Piezoelectric component

Details Piezoelectric component Piezoelectric component

2003-10-27

2008-10-07

Schuberg, Darren (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

Reexamination Certificate

active

07432639

ABSTRACT:
A piezoelectric component includes a stack of ceramic layers and electrode layers between ceramic layers in the stack. The electrode layers contain copper and the ceramic layers contain lead-zirconate-titanate that is doped with Nb. The ceramic layers are made from a material having a composition of Pb0.988V0.012(Zr0.504+xTi0.472−xNb0.024)O3.000, where −0.05≦x≦0.05.

REFERENCES:
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patent: WO01/45138 (2001-06-01), None
patent: WO02/055450 (2002-07-01), None
Barlingay C. K. et al, “Dopant Compensation Mechanism and Leakage Current in Pb(Zr0.52,Ti0.48)O3Thin Films”, Thin Solid Films, 1996, Elsevier, Switzerland, Bd. 272, Nr. 1, pp. 112-115.
Barlingary C. K. et al, “Observation of Sol-gel Solid Phase Epitaxial Growth of Ferroelectric Pb(Nb,Zr,Ti)O3Thin Films on Sapphire”, Applied Physics Letters, 1992, USA, Bd. 61, Nr. 11, pp. 1278-1280.
Zou Q. et al, “Microstructural Characterization of Donor-doped Lead Zirconate Titanate Films Prepared by Sol-gel Processing”, Preparation and Characterization, Elsevier Sequoia, NL, Bd. 402, Nr. 1-2, 2002, pp. 65-70.
Remiens D. et al, “Piezoelectric Properties of Sputtered PZT Films: Influence of Structure, Micro Structure, Film Thickness (Zr, Ti) Ratio and Nb Substitution”, Materials Science in Semiconductor Processing, Elsevier Science Publishers B. V., Barking UK, Bd. 5, Nr. 2-3, 2002, pp. 123-127.

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