper connection wire provided on the lower connection wire. The reinforcing electrode is in contact with and electrically connected to the lower connection wire.SELECTED DRAWING: Figure 3 【課題】弾性波素子における電気損失を低減する方法を提供する。【解決手段】弾性波素子６０は、上面を有する圧電体５０と、当該圧電体に配置されたインターディジタルトランスデューサ（ＩＤＴ）電極１０、２０と、当該圧電体に配置されて当該ＩＤＴ電極に電気接続された接続配線３０と、当該接続配線の上に設けられた補強電極４０とを含む。当該接続配線は、下側接続配線と、当該下側接続配線の上に設けられた上側接続配線とを含む。当該補強電極は、当該下側接続配線に接触し、かつ、電気接続される。【選択図】図３
Bibliography:Application Number: JP20180093592