摘要:
A method of manufacturing a ceramic includes forming a film which includes a complex oxide material having an oxygen octahedral structure and a paraelectric material having a catalytic effect for the complex oxide material in a mixed state, and performing a heat treatment to the film, wherein the paraelectric material is one of a layered catalytic substance which includes Si in the constituent elements and a layered catalytic substance which includes Si and Ge in the constituent elements. The heat treatment includes sintering and post-annealing. At least the post-annealing is performed in a pressurized atmosphere including at least one of oxygen and ozone. A ceramic is a complex oxide having an oxygen octahedral structure, and has Si and Ge in the oxygen octahedral structure.
摘要:
A ferroelectric film is formed by an oxide that is described by a general formula AB1−xNbxO3. An A element includes at least Pb, and a B element includes at least one of Zr, Ti, V, W, Hf and Ta. The ferroelectric film includes Nb within the range of: 0.05≦x
摘要翻译:铁氧体膜由通式AB 1-x N x O 3 O 3所描述的氧化物形成。 A元素至少包含Pb,B元素包括Zr,Ti,V,W,Hf和Ta中的至少一种。 铁电体膜包括在0.05 <= x <1的范围内的Nb。 铁电薄膜可用于1T1C,2T2C和简单矩阵类型的铁电存储器。
摘要:
A method of manufacturing a ceramic film includes forming the ceramic film by crystallizing a ceramic raw material liquid which includes a first raw material liquid and a second raw material liquid. The first raw material liquid and the second raw material liquid are different types of liquids, the first raw material liquid is a raw material liquid for producing a ferroelectric, the second raw material liquid is a raw material liquid for producing an oxide such as an ABO-type oxide, a solvent included in the first raw material liquid and a solvent included in the second raw material liquid have different polarities, and the ceramic film is formed in a state in which the first raw material liquid and the second raw material liquid are phase separated so that first crystals formed of the first raw material liquid are intermittently formed in a surface direction of the ceramic film and second crystals formed of the second raw material liquid are formed so as to interpose between the first crystals.
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 lower electrode is formed over a substrate, and a raw material including a complex oxide is heated in an atmosphere pressurized to two atmospheres or more and containing oxygen at a volume ratio of 10% or less at a temperature raising rate of 100° C./min or less, thereby forming a lower alloy film of a compound of a first metal which makes up the complex oxide, and a second metal, which makes up the lower electrode, over the lower electrode. A ceramic film in which the raw material is crystallized is formed over the lower alloy film, and an upper electrode is formed over the ceramic film.
摘要:
A method of manufacturing a ferroelectric capacitor. In this method, a lower electrode is formed on a base at first. A ferroelectric film which includes a PZTN complex oxide including lead, zirconium, titanium, and niobium on the lower electrode is formed, and then an upper electrode is formed on the ferroelectric film. A protective film is then formed to cover the lower electrode, the ferroelectric film, and the upper electrode, and heat treatment for crystallizing the PZTN complex oxide is performed at least after forming the protective film.
摘要:
A ferroelectric film is formed by an oxide that is described by a general formula AB1-xNbxO3. An A element includes at least Pb, and a B element includes at least one of Zr, Ti, V, W, Hf and Ta. The ferroelectric film includes Nb within the range of: 0.05≦x
摘要:
A method of manufacturing a ceramic film includes forming the ceramic film by crystallizing a ceramic raw material liquid which includes a first raw material liquid and a second raw material liquid. The first raw material liquid and the second raw material liquid are different types of liquids, the first raw material liquid is a raw material liquid for producing a ferroelectric, the second raw material liquid is a raw material liquid for producing an oxide such as an ABO-type oxide, a solvent included in the first raw material liquid and a solvent included in the second raw material liquid have different polarities, and the ceramic film is formed in a state in which the first raw material liquid and the second raw material liquid are phase separated so that first crystals formed of the first raw material liquid are intermittently formed in a surface direction of the ceramic film and second crystals formed of the second raw material liquid are formed so as to interpose between the first crystals.
摘要:
A ferroelectric memory includes a substrate and a sheet-shaped device formed over the substrate through an adhesive layer. The sheet-shaped device includes a memory cell array in which a ferroelectric layer is disposed at least in intersecting regions of a plurality of lower electrodes and a plurality of upper electrodes which are formed in the shape of lines, and a peripheral circuit section for the memory cell array.
摘要:
A method of manufacturing a ceramic includes forming a film which includes a complex oxide material having an oxygen octahedral structure and a paraelectric material having a catalytic effect for the complex oxide material in a mixed state, and performing a heat treatment to the film, wherein the paraelectric material is one of a layered catalytic substance which includes Si in the constituent elements and a layered catalytic substance which includes Si and Ge in the constituent elements. The heat treatment includes sintering and post-annealing. At least the post-annealing is performed in a pressurized atmosphere including at least one of oxygen and ozone. A ceramic is a complex oxide having an oxygen octahedral structure, and has Si and Ge in the oxygen octahedral structure.