摘要:
To provide ferroelectric film laminated bodies with few crystal defects and having excellent characteristics. A ferroelectric film laminated body includes an electrode and a PZT system ferroelectric film formed on the electrode. In the ferroelectric film, Nb replaces Ti composition by 2.5 mol % or more but 40 mol % or less, and the electrode does not include almost any oxygen that diffuses from the ferroelectric film.
摘要:
To provide ferroelectric films with which highly reliable ferroelectric devices can be obtained. A ferroelectric film comprised of a perovskite structure ferroelectric shown by ABO3, including at least one type of Si2+, Ge2+ and Sn2+ as an A site doping ion, and at least Nb5+ as a B site doping ion.
摘要:
A piezoelectric film is provided having good piezoelectric properties. The piezoelectric film is represented by the following general formula: A1-bB1-aXaO3 wherein A contains Pb; B is at least one of Zr and Ti; X is at least one of V, Nb, Ta, Cr, Mo and W; a satisfies 0.05≦a≦0.3; and b satisfies 0.025≦b≦0.15.
摘要翻译:提供具有良好的压电性能的压电膜。 压电膜由以下通式表示:A 1-b B 1-a X a O 3 3 / >其中A含有Pb; B是Zr和Ti中的至少一种; X是V,Nb,Ta,Cr,Mo和W中的至少一种; a满足0.05 <= a <= 0.3; 并且b满足0.025≤b≤0.15。
摘要:
A bismuth silicate film (insulating film) 3 of Bi2SiO5 oriented predominantly in the direction of (100) is formed on a Si substrate 2 and a ferroelectric thin film 4 is formed on the bismuth silicate film 3 to create an MFIS structure having a c-axis-oriented ferroelectric thin film 4 formed with good reproducibility. A highly reliable thin film device is produced by applying the MFIS structure to a FET.
摘要:
A ferroelectrics thin-film coated substrate is manufactured in a low-temperature process by using a ferroelectrics having a dense and even surface and exhibiting a large residual spontaneous polarization. A ferroelectrics thin-film coated substrate has a structure with a buffer layer, a growth layer allowing a ferroelectrics thin-film to grow, and a ferroelectrics thin-film made of a ferroelectric material having a layered crystalline structure expressed in the chemical formula Bi.sub.2 A.sub.m-1 B.sub.m O.sub.3m+3 (A is selected from Na.sup.1+, K.sup.1+, Pb.sup.2+, Ca.sup.2+, Sr.sup.2+, Ba.sup.2+, Bi.sup.3+ and the like, B is selected from Fe.sup.3+, Ti.sup.4+, Nb.sup.5+, Ta.sup.5+, W.sup.6+ and Mo.sup.6+, and m is an integer not less than 1) formed in succession.
摘要:
A ferroelectric thin film coated substrate is obtained by a producing method of forming a crystalline thin film on a substrate by means of a MOCVD method at a substrate temperature at which crystal grows and of forming a ferroelectric thin film on the crystalline thin film by means of the MOCVD method at a film forming temperature, which is lower than the film forming temperature of the crystalline thin film. This producing method makes it possible to produce a ferroelectric thin film, where a surface of the thin film is dense and even, leakage current properties are excellent and sufficiently large remanent spontaneous polarization is shown, at a lower temperature.
摘要:
To produce a ferroelectric film formed of a lead-free material. The ferroelectric film according to an aspect of the present invention includes a (K1−XNaX)NbO3 film or a BiFeO3 film having a perovskite structure and a crystalline oxide preferentially oriented to (001) formed on at least one of the upper side and lower side of the (K1−XNaX)NbO3 film or BiFeO3 film, and X satisfies the formula below 0.3≦X≦0.7.
摘要:
To provide a method for manufacturing a ferroelectric film formed of a lead-free material. The method for manufacturing a ferroelectric film according to an aspect of the present invention is a method for manufacturing a ferroelectric film including the steps of pouring a sol-gel solution for forming (K1-XNaX)NbO3 into a mold 3, calcining the sol-gel solution to form a (K1-XNaX)NbO3 material film inside the mold 3, heat-treating and crystallizing the (K1-XNaX)NbO3 material film in an oxygen atmosphere to form a (K1-XNaX)NbO3 crystallized film inside the mold 3 and removing the mold 3 through etching, and is characterized in that the mold 3 is more easily etched than the (K1-XNaX)NbO3 crystallized film and the X satisfies a formula below 0.3≦X≦0.7.
摘要:
A droplet ejection device includes a pressure chamber that includes a cavity surrounded by a side wall and a bottom wall, a deformable substrate that is provided above the pressure chamber to cover the cavity and that is parallel to the bottom wall, a magnetic body having an opening that is provided above the deformable substrate and that is fixed to the deformable substrate, and a coil that is disposed above the deformable substrate, that surrounds the magnetic body, and that is fixed to a fixing portion provided above the side wall.
摘要:
A droplet ejection device includes: a substrate having first, second, third & fourth pressure chambers extending in a first direction; a nozzle plate below the substrate & having first, second, third & fourth nozzle apertures continuous with first, second, third & forth pressure chambers, respectively; a vibration plate above the substrate; first, second, third & fourth piezoelectric elements above the vibration plate & above first, second, third & fourth pressure chambers. wherein, viewed in a second direction orthogonal to the first direction, the first nozzle aperture positioned to overlap the third nozzle aperture & doesn't overlap the second & fourth nozzle apertures; the second nozzle aperture overlaps the fourth nozzle aperture & doesn't overlap the first & third nozzle apertures, viewed in the second direction; the first piezoelectric element positioned to overlap the third piezoelectric element & doesn't overlap the second & fourth piezoelectric elements, viewed in the second direction; & the second piezoelectric element overlaps the fourth piezoelectric element & doesn't overlap the first & third piezoelectric elements.