摘要:
PROBLEM TO BE SOLVED: To provide a method of manufacturing a composition for ferroelectric thin film formation excelling in storage stability and uniformity of a film in applying and drying it. SOLUTION: Metallic alkoxide, metallic acetate, metal acetylacetonate salt, amines and an alcohol solvent are mixed, this mixture 1 is heated by using a distillation column 3, and refluxed while removing a part of an evaporant, and water is replenished, whereby a colloid solution for an MOD method is formed. COPYRIGHT: (C)2007,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a method of preparing a composition for forming a PZT thin film having uniform metal concentration and excellent preservation stability. SOLUTION: A colloid solution for a metal organic deposition (MOD) method is prepared by mixing titanium alkoxide, lead acetate hydrate, zirconium acetyl acetonate, amine and an alcohol solvent and heating the mixture 1 while totally refluxing. COPYRIGHT: (C)2007,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a method for manufacturing a piezoelectric substance element, having improved piezoelectric and breakdown voltage characteristics. SOLUTION: The method for manufacturing the piezoelectric substance element is provided with a first process of applying a first sol for forming a piezoelectric substance film on a substrate, where a lower electrode is formed, a second process of applying a second sol for forming the piezoelectric film after conducting the first process at least once, and a third process of heat treating at a predetermined temperature, after the second process. The first and second sols are provided with a composition, capable of forming the piezoelectric substance film, having a perovskite-type crystal structure expressed by general Formula A x B y O 3 . The content of substance composing an A site of the first sol is larger than that of the second sol. COPYRIGHT: (C)2006,JPO&NCIPI
摘要:
PROBLEM TO BE SOLVED: To provide a method of manufacturing a piezo-electric element which improves the piezo-electric characteristic of a piezoelectric material layer, and can be equalized comparatively easily, and to provide a method of manufacturing a liquid injection head. SOLUTION: The method of manufacturing the piezo-electric element includes a step of forming a lower electrode layer 60 to one surface side of a substrate 10, a step of forming a piezo-electric material layer 70 made of a plurality of layers of ferroelectric film on the lower electrode layer, and a step of forming an upper electrode film 80 on the piezoelectric material layer. The step of forming the piezoelectric material layer includes at least a coating step of forming the ferroelectric precursor film by applying the ferroelectric material on the lower electrode layer, a drying step of drying the ferroelectric precursor film, a degreasing step of degreasing the ferroelectric precursor film, and a calcinating step of calcinating the ferroelectric material precursor film. The heating temperature in the previous step before the calcinating step of the step of forming the piezo-electric material layer is changed according to the thermal hysteresis of the lower electrode layer. COPYRIGHT: (C)2006,JPO&NCIPI
摘要:
PROBLEM TO BE SOLVED: To provide a liquid jet head of which the mounting reliability is enhanced by certainly connecting a lead electrode and drive wiring, a manufacturing method therefor and a liquid jet device. SOLUTION: The liquid jet head is equipped with a flow channel forming substrate 10 to which a pressure generating chamber 12 communicating with a nozzle orifice for ejecting a liquid is formed, the piezoelectric element 300, which comprises a lower electrode 60, a piezoelectric layer 70 and an upper electrode 80, provided on one surface of the flow channel forming substrate 10 through a vibration plate, the seal substrate 30 bonded to the surface on the side of the piezoelectric element 300 of the flow channel forming substrate 10 to have a piezoelectric element holding part 31 for sealing the piezoelectric element 300 and the lead electrode 90 drawn out from at least one electrode 80 of the piezoelectric element 300 to the outside of the piezoelectric element holding part 31. In this liquid jet head, the flow channel forming substrate 10 and the seal substrate 30 are bonded by an adhesive 100 kneaded with a granular insulating material 101 to regulate the flow-out amount of the adhesive 100. COPYRIGHT: (C)2004,JPO
摘要:
PROBLEM TO BE SOLVED: To provide a method for manufacturing a liquid ejecting head, which can secure a preferable hysteresis characteristic even when removing surface contamination of a pressure generating element by magnetron dry etching.SOLUTION: The method for manufacturing a liquid ejecting head includes: a surface removing step of removing the surface contamination of the pressure generating element by magnetron dry etching; and a wiring step of laying wiring on the pressure generating element, wherein a magnetron application current in the surface removing step is configured based on a surface removal amount of the pressure generating element and a variation in hysteresis characteristic in association with the surface removal.
摘要:
PROBLEM TO BE SOLVED: To provide an actuator in which the occurrence of a crack of a piezoelectric element due to a longitudinal tensile stress acting on the piezoelectric element from a diaphragm can be surely prevented when the piezoelectric element bends by being applied with voltage, and a liquid jet head using the same and a liquid jet apparatus. SOLUTION: The actuator is provided with: the diaphragm disposed on a substrate; and the piezoelectric element 300 comprising a lower electrode 60 disposed on the diaphragm, a piezoelectric layer 70 disposed on the lower electrode 60 and an upper electrode 80 disposed on the piezoelectric layer 70. The piezoelectric layer 70 is provided with a plurality of recessed parts 71 which have the depth to substantially separate the piezoelectric layer 70, are disposed across the transverse direction. The recessed parts 71 are spaced at prescribed intervals in the longitudinal direction of the piezoelectric layer 70, and the upper electrode 80 is continuously formed within the recessed parts 71 of the piezoelectric layer 70 as well. COPYRIGHT: (C)2009,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide an actuator that can prevent cracks from being generated at a piezoelectric substance element layer comparatively easily and assuredly, keeping an excellent displacement behavior, and to provide a liquid injection head and a liquid injection apparatus. SOLUTION: The actuator includes diaphragms 50, 55 provided on a substrate, and a piezoelectric substance element 300 having lower electrodes 60 provided on the diaphragms 50, 55, piezoelectric substance element layers 70 formed on the lower electrodes 60 and upper electrodes 80 provided on the piezoelectric substance element layers 70. Between the lower electrodes 60 and the upper electrodes 80 on the piezoelectric substance element 300, many low dielectric constant layers 75 with given widths composed of materials with dielectric constants lower than that of the piezoelectric substance element layer 70 are formed at given intervals along the longitudinal direction of the piezoelectric substance element 300. COPYRIGHT: (C)2009,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a composition for forming a ferroelectric film which can form a ferroelectric film by an MOD method and by a low temperature firing, and to provide its manufacturing method and a manufacturing method of a ferroelectric film using it. SOLUTION: The composition for forming a ferroelectric film is one that is used for forming a ferroelectric film by the MOD method and contains an organometallic compound containing lead (Pb) and zirconium (Zr) and a methyl group and a carboxylate group, and a compound of a metal other than lead and zirconium. COPYRIGHT: (C)2008,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide an actuator in which the deformation quantity of a vibration plate due to driving of a piezoelectric element can be improved while maintaining driving durability of the vibration plate in a good condition, and to provide a manufacturing method thereof, a liquid jetting head and a liquid jetting device. SOLUTION: The actuator has a plurality of piezoelectric elements 300 each having a lower electrode 60 provided on one surface side of a substrate 10, a piezoelectric layer 70 provided on the lower electrode 60 and an upper electrode 80 provided on the piezoelectric layer 70. The piezoelectric layer 70 of each of the piezoelectric elements 300 has a thickness relatively larger in its both end side than in its center portion, in a cross section in a short hand direction of the piezoelectric element 300. COPYRIGHT: (C)2008,JPO&INPIT