公开(公告)号：US20150321222A1

公开(公告)日：2015-11-12

申请号：US14687324

申请日：2015-04-15

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Boum-Seock KIM ,  Kyung-Lock KIM ,  Seung-Ho LEE ,  Jung-Wook SEO ,  Hui-Sun PARK

IPC: B06B1/06 ,  H01L41/047 ,  H01L41/083

CPC classification number: H01L41/0926 ,  B06B1/0603 ,  H01L41/0474 ,  H01L41/083 ,  H01L41/0838

Abstract: A piezoelectric element and piezoelectric vibration module include a piezoelectric material having a plurality of piezoelectric layers laminated thereon and internal electrodes laminated alternately with the piezoelectric layers, respectively. Among the plurality of piezoelectric layers, a magnitude of applied electric field on a piezoelectric layer located at one end is smaller than a magnitude of applied electric field on a piezoelectric layer located at the other end.

Abstract translation: 压电元件和压电振动模块包括分别层压有多个压电层的压电材料和与压电层交替层叠的内部电极。 在多个压电层中，位于一端的压电层上施加的电场的大小小于位于另一端的压电层上施加的电场的大小。

公开(公告)号：US20150255704A1

公开(公告)日：2015-09-10

申请号：US14493148

申请日：2014-09-22

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Boum-Seock KIM ,  Kyung-Lock KIM ,  Hui-Sun PARK ,  Jung-Wook SEO

IPC: H01L41/083 ,  H01L41/187 ,  H01L41/047 ,  H01L41/053

CPC classification number: H01L41/0474 ,  H01L41/0533 ,  H01L41/0926 ,  H01L41/1876

Abstract: A piezoelectric element and a piezoelectric vibrator having the same are disclosed. A piezoelectric element according to the present invention includes: a plurality of ceramic piezoelectric layers configured to contract and expand according to supply of electric power; an electrode pattern constituted with electrodes laminated alternately with the plurality of ceramic piezoelectric layers; and a flexible layer formed on a surface of an upper-most electrode of the electrode pattern so as to protect the upper-most electrode and configured to prevent a crack from occurring by contracting and expanding according to contraction and expansion of the ceramic piezoelectric layers.

Abstract translation: 公开了一种压电元件和具有该压电元件的压电振子。 根据本发明的压电元件包括​​：多个陶瓷压电层，其被构造为根据电力供应来收缩和膨胀; 电极图案，由与所述多个陶瓷压电体层交替层叠的电极构成; 以及形成在电极图案的最上部电极的表面上的柔性层，以保护最上面的电极，并且被构造成通过根据陶瓷压电层的收缩和膨胀而收缩和膨胀来防止裂纹发生。