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US09281465B2 Piezoelectric element and method of manufacturing the same 有权
压电元件及其制造方法

Piezoelectric element and method of manufacturing the same
Abstract:
A piezoelectric element includes first internal electrodes and second electrodes, as well as piezoelectric ceramic layers that are made of ceramics and arranged between the first internal electrodes and second internal electrodes. Manganese is present relatively more abundantly in the areas of the piezoelectric ceramic layers adjacent to the first internal electrodes and second internal electrodes, compared to at the centers of the piezoelectric ceramic layers. Insulation performance of the piezoelectric element is kept from dropping over the course of use.
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