Patent ID: 7170156
Filing Date: 2007-01-30
Classification: H01L

Abstract:
1. A multi-layer piezoelectric component, comprising: a plurality of piezoelectric layers which are wound around an axis to form a laminar roll having first and second end faces transverse to said axis, said piezoelectric layers including at least one first layer and at least one second layer, each of said first and second layers having opposite first and second edges respectively at said first and second end faces, and opposite inner and outer circumferential surfaces; a first inner electrode sheet and a second inner electrode sheet respectively overlying said inner circumferential surfaces of said first and second layers; and first and second outer electrodes respectively and electrically connected to said first and second inner electrode sheets, wherein said first inner electrode sheet has a first end flush with said first edge of said first layer and a second end which is opposite to said first end, said first outer electrode being mounted on said first end face of said laminar roll and being in contact with said first end of said first inner electrode sheet.