US 12,232,422 B2
Piezoelectric multilayer component and method for producing a piezoelectric multilayer component
Denis Orosel, Deutschlandsberg (AT); and Yongli Wang, Frauental (AT)
Assigned to TDK Electronics AG, Munich (DE)
Appl. No. 17/272,063
Filed by TDK Electronics AG, Munich (DE)
PCT Filed Oct. 1, 2019, PCT No. PCT/EP2019/076638
§ 371(c)(1), (2) Date Feb. 26, 2021,
PCT Pub. No. WO2020/074329, PCT Pub. Date Apr. 16, 2020.
Claims priority of application No. 10 2018 125 341.9 (DE), filed on Oct. 12, 2018.
Prior Publication US 2021/0296564 A1, Sep. 23, 2021
Int. Cl. H01L 41/18 (2006.01); H10N 30/097 (2023.01); H10N 30/40 (2023.01); H10N 30/50 (2023.01); H10N 30/853 (2023.01)
CPC H10N 30/50 (2023.02) [H10N 30/097 (2023.02); H10N 30/40 (2023.02); H10N 30/8542 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A piezoelectric multilayer component comprising:
a ceramic main body consisting of a ceramic material consisting of a main component and two or more additives,
wherein the main component has the general empirical formula
(KxNa1−x)NbO3, where 0≤x≤1,
wherein the two or more additives are selected from a number of compounds respectively comprising one metal selected from K, Nb, Cu, Mn or Ta.