Patent ID: 6955927

Claim:
A method for manufacturing an electromechanical transducer comprising the steps of: forming an adhesive metal layer composed of an adhesive metal over the surface where said transducer is installed; forming a first anti-diffusion metal layer composed of an anti-diffusion metal over said adhesive metal layer; forming a bottom electrode over said anti-diffusion metal layer; forming a second anti-diffusion metal layer composed of said anti-diffusion metal over said bottom electrode; and forming a ferroelectric thin film over said second anti-diffusion metal layer through baking, and thereby diffusing said adhesive metal all the way to said second anti-diffusion metal layer and producing an anti-diffusion layer at the location of said second anti-diffusion metal layer promoting the alloying of said anti-diffusion metal and said bottom electrode, and producing an adhesive layer at the location of said adhesive metal layer and said first anti-diffusion metal layer.