摘要:
The present invention provides a piezoelectric film element with improved adhesion between a first protective film and a substrate. This invention also provides a method of manufacturing a piezoelectric film element, which makes it possible to selectively form, by a hydrothermal synthesis, a piezoelectric film with excellent piezoelectric properties in a specified area. This piezoelectric element comprises, over a substrate 12: a piezoelectric film; a common electrode and an individual electrode located to hold the piezoelectric film in between; a first protective film 14 which is formed over almost the entire surface of the substrate 12 and which protects the substrate 12 to avoid the formation of the piezoelectric film directly over the substrate 12; and a base film 16 which is formed over the first protective film 14 in the area for forming the piezoelectric film, and which functions as a base when the piezoelectric film is caused to grow to be formed. The piezoelectric film is formed over the base film 16.
摘要:
In an ink jet head having: a nozzle plate in which a plurality of nozzle openings are formed; a flow path substrate comprising a reservoir to which ink is externally supplied, and a plurality of pressure chambers which are connected to the reservoir via an ink supply port and which respectively communicate with the nozzle openings; an elastic film which pressurizes ink in the pressure chambers; and driving means located at a position opposing the respective pressure chambers for causing the elastic film to conduct flexural deformation, the pressure chambers are arranged in a single-crystal silicon substrate of a (110) lattice plane and along a lattice orientation.
摘要:
An electrothermal transfer printing apparatus employing an electrothermal transfer film having an ink layer and a resistive layer is used with a print head having a substrate which carries recording electrodes. The recording electrodes are fabricated on the substrate by thick film printing process so as to have a hardness which is controlled relative to that of the substrate. The print head is held in sliding contact with the resistive layer in the transfer film to effect selective heating of the resistive layer for the transfer of ink to a recording body. The angle at which the print head contacts the recording body depends upon the relative hardnesses of the substrate and the electrodes. The print head is cleaned after a predetermined travel of the transfer film over the print head, so that clarity of printing is maintained in spite of the passage of long lengths of electrothermal transfer film.