Abstract: The present invention relates to a nano thin-film transfer sheet comprising a permeable base, a soluble support layer, and a nano thin-film layer in this order, wherein the permeable base is a base which allows a solvent dissolving the soluble support layer to permeate or penetrate therethrough.

Abstract: There is provided a production method for an optical semiconductor device including a substrate having a silver plating layer formed on a surface and a light emitting diode bonded to the silver plating layer. The production method includes a film formation step of forming a clay film covering the silver plating layer and a connection step of electrically connecting the light emitting diode and the silver plating layer covered with the clay film by wire bonding, after the film formation step.

Abstract: An optical semiconductor device includes a substrate that has a silver plating layer formed on a surface, a light emitting diode that is bonded to the silver plating layer, a light reflecting portion that surrounds the light emitting diode, a transparent sealing portion that is filled into the light reflecting portion and seals the light emitting diode, and a clay film that covers the silver plating layer. The transparent sealing portion and the light reflecting portion are bonded to each other.

Abstract: The silver surface treatment agent of the present invention contains a layered silicate compound. The light-emitting device of the present invention comprises a substrate having a silver-plated layer; a light-emitting diode mounted on the substrate; and a film, provided on a surface of the silver-plated layer, containing a layered silicate compound.

Abstract: The present invention relates to a nano thin-film transfer sheet comprising a permeable base, a soluble support layer, and a nano thin-film layer in this order, wherein the permeable base is a base which allows a solvent dissolving the soluble support layer to permeate or penetrate therethrough.

Abstract: Provided is a film having a low refractive index, which can be formed under normal temperature and pressure while obtaining a lower refractive index, has excellent adhesion with a solid substrate, and does not lose geometric optical properties, such as the diffusibility or light-harvesting capability attributed to the microstructure. Also disclosed is a method for producing the same. The film having a low refractive index is obtained by causing an electrolyte polymer and microparticles to be alternately adsorbed on the surface of a solid substrate and bringing the resulting microparticle-laminated film into contact with a silicon compound solution in order to bond the solid substrate with microparticles and microparticles with microparticles.

Abstract: There is provided a production method for an optical semiconductor device including a substrate having a silver plating layer formed on a surface and a light emitting diode bonded to the silver plating layer. The production method includes a film formation step of forming a clay film covering the silver plating layer and a connection step of electrically connecting the light emitting diode and the silver plating layer covered with the clay film by wire bonding, after the film formation step.

Abstract: A silver-sulfidation-preventing material of the present invention comprises clay and a binder.

Abstract: An optical semiconductor device includes a substrate that has a silver plating layer formed on a surface, a light emitting diode that is bonded to the silver plating layer, a light reflecting portion that surrounds the light emitting diode, a transparent sealing portion that is filled into the light reflecting portion and seals the light emitting diode, and a clay film that covers the silver plating layer. The transparent sealing portion and the light reflecting portion are bonded to each other.

Abstract: The silver surface treatment agent of the present invention contains a layered silicate compound. The light-emitting device of the present invention comprises a substrate having a silver-plated layer; a light-emitting diode mounted on the substrate; and a film, provided on a surface of the silver-plated layer, containing a layered silicate compound.

Abstract: The present invention provides a thin film with a base, comprising a base and a thin film formed on the base, wherein the thin film comprises a layer A formed by using a solution containing a polycation; and a layer B formed by using a solution containing a polyanion and having a pH of 1.6 to 5.4.

Abstract: Provided is a film having a low refractive index, which can be formed under normal temperature and pressure while obtaining a lower refractive index, has excellent adhesion with a solid substrate, and does not lose geometric optical properties, such as the diffusibility or light-harvesting capability attributed to the microstructure. Also disclosed is a method for producing the same. The film having a low refractive index is obtained by causing an electrolyte polymer and microparticles to be alternately adsorbed on the surface of a solid substrate and bringing the resulting microparticle-laminated film into contact with a silicon compound solution in order to bond the solid substrate with microparticles and microparticles with microparticles.

Abstract: The anisotropically conductive adhesive composition according to the present invention is an anisotropically conductive adhesive composition to connect a first circuit member where a first circuit electrode is formed on the principal surface of a first substrate and a second circuit member where a second circuit electrode is formed on the principal surface of a second substrate with the first circuit electrode and the second circuit electrode placed opposite, wherein the anisotropically conductive adhesive composition comprises an adhesive and a coated particle where at least part of the surface of a conductive particle is coated with an insulating material containing a polymer electrolyte and an inorganic oxide fine particle.

Abstract: Disclosed is a coated particle (10) which is obtained by coating at least apart of the surface of a functional group-containing conductive particle (8), which has a conductive metal surface at least a part of which is provided with a functional group, with an insulating material which contains a polymer electrolyte (4) and an insulating particle (6) composed of an inorganic oxide having a hydroxy group on at least a part of the surface.

Abstract: The anisotropically conductive adhesive composition according to the present invention is an anisotropically conductive adhesive composition to connect a first circuit member where a first circuit electrode is formed on the principal surface of a first substrate and a second circuit member where a second circuit electrode is formed on the principal surface of a second substrate with the first circuit electrode and the second circuit electrode placed opposite, wherein the anisotropically conductive adhesive composition comprises an adhesive and a coated particle where at least part of the surface of a conductive particle is coated with an insulating material containing a polymer electrolyte and an inorganic oxide fine particle.

Abstract: A silica glass production process that can prevent cracks from occurring during the step of gel drying. In a process for producing silica glass, comprising the steps of subjecting a partial polycondensation product of alkoxysilane to hydrolysis in the presence of a solvent, an organic polymeric compound and a basic catalyst to form a sol, making the sol into a gel, drying the gel to form a dry gel, and firing the dry gel to obtain a glass, a salt is caused to exist in a concentration not less than 1.times.10.sup.-4 mol based on 100 g of the partial polycondensation product of alkoxysilane in the step of subjecting the partial polycondensation product of alkoxysilane to hydrolysis to form a sol.

Abstract: An information recording medium has a recording layer which comprises a composition containing:I) at least one organic polymer selected from the group consisting of:(a) conjugated polymers whose conformations change by thermal energy, for example, polythiophene, and(b) polymers containing as a component a diene monomer and/or an aromatic-ring-containing vinyl monomer, for example, polystyrene; andII) a dye having light-absorbing ability, for example, naphthalocyanine. Despite the recording layer is of the organic type that features non-toxicity and low manufacturing cost as advantages, the recording layer makes it possible to produce a rewritable optical disc which can be recorded by a semiconductor laser (830,780 nm) employed widely.

Abstract: An information recording medium has a recording layer which comprises a composition containing:I) at least one organic polymer selected from the group consisting of:(a) conjugated polymers whose conformations change by thermal energy, for example, polythiophene, and(b) polymers containing as a component a diene monomer and/or an aromatic-ring-containing vinyl monomer, for example, polystyrene; andII) a dye having light-absorbing ability, for example, naphthalocyanine. Despite the recording layer is of the organic type that features non-toxicity and low manufacturing cost as advantages, the recording layer makes it possible to produce a rewritable optical disc which can be recorded by a semiconductor laser (830, 780 nm) employed widely.