Patent ID: 6236146
Filing Date: 2001-05-22
Classification: H01L

Abstract:
A piezoelectric actuator, comprising:a plurality of piezoelectric ceramic layers;a plurality of electrode layers alternately arranged with the plurality of piezoelectric ceramic layers, one above another, to form a stack;at least two metallization strips applied to sides of the stack, wherein the electrode layers are alternately connected with alternating polarity to the at least two metallization strips; andat least two contact tabs, each of the at least two contact tabs having an electrically conductive layer with a first portion connected to one of the at least two metallization strips over an entire height of the respectively connected electrode layers, each of the at least two contact tabs includes a projecting region extending from said first portion at a side of the respective metallization strip, said projecting region being a flag-like projection free of said metallization strip and free of said stack.