Development of World’s First PZT Thin Film Actuator through Ink-Jet Printing Method Using Lead-Free Piezoelectric Material
Ricoh has announced the development of a novel and unique ink-jet printing (IJP) technology which can produce PZT (lead ziconate titanate) in a shape at 2 micro meter thickness which is 50 times of film made using conventional IJP method. Using this technology Ricoh has developed a lead-free piezoelectric material featuring the same deformation properties as the PZT material on a silicon substrate. The new technology was made possible by modifying hydrophilicity and hydrophobicity of a substrate surface and by eliminating discards during firing thick film.
In addition to this the company made unique devisals on the nature of a solvent and drying speed control required to prepare film at a uniform thickness. PZT is used in sensors or actuator such as car navigation systems as well as high precision positioning devices.