Patent ID: 11968903
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. A method of manufacturing a piezoelectric element for a speaker, the method comprising:
for each of a plurality of piezoelectric ceramic layers, etching a middle portion of a recessed side to form a recessed portion, and not etching a middle portion of a non-recessed side;
stacking the plurality of piezoelectric ceramic layers on one another in a thickness direction such that the non-recessed sides of adjacently stacked piezoelectric ceramic layers do not overlap in the thickness direction; and
providing a plurality of electrodes connected to the middle portions of the recessed sides and the non-recessed sides of the plurality of piezoelectric ceramic layers along external walls of the plurality of stacked piezoelectric ceramic layers when stacked.