Abstract:
PROBLEM TO BE SOLVED: To provide a composition for formation of a LaNiOthin film superior in an electric property, and usable for an electrode film of a capacitor for ferroelectric memory use, a piezoelectric element or the like, or an electrode film of a pyroelectric infrared light detection element or the like per se, by which the crystal of a dielectric layer formed on the film of a thin film capacitor or the like can be easily (100)plane-oriented by priority.SOLUTION: A composition for formation of a LaNiOthin film comprises: a LaNiOprecursor; and an acetic acid. In the composition, the LaNiOprecursor accounts for 1-20 mass% to 100 mass% of the composition in terms of oxides. The composition further comprises a stabilizer of N-methyl formamide in proportion of more than 0 up to 10 moles to a total of one mole of the LaNiOprecursor.
Abstract:
PROBLEM TO BE SOLVED: To provide a chip type multilayer capacitor that achieves size reduction and higher capacity while reducing acoustic noise.SOLUTION: A chip type multilayer capacitor according to an embodiment of the present invention comprises: a ceramic main body including a stack of dielectric layers each formed with a thickness of 3 μm or less, which is greater than or equal to 10 times of the average size of a grain; first and second external electrodes having different polarities from each other and formed at both ends of the ceramic main body in the length direction; a first internal electrode having one end forming a first margin with one end face of the ceramic main body to be provided with the second external electrode, and the other end being extracted by the first external electrode; and a second internal electrode having one end forming a second margin with the other end face of the ceramic main body to be provided with the first external electrode, and the other end being extracted by the second external electrode. The first margin and the second margin have different widths under a condition within 200 μm.
Abstract:
PROBLEM TO BE SOLVED: To provide a barium titanate semiconductor ceramic composition suitably used for a PTC (positive temperature coefficient) thermistor having a low resistance and a high withstand voltage usable for a large load such as an overcurrent protection element for an OA (office automation) instrument and a motor. SOLUTION: The composition comprises barium titanate as a major component and calcium titanate of 0.05-0.20 mol, strontium titanate of 20-30 mol, manganese oxide of 0.05-0.15 mol, silicon oxide of 2.5-3.5 mol, and an oxide of rare-earth element as a semiconducting agent of 0.25-0.30 mol based on barium titanate of 100 mol. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
The present invention relates to forming the material represented by the following formula (1) into a layer having hexagonal crystalline structure, which is different from the orthorhombic crystalline structure of the material in bulk phase, so that the material can be used more effectively in various fields requiring multiferroic properties by obtaining multiferroic properties enhanced than the conventional multiferroic materials. RMnO3, (R=Lanthanide) . . . (1)