摘要:
Even if sizes of storage cells are reduced in a phase change memory, properties of the respective storage cells can be set to be approximately equal to one another and a current amount required for phase change can be reduced sufficiently. The phase change memory includes at least a storage cell. The storage cell includes a first electrode, an electrically conductive portion provided on the first electrode and having at least two electrically conductive bodies with approximately the same shape provided on the first electrode, the electrically conductive bodies being spaced by a high resistance film with a high resistance, a recording layer provided on the electrically conductive portion and having phase change material which can change between a first phase state with a first specific resistance and a second phase state with a second specific resistance different from the first specific resistance, and a second electrode provided on the recording layer.
摘要:
A phase change memory including at least a storage cell which includes a first electrode, an electrically conductive portion provided on the first electrode and having at least two electrically conductive bodies with approximately the same shape provided on the first electrode, the electrically conductive bodies being spaced by a high resistance film with a high resistance, a recording layer provided on the electrically conductive portion and having phase change material which can change between a first phase state with a first specific resistance and a second phase state with a second specific resistance different from the first specific resistance, and a second electrode provided on the recording layer.
摘要:
Even if sizes of storage cells are reduced in a phase change memory, properties of the respective storage cells can be set to be approximately equal to one another and a current amount required for phase change can be reduced sufficiently. The phase change memory includes at least a storage cell. The storage cell includes a first electrode, an electrically conductive portion provided on the first electrode and having at least two electrically conductive bodies with approximately the same shape provided on the first electrode, the electrically conductive bodies being spaced by a high resistance film with a high resistance, a recording layer provided on the electrically conductive portion and having phase change material which can change between a first phase state with a first specific resistance and a second phase state with a second specific resistance different from the first specific resistance, and a second electrode provided on the recording layer.
摘要:
According to one embodiment, a conductive material includes a carbon substance and a metallic substance mixed with and/or laminated to the carbon substance. The carbon substance has at least one dimension of 200 nm or less. The carbon substance includes a graphene selected from single-layered graphene and multi-layered graphene, a part of carbon atoms constituting the graphene is substituted with a nitrogen atom. The metallic substance includes at least one of a metallic particle and a metallic wire.
摘要:
According to one embodiment, there is provided a catalyst layer containing a catalyst material. The catalyst layer satisfying requirements below: a porosity of 20 to 90% by vol; and a relation R1≧R0×1.2. In the above inequality, R1 represents an alignment ratio of the catalyst layer and R0 represents an alignment ratio of the catalyst material in powder form having a random crystalline plane distribution, and each of the alignment ratios is calculated from a X-ray diffraction spectrum having a diffraction angle 2θ range from 10 to 90 degree measured using Cu-Kα-rays.
摘要:
A nonvolatile storage device includes a plurality of bit lines 21 arranged in a column direction on a substrate; a plurality of word lines 35 arranged in a row direction on the substrate; a memory cell array 20 having a plurality of memory cells 31, where a store state of each of the memory cells 31 changes according to an electric signal relatively applied to the word line 35 and the bit line 21; a word line selection unit having a needle 51 relatively movable with respect to the substrate which comes into contact with one word line 35, setting the word line 35 in contact with the needle 51 to a selection state; and a sense amplifier 48 detecting through the bit line an electrical signal exhibiting the store state of the memory cell 31 to be connected to the word line.
摘要:
A nonvolatile storage device includes a plurality of bit lines 21 arranged in a column direction on a substrate; a plurality of word lines 35 arranged in a row direction on the substrate; a memory cell array 20 having a plurality of memory cells 31, where a store state of each of the memory cells 31 changes according to an electric signal relatively applied to the word line 35 and the bit line 21; a word line selection unit having a needle 51 relatively movable with respect to the substrate which comes into contact with one word line 35, setting the word line 35 in contact with the needle 51 to a selection state; and a sense amplifier 48 detecting through the bit line an electrical signal exhibiting the store state of the memory cell 31 to be connected to the word line.
摘要:
A recording medium includes a substrate, and a recording layer formed on the substrate having (a) a recording track band, and (b) recording cells regularly arrayed in the recording track band to form a plurality rows of sub-tracks. The recording cells included in each sub-track are formed apart from each other at a pitch P in the track direction. Nearest neighboring two recording cells, each positioned on adjacent two sub-tracks in the track band, are formed apart from each other at a pitch P/n in the track direction, where 2≦n≦5.
摘要翻译:记录介质包括基板和形成在基板上的记录层,具有(a)记录轨道带,以及(b)定期排列在记录轨道带中的记录单元以形成多行子轨道。 包括在每个子轨道中的记录单元以轨道方向上的间距P彼此分开地形成。 最靠近的两个记录单元分别位于轨道带中相邻的两个子轨道上,以轨道方向上的间距P / n彼此分开,其中2 <= n <= 5。
摘要:
A magnetic recording media has a magnetic recording layer including recording track regions including recording cells of magnetic dots arrayed in a down-track direction and forming plural rows in a cross-track direction, and a nonmagnetic layer filled in recesses between the recording cells, and separation regions of a nonmagnetic layer, separating the recording track regions, and a lubricant applied to a surface of the magnetic recording layer, in which grooves are formed on a surface of the nonmagnetic layer in the separation regions so as to be recessed by 2 to 10 nm with respect to a surface of the nonmagnetic layer in the recording track regions, and in which the lubricant is applied to the surface of the magnetic recording layer so as to be filled in the grooves.
摘要:
A recording medium has a substrate and a recording layer having isolation regions including crossed linear regions and substantially polygonal sections defined by the crossed linear regions, each of the sections containing particles of a recording material arrayed in a regular lattice. The linear regions of the isolation regions are formed along lowest-indexed planes of the regular lattice formed by the particles of the recording material.