公开(公告)号：US20210376220A1

公开(公告)日：2021-12-02

申请号：US16957829

申请日：2018-12-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jisun KIM ,  Taeyoung KIM ,  Joungkook SEO ,  Sanghoon CHOI

IPC: H01L41/083 ,  H01L41/047 ,  H01L41/187 ,  H01L41/27 ,  H04R17/00 ,  H01L41/332 ,  H04R3/12

Abstract: Provided are a piezoelectric element for a speaker and a method of manufacturing the same. The piezoelectric element for a speaker includes a plurality of piezoelectric ceramic layers stacked on one another in a thickness direction, and a plurality of electrodes provided to be connected to middle portions of sides of the plurality of piezoelectric ceramic layers along external walls of the plurality of stacked piezoelectric ceramic layers, wherein middle portions of some sides from among a plurality of sides of each of the plurality of piezoelectric ceramic layers are etched, and wherein the plurality of piezoelectric ceramic layers are stacked on one another in the thickness direction not to overlap non-etched sides from among the plurality of sides.