Patent ID: 6661156
Filing Date: 2003-12-09
Classification: H01L

Abstract:
A piezoelectric ceramic body, comprising:a plurality of insulating layers arranged one over another and made of a piezoceramic material; and a plurality of conducting layers made of an electrode material and by which the plurality of insulating layers are at least regionally separated from one another, wherein: a plan view of at least the plurality of insulating layers at least approximates a shape of an n-gon, n is greater than four, the plurality of conducting layers cover each insulating layer such that two adjacent ones of the plurality of insulating layers only come in direct contact with one another in a region of narrow dead zones, the region of narrow dead zones is regionally located at an outer edge of the plurality of insulating-layers, the plurality of conducting layers extend to the outer edge of the plurality of insulating layers at alternating faces of the n-gon, and the plurality of conducting layers do not extend to the outer edge of the plurality of insulating layers at adjacent faces of the n-gon.