Patent ID: 8733906
Filing Date: 2014-05-27
Classification: B41J,H01L

Abstract:
1. An electromechanical conversion element, comprising: an electromechanical conversion film including a PZT; an upper electrode formed on a top of the electromechanical conversion film and including a first strontium ruthenium oxide; and a lower electrode formed on a bottom of the electromechanical conversion film and including a second strontium ruthenium oxide, wherein Sr-pzt/Sr-sr≦0.01, wherein Sr-pzt is a secondary ion mass spectrometry intensity for a secondary ion of strontium of the PZT at a position of ½ of a thickness of the electromechanical conversion film and Sr-sr is a secondary ion mass spectrometry intensity for a secondary ion of strontium of the second strontium ruthenium oxide at a position of ½ of a thickness of the lower electrode.