PIEZOELECTRIC COMPONENT AND METHOD FOR THE PRODUCTION THEREOF

摘要

The invention relates to a piezoelectric component comprising a stack (1) of piezoelectric layers (2) lying on top of each other and electrode layers (3a, 3b) arranged between said piezoelectric layers (2). The electrode layers (3a, 3b) inside the stack (1) have a central segment (4) and an end segment (6) bordered by the inside of a vertical end area (5) of the stack (1). The end segments (6) of the electrode layers (3a, 3b) are surrounded by a first piezoelectric material (7), the relative extension of which is smaller than the relative extension of a second piezoelectric material (9) arranged in a central area (8) between two adjacent electrode layers (3a, 3b). The invention also relates to a method for producing said piezoelectric component. The inventive component has the advantage of reducing the mechanical stress near the ends of the inner electrodes, resulting in a longer life cycle for the component.