Patent ID: 6263550
Filing Date: 2001-07-24
Classification: H01L,Y10T

Abstract:
A method for manufacturing a plurality of piezoelectric actuators in parallel, comprising the steps of:manufacturing thin foils, each of the foils being composed of an unfired piezoelectric ceramic material;forming at least one first connecting opening and at least one second connecting opening in each of the foils, the first and second connecting openings penetrating the foils, the first and second connecting openings of each of the foils being assigned to a respective one of the piezoelectric actuators;coating a surface of each of the foils with a plurality of electrodes, at least one of the electrodes being assigned to the respective one of the piezoelectric actuators in each of the foils, the first and second connecting openings penetrating the foils in an area of the electrodes, each of the electrodes having a cut-out portion which surrounds one of the first connecting openings or one of the second connecting openings;stacking the foils one over another in a particular layer sequence to form a stacked arrangement, the stacked arrangement including the first and second connecting openings arranged one over another, the particular layer sequence being selected to alternately surround particular openings of the first and second connecting openings by the cut-out portion only for every alternating one of the foils, the particular openings being arranged one over another, the electrodes being alternately connected to one of the first and second connecting openings;providing an electrically conductive paste into the first and second connecting openings;firing the stacked arrangement; andseparating the stacked arrangement into individual ones of the piezoelectric actuators.