Abstract:
An electronic component embedded printed circuit board includes a core having a cavity; an electronic component inserted in the cavity; insulating layers laminated on top and bottom of the core and mixed with a coupling agent, which has functional groups respectively acting on an organic material and an inorganic material, to be bonded to an outer peripheral surface of the electronic component; and circuit patterns provided on the insulating layers.
Abstract:
The present invention relates to a conductive paste in which fine metal particles are dispersed into a chemical adsorption liquid produced from a mixture of at least an alkoxysilane compound, a silanol condensation catalyst, and a nonaqueous organic solvent to form an organic thin film comprising molecules covalently bound to the surface of the fine metal particle by having the surface of the fine metal particle react with the alkoxysilane compound, so that fine metal particles that are given a reactive function to the surface are produced while almost maintaining the original conductivity of the fine metal particles, and further the particles are pasted with an organic solvent.
Abstract:
The present invention provides an anisotropic conductive material in which lower continuity resistance and higher adhesive strength are obtained, and a method for manufacturing the same. When a glass substrate and a metal wiring material are thermally compressed and bonded, in an interface between the glass substrate and an anisotropic conductive material, Si on a surface of the glass substrate reacts on an alkoxyl group (OR) at an end of disulfide silane modified by hydrophobic silica, and chemically binds thereto. Furthermore, at an interface between the metal wiring material and the anisotropic conductive material, a part of S—S bonds (disulfide bonds) in disulfide silane dissociates due to the heat at the time of thermocompression bonding, and the dissociated sulfide silane chemically binds to metal Me.
Abstract:
The present invention relates to a resin composition which includes a copolymer consisting of a first monomer containing a monomer unit having at least one carboxyl group and a second monomer copolymerizable with the first monomer, and also includes an ultraviolet absorber. The resin composition used is a resin composition for which, when ∈1 represents an absorbance coefficient per unit weight of a resin film 2 in a solution prepared by dissolving, in a solvent, the resin film 2 formed by application of the resin composition as a liquid, ∈1 at a light wavelength at which the resin film 2 is to be irradiated is at least 0.01 (L/(g·cm)).
Abstract:
A glass wiring board is provided that includes a glass substrate and a primer layer. The prime layer is disposed on the glass substrate and includes an intermediate layer and a copper plating layer disposed on the intermediate layer. The intermediate layer includes a resin coupling agent and a metal element dispersed in the resin coupling agent.
Abstract:
Provided are methods of forming thermally conductive flexible bonds for use in electronic boards of unmanned spacecrafts and other types of aircraft. Also provided are methods of preparing adhesive materials to form these bonds including methods of preparing treated filler particles. In some aspects, an adhesive material includes filler particles having organofunctional groups, such as boron nitride particles treated in silane. These particles may be combined with a urethane modified epoxy to form the adhesive material. The weight ratio of the particles in the adhesive material may be about 40-60%. The adhesive material may be thermally cured using a temperature of less than 110° C. to prevent damage to bonded electronic components. The cured adhesive may have a thermal conductivity of at least about 2 W/m K measured in vacuum and may have a glass transition temperature if less than −40° C.
Abstract:
There are provided a method for producing a transfer structure, in which detachment between a transfer-receiving material and a matrix can be easily achieved without destroying the fine pattern, the transfer pattern of the matrix is satisfactorily transferred to the transfer-receiving material, and the durability of the matrix is maintained for a long time during repeated transfer; and a matrix for use in the method. A film of a silane coupling agent represented by the following formula (I) is formed on a surface of a matrix having a transfer pattern formed on the surface thereof, a transfer-receiving material is applied thereon to transfer the pattern on the surface of the matrix, and the transfer-receiving material is detached from the matrix to obtain a transfer structure formed of the transfer-receiving material. In formula (I), n represents an integer of 8, 10, 12 or 14; m represents an integer of 3 or 4; and X, Y and Z each independently represent a hydrolyzable group that is a methoxy group, an ethoxy group, a propoxy group, an isopropoxy group, or a halogen atom.
Abstract:
This invention relates to an epoxy resin composition for an insulating film, an insulating film, and a printed circuit board including the same. Particularly in a printed circuit board using a build-up process, a skin layer and a roughness are formed on the surface of the insulating film using different curing starting temperatures, so that peel strength can be enhanced, thus enabling the formation of a fine pattern, and also, a coefficient of thermal expansion of the insulating film is low, thus preventing the deformation of the film.
Abstract:
Provided are an insulated ultrafine powder obtained by adding liquid metal alkoxide to a methanol-containing organic solvent in which a conductive ultrafine powder comprising a carbon material is dispersed and further adding water thereto and a method for producing the same. Also, provided are an insulated ultrafine powder obtained by adding liquid metal alkoxide to a methanol-containing organic solvent in which a conductive ultrafine powder comprising a carbon material is dispersed, further adding a coupling agent having an alkoxide group and then adding water thereto and a method for producing the same. Further, provided is a high dielectric constant resin composite material obtained by blending the insulated ultrafine powder of the present invention with a resin in a volume ratio (insulated ultrafine powder/resin) falling in a range of 5/95 to 50/50.
Abstract:
The present invention provides an anisotropic conductive material in which lower continuity resistance and higher adhesive strength are obtained, and a method for manufacturing the same. When a glass substrate and a metal wiring material are thermally compressed and bonded, in an interface between the glass substrate and an anisotropic conductive material, Si on a surface of the glass substrate reacts on an alkoxyl group (OR) at an end of disulfide silane modified by hydrophobic silica, and chemically binds thereto. Furthermore, at an interface between the metal wiring material and the anisotropic conductive material, a part of S—S bonds (disulfide bonds) in disulfide silane dissociates due to the heat at the time of thermocompression bonding, and the dissociated sulfide silane chemically binds to metal Me.