Patent ID: 9478725
Filing Date: 2016-10-25
CPC Classification: F02M,H01L

Claim Text:
1. A multi-layer piezoelectric element, comprising: a stacked body in which piezoelectric layers and internal electrodes are laminated; a metallized layer disposed on a side surface of the stacked body, the metallized layer being electrically connected to the internal electrodes; and an external electrode member disposed on the metallized layer, with an electrically-conductive adhesive layer interposed therebetween, wherein the external electrode member is an electrode of meshed structure, wherein the electrically-conductive adhesive layer has a plurality of voids configured not to open on a surface thereof which surface is in contact with the metallized layer, and the voids are positioned in corresponding relation to meshes of the external electrode member, and wherein the electrically-conductive adhesive layer is located between the metallized layer and the external electrode member and protrudes outwardly of the external electrode member.