PIEZOELECTRIC ELEMENT AND PIEZOELECTRIC VIBRATION MODULE INCLUDING THE SAME

Disclosed are a piezoelectric element, and a piezoelectric vibration module including the same. According to an aspect of the present invention, the piezoelectric element comprises: a laminate unit individually including a piezoelectric layer sequentially stacked, and an inner electrode layer formed...

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Bibliographic Details
Main Authors KIM, BOUM SEOCK, KIM, KYUNG LOCK, PARK, HUI SUN, LEE, SEUNG HO, SEO, JUNG WOOK
Format Patent
LanguageEnglish
Korean
Published 20.01.2016
Subjects
ELECTRICITY
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Summary:Disclosed are a piezoelectric element, and a piezoelectric vibration module including the same. According to an aspect of the present invention, the piezoelectric element comprises: a laminate unit individually including a piezoelectric layer sequentially stacked, and an inner electrode layer formed between the neighboring piezoelectric layers; an electrode unit formed in the laminate unit, and applying charges having different polarities to the neighboring inner electrode layer; and a ground unit formed in the laminate unit, and removing a parasitic capacity occurred in the laminate unit. 압전 소자 및 이를 포함하는 압전 진동 모듈 이 개시된다. 본 발명의 일 측면에 따른 압전 소자는 순차적으로 적층되는 압전체층 및 인접하는 압전체층 사이에 형성되는 내부 전극층을 각각 포함하는 적층물부; 적층물부에 형성되고, 인접하는 내부 전극층에 서로 다른 극성의 전하를 인가하는 전극부; 및 적층물부에 형성되고, 적층물부에 발생하는 기생 용량을 제거할 수 있는 접지부; 를 포함한다.
Bibliography:Application Number: KR20140086924