Patent ID: 7065846
Filing Date: 2006-06-27
Classification: H01L,Y10T

Abstract:
1. A method for the manufacture of a piezoelectrical multilayer actuator comprising applying thin coats of a piezoceramic material as green leaves, to at least one internal electrode such that the green leaves are stacked one on the other in a block and the internal electrodes are brought alternately to opposite faces of the actuator where they are connected together by an external electrode to form an actuator green body; sintering the actuator green body; abrasively shaping the sintered green body; applying ground metallization for the external electrode; applying an area of said actuator to be insulated by thick-layer method a paste comprising an inorganic, low-sintering material or material mixture and an organic binder system, and subjecting the body coated with said paste to a firing process wherein the layer thickness after sintering is between 1 and 40 μm, preferably between 2 and 20 μm or between 4 and 15 μm, wherein-the firing on of the insulating layer takes place together with the firing on of the external electrode and forms a continuous layer.