摘要:
Each of the step of forming a first variable resistance layer (18a) and the step of forming a second variable resistance layer (18b) includes performing a cycle once or plural times, the cycle consisting of a first step of introducing a source gas composed of molecules containing atoms of a transition metal; a second step of removing the source gas after the first step; a third step of introducing a reactive gas to form a transition metal oxide after the second step; and a fourth step of removing the reactive gas after the third step. The step of forming the first variable resistance layer (18a) is performed in a state in which the substrate is kept at a temperature at which a self-decomposition reaction of the source gas does not occur. One or plural of conditions used for forming the second variable resistance layer (18b) is/are made different from the one or plural conditions used for forming the first variable resistance layer (18a), the conditions being the temperature of the substrate, an amount of the introduced source gas and an amount of the introduced reactive gas.
摘要:
A resistance variable element of the present invention comprises a first electrode (103), a second electrode (107), and a resistance variable layer which is interposed between the first electrode (103) and the second electrode (107) to contact the first electrode (103) and the second electrode (107), the resistance variable layer being configured to change in response to electric signals with different polarities which are applied between the first electrode (103) and the second electrode (107), the resistance variable layer comprising an oxygen-deficient transition metal oxide layer, and the second electrode (107) comprising platinum having minute hillocks (108).
摘要:
A nonvolatile memory apparatus includes a first electrode, a second electrode, a variable resistance layer, a resistance value of the variable resistance layer reversibly varying between a plurality of resistance states based on an electric signal applied between the electrodes. The variable resistance layer includes at least a tantalum oxide, and is configured to satisfy 0
摘要:
Provided is a nonvolatile memory device which requires a lower initializing voltage such that the nonvolatile memory device can be operated at a low voltage. The nonvolatile memory device (10) includes: a first electrode layer (105) formed above a semiconductor substrate (100); a first oxygen-deficient tantalum oxide layer (106x) formed on the first electrode layer (105) and having a composition represented by TaOx where 0.8≦x≦1.9; a second oxygen-deficient tantalum oxide layer (106y) formed on the first oxygen-deficient tantalum oxide layer (106x) and having a composition represented by TaOy where 2.1≦y; and a second electrode layer (107) formed on the second tantalum oxide layer (106y). The second tantalum oxide layer (106y) has a pillar structure including a plurality of pillars.
摘要:
A resistance variable element (10), a resistance variable memory apparatus, and a resistance variable apparatus, comprise a first electrode (2), a second electrode (4), and a resistance variable layer (3) which is disposed between the first electrode (2) and the second electrode (4) and is electrically connected to the first electrode (2) and to the second electrode (4), wherein the resistance variable layer (3) contains a material having a spinel structure which is expressed as a chemical formula of (NixFe1-x) Fe2O4, X being not smaller than 0.35 and not larger than 0.9, wherein the resistance variable element has a characteristic in which an electric resistance between the first electrode (2) and the second electrode (4) decreases by application of a first voltage pulse having a first voltage between the first electrode (2) and the second electrode (4) and increases by application of a second voltage pulse having a second voltage which is different in polarity from the first voltage between the first electrode (2) and the second electrode (4).
摘要:
A resistance variable element comprises a first electrode (2), a second electrode (4), and a resistance variable layer (3) which is disposed between the first electrode and the second electrode, and electrically connected to the first electrode and the second electrode, wherein the resistance variable layer comprises material including TaOX (1.6≦X≦2.2), an electric resistance between the first electrode and the second electrode is lowered by application of a first voltage pulse having a first voltage between the first electrode and the second electrode, and the electric resistance between the first electrode and the second electrode is increased by application of a second voltage pulse having a second voltage of the same polarity as the first voltage, between the first electrode and the second electrode.
摘要:
A resistance variable element (10), a resistance variable memory apparatus, and a resistance variable apparatus, comprise a first electrode (2), a second electrode (4), and a resistance variable layer (3) which is disposed between the first electrode (2) and the second electrode (4) and is electrically connected to the first electrode (2) and to the second electrode (4), wherein the resistance variable layer (3) contains a material having a spinel structure which is expressed as a chemical formula of (NixFe1-x) Fe2O4, X being not smaller than 0.35 and not larger than 0.9, wherein the resistance variable element has a characteristic in which an electric resistance between the first electrode (2) and the second electrode (4) decreases by application of a first voltage pulse having a first voltage between the first electrode (2) and the second electrode (4) and increases by application of a second voltage pulse having a second voltage which is different in polarity from the first voltage between the first electrode (2) and the second electrode (4).
摘要:
A resistance variable element of the present invention and a resistance variable memory apparatus using the resistance variable element are a resistance variable element (10) including a first electrode, a second electrode, and a resistance variable layer (3) provided between the first electrode (2) and the second electrode (4) to be electrically connected to the first electrode (2) and the second electrode (4), wherein the resistance variable layer (3) contains a material having a spinel structure represented by a chemical formula of (ZnxFe1-x)Fe2O4, and the resistance variable element (10) has a feature that an electrical resistance between the first electrode (2) and the second electrode (4) increases by applying a first voltage pulse to between the first electrode (2) and the second electrode (4), and the electrical resistance between the first electrode (2) and the second electrode (4) decreases by applying a second voltage pulse whose polarity is the same as the first voltage pulse to between the first electrode (2) and the second electrode (4), and a resistance variable memory apparatus using the resistance variable element (10).
摘要翻译:本发明的电阻可变元件和使用该电阻可变元件的电阻变化存储装置是包括第一电极,第二电极和电阻变化层(3)的电阻变化元件(10) 2)和与第一电极(2)和第二电极(4)电连接的第二电极(4),其中电阻变化层(3)包含具有由以下化学式表示的尖晶石结构的材料:( Zn x Fe 1-x)Fe 2 O 4,并且电阻可变元件(10)具有通过在第一电极(2)和第二电极(2)之间施加第一电压脉冲来增加第一电极(2)和第二电极 和第二电极(4),并且第一电极(2)和第二电极(4)之间的电阻通过施加极性与第一电压脉冲相同的第二电压脉冲而减小 (2)和第二电极(4)之间,以及使用该电阻变化元件(10)的电阻变化存储装置。
摘要:
In a piezoelectric element, a cubic or tetragonal orientation control layer (15) is provided on a first electrode layer (14), and formed on the orientation control layer (15) is a piezoelectric layer (16) having a rhombohedral or tetragonal crystalline structure and made of lead zirconate titanate to which a Pb-containing complex perovskite compound expressed by the chemical formula Pb(AaBb)O3 has been added in an amount that is from 1 mol % to 50 mol %. The piezoelectric layer (16) is formed so that the crystal grains thereof become columnar grains which extend in the thickness direction of the piezoelectric layer (16) and in which the ratio of the average cross-sectional diameter to the length is from 1/50 to 1/14.
摘要翻译:在压电元件中,在第一电极层(14)上设置立方或四方取向控制层(15),并且在取向控制层(15)上形成具有菱形或四边形晶体结构的压电层(16) 并由化学式Pb(A a B b B b)O 3表示的含Pb复合钙钛矿化合物的锆钛酸铅制成, 的添加量为1摩尔%〜50摩尔%。 形成压电体层16,使其晶粒成为在压电体层16的厚度方向上延伸的柱状晶粒,其平均截面直径与长度的比率为1/50 到1/14。
摘要:
A head support mechanism includes a head and a slider for carrying the head, the head being caused to track by main driver, wherein the head support mechanism further includes sub-driving device including a thin film and causing the head to have a micro-movement; and the sub-driving device causes the head to have a micro-movement by utilizing flexural deformation of the thin film.