Patent ID: 6681463
Filing Date: 2004-01-27
Classification: H03H,Y10T

Abstract:
A method for manufacturing piezoelectric components, in which a vibration electrode, terminal electrodes, and lead electrodes for connecting the vibration electrode to the terminal electrodes are formed on a piezoelectric substrate by a thin-film deposition technique, the method comprising the steps of:preparing a first hard mask having openings corresponding to the vibration electrode and lead electrodes; preparing a second hard mask having openings corresponding to at least the terminal electrodes; continuously forming the vibration electrode and lead electrodes by the thin-film deposition technique while arranging the first hard mask on the piezoelectric substrate; and forming at least the terminal electrodes by the thin-film deposition technique while arranging the second hard mask on the piezoelectric substrate; wherein the first and second hard masks are arranged such that the openings of the first and second hard masks are partially overlapped to form an overlapped portion, and the overlapped portion is located at a position on one of the lead electrode and the terminal electrode, the position being spaced from the vibration electrode by at least about three times the thickness of the piezoelectric substrate.