Abstract: The present invention relates to a process for producing a structure having holes at prescribed positions. The structure is produced through steps of (A) providing an impressing member having protrusions, and a substrate, (B) forming a layer, on the substrate, from a material having a less strength than the impressing member, (C) forming depressions by impressing the impressing member on the layer corresponding to protrusions of the impressing member, (D) etching the layer to bare at least a part of the surface of the substrate, and (E) anodizing the substrate to form holes on the substrate.

Abstract: A process for producing a nano-structure is provided which enables control of the pore diameters and the pore intervals by film formation conditions. The process produces a nano-structure of an aluminum-silicon-germanium mixed film containing silicon and germanium at a content of 20 to 70 atom % relative to aluminum, the mixed film being constituted of a matrix composed mainly of silicon and germanium in a composition ratio of SixGe1-x (0?X?1), and cylindrical portions mainly composed of aluminum having a diameter of not larger 30 nm in the matrix. In the process, the mixed film is formed at a film-forming rate of not higher than 150 nm/min.

Abstract: The invention provides a structured material composed by including a noble metal, in which an oriented layer is formed on a layer containing a Group 4A metal. The invention enables to form an oriented layer, which has required a high temperature for formation, by a low temperature process.

Abstract: A light-emitting device is provided that is excellent in light emission efficiency and stability. The light-emitting device has a first part of a first dielectric constant, a second part of a second dielectric constant and a third part of a third dielectric constant, and has a triple junction where they are in contact with one another. Moreover, a first and a second electrode are provided for applying a voltage for controlling an electric field at the triple junction and in the vicinity thereof. Further, at least one of the first, the second and the third parts is a constituted by light-emitting material, and the triple junction forms a closed line.

Abstract: A light-emitting device is provided that is excellent in light emission efficiency and stability. The light-emitting device has a first part of a first dielectric constant, a second part of a second dielectric constant and a third part of a third dielectric constant, and has a triple junction where they are in contact with one another. Moreover, a first and a second electrode are provided for applying a voltage for controlling an electric field at the triple junction and in the vicinity thereof. Further, at least one of the first, the second and the third parts is a constituted by light-emitting material, and the triple junction forms a closed line.

Abstract: An electronic device including a pair of electrodes disposed on a substrate and carbon nanotubes electrically connecting the electrodes. A method for manufacturing this device in which the electrodes are disposed on the substrate and the nanotubes are prepared to electrically connect the electrodes.

Abstract: An anodized coating suitable for formation of highly regulated pores is provided. A method for production of a structure having pores characterized by including the steps of: forming starting points at predetermined intervals in an aluminum alloy formed on a substrate, and forming pores by anodization with the starting points as origins. In another embodiment, first and second aluminum alloy layers are anodized to form pores penetrating into the layers, wherein a diameter of a pore in the first alloy is different from a diameter of a pore in the second alloy. In an additional embodiment, a substrate is anodized to form pores, wherein the substrate contains an additive which changes the diameter within each pore, the amount of the additive continuously changing along the direction perpendicular to the substrate.

Abstract: An electronic device in which a substrate with a pair of electrodes is provided and a carbon nanotube is formed or arranged in relation to the electrodes.

Abstract: A process of a porous body comprises the steps of disposing a first material in which pores are formed by anodization on a substrate to form a first layer, disposing on the first layer a second material which has a hardness lower than that of the first material and an oxide of which is dissolved by an anodization step to form a second layer, forming a concave structure on a surface of the second layer, oxidizing the second layer, and subjecting the first layer to anodization to dissolve the second layer. A magnetic recording medium or a light-emitting element comprises a first layer which is comprised of an oxide of aluminum and comprises a porous portion on a substrate, and a second layer on the first layer which has a hardness lower than that of the first layer and is comprised of a metal element, wherein the pores are packed with a magnetic substance or a light-emitting material.

Abstract: A method of manufacturing a dot pattern includes the steps of preparing a structured material composed of a plurality of columnar members containing a first component and a region containing a second component different from the first component surrounding the columnar members, with the structured material being formed by depositing the first component and the second component on a substrate, and removing the columnar members from the structured material to form a porous material having a columnar hole. In addition, a material is introduced into the columnar hole portions of the porous material to form a dot pattern, and the porous material is removed.

Abstract: Provided are electron-emitting devices improved in durability during concentration of an electric field and thus rarely suffering chain discharge breakdown. An electron-emitting device has an electroconductive film, a layer placed on the electroconductive film and containing aluminum oxide as a main component, a pore placed in the layer containing aluminum oxide as a main component, and an electron emitter placed in the pore and containing a material of the electroconductive film, and the electron emitter is porous and is electrically connected to the electroconductive film.

Abstract: A light-emitting material includes a matrix section 12 and light-emitting sections 11 dispersed and buried in the matrix section. The matrix section 12 comprises a first material and the light-emitting sections comprise a second material showing a eutectic relationship with the first material.

Abstract: There are provided a porous material and a process for producing the same. The porous material has a plurality of columnar pores and an area surrounding the pores, and the area is an amorphous area containing C, Si, Ge or a combination thereof.

Abstract: A method of manufacturing a dot pattern includes the steps of preparing a structured material composed of a plurality of columnar members containing a first component and a region containing a second component different from the first component surrounding the columnar members, with the structured material being formed by depositing the first component and the second component on a substrate, and removing the columnar members from the structured material to form a porous material having a columnar hole. Additional steps include introducing a mask material into the columnar hole of the porous material to form a dot pattern, and removing the porous material.

Abstract: A molding apparatus for patterning a workpiece includes a mold having a pattern to be transferred to the workpiece, with the pattern including recesses, a first support member for supporting the mold, and a second support member, arranged opposite to the first support member, for supporting the workpiece. A pressing mechanism brings the first and second support members close to each other and presses the mold and the workpiece together so as to transfer, to the workpiece, the pattern on the mold. Recessed portions are provided on at least one of a surface of the mold on the first support member side, a region of the first support member, and a region of the second support member. The recessed portions correspond to recesses in the pattern of the mold.

Abstract: A molding apparatus for patterning a workpiece includes a mold having a pattern to be transferred to the workpiece, with the pattern including recesses, a first support member for supporting the mold, and a second support member, arranged opposite to the first support member, for supporting the workpiece. A pressing mechanism brings the first and second support members close to each other and presses the mold and the workpiece together so as to transfer, to the workpiece, the pattern on the mold. Recessed portions are provided on at least one of a surface of the mold on the first support member side, a region of the first support member, and a region of the second support member. The recessed portions correspond to recesses in the pattern of the mold.

Abstract: A sensor which has high measuring sensitivity and is excellent in response is provided by forming a porous film in a sensitive section of a field-effect transistor. It comprises a porous body, which is formed on a sensitive section (here, a gate insulating film) of the field-effect transistor and has cylindrical pores which are formed almost perpendicularly to a substrate, and the field-effect transistor. It uses as a porous film a porous film which is made of a semiconductor material whose main component (except oxygen) is silicon, germanium, or a composite of silicon and germanium, or a porous film made of an insulation material whose main component is silicon oxide, which has pores perpendicular to the substrate.

Abstract: Cylinders having Al as a major constituent are orderly arrayed in an (Si, Ge) matrix. In a nanostructure in the form of a mixture film having a plurality of cylinders having Al as a major constituent, and a matrix region surrounding the plurality of cylinders and having Si and/or Ge as a major constituent, the total amount of Si and Ge is in the range from 20 to 70 atomic % in the mixture film, the cylinders are orderly arrayed, the diameter of the cylinders is in the range from 1 to 30 nm, and the interval between the cylinders is 30 nm or less.

Abstract: A magnetic device has a layer containing fine pores and having wirings on both faces of the layer formed on a substrate, wherein at least a part of the pores are filled with a layered column formed by stacking magnetic layers and nonmagnetic layers alternately, and at least a part of the pores filled with a conductive column as writing wires for writing into the magnetic layers in the adjacent pores. The fine pores may be nano-holes of alumina formed by anodic oxidation. A part of the pores may serve to intercept a magnetic field. The magnetic layer may contain Co, and the nonmagnetic layer and/or the writing wire may contain Cu. The pores may be arranged in a honeycomb arrangement or a rectangular array. The ratio of the sectional area S (cm2) of the pore and the length (cm) of the pore satisfy the relation: 105<L/S>105.

Abstract: A molding apparatus for patterning a workpiece includes a mold having a pattern to be transferred to the workpiece, with the pattern including recesses, a first support member for supporting the mold, and a second support member, arranged opposite to the first support member, for supporting the workpiece. A pressing mechanism brings the first and second support members close to each other and presses the mold and the workpiece together so as to transfer, to the workpiece, the pattern on the mold. Recessed portions are provided on at least one of a surface of the mold on the first support member side, a region of the first support member, and a region of the second support member. The recessed portions correspond to recesses in the pattern of the mold.