Abstract:
A resin composition for sealing of the present invention contains an epoxy resin (A), a curing agent (B), an inorganic filler (C), and a compound (D) represented by Formula (1). In Formula (1), R 1 represents a polar group or a hydrocarbon group. An electronic component device (10) of the present invention has an electronic component (11) and a sealing material (12) sealing the electronic component (11), in which the sealing material (12) is a cured substance of the resin composition for sealing.
Abstract:
A semiconductor package includes a semiconductor chip mounted on a substrate, an insulating layer covering at least a portion of the semiconductor chip and including a thixotropic material or a hot melt material, and a shielding layer covering at least a portion of the semiconductor chip and the insulating layer. A method of manufacturing the semiconductor package includes forming an insulating layer and a shielding layer having a high aspect ratio by using a three-dimensional printer.
Abstract:
A material contains a curable liquid polymer containing suspended nanoparticles capable of exhibiting a magnetic property. The nanoparticles are present in a concentration sufficient to cause the curable liquid polymer to flow in response to application of a magnetic field, enabling the material to be guided into narrow regions to completely fill such regions prior to the polymer being cured. A method includes applying a filler material to at least one component, the filler material including a heat curable polymer containing nanoparticles, and applying an electromagnetic field to at least part of the filler material. The nanoparticles contain a core capable of experiencing localized heating sufficient to at least partially cure surrounding polymer. Also disclosed is an assembly for use at radio frequencies. The assembly includes a substrate and at least one component supported by the substrate. The substrate contains a thermoplastic or thermoset polymer with suspended nanoparticles capable of exhibiting a magnetic property. The nanoparticles are of a type and have a concentration in the polymer selected to provide a certain dielectric permittivity, magnetic permeability and dissipation factor.
Abstract:
The present invention provides a resin composition including: (A) a silicone resin containing a constitutional unit shown by the following composition formula (1) and having a weight average molecular weight of 3,000 to 500,000; (B) an epoxy resin-curing agent; and (C) a filler; wherein the mass fraction of the component (C) is 50 to 95% by mass based on the total mass. This can provide a resin composition that can mold a wafer in a lump, has good molding properties particularly to a thin-film wafer having a large diameter, gives low-warping properties, as well as good wafer protection properties, high reliability, and good heat resistance after molding, can perform a molding process favorably, and can be used for wafer level packaging favorably.
Abstract:
A resin composition for semiconductor encapsulation, containing (A) an epoxy resin, (B) a phenolic resin-based curing agent, (C) an inorganic filler, and (D) amorphous carbon, wherein the amorphous carbon of the component (D) contains 30 atomic% or more of an SP 3 structure and 55 atomic% or less of an SP 2 structure.
Abstract:
- Matériau de leurrage ultrasonore, en particulier pour système d'arme. - Le matériau (1) de leurrage ultrasonore comprend au moins une résine (2), ainsi qu'une pluralité de billes creuses (4) noyées dans ladite résine (2), de manière à créer un matériau d'enrobage de masse réduite, apte à rendre inopérant une analyse par détection ultrasonore.
Abstract:
The present invention provides a carbon-coated thermal conductive material which can improve water resistance, oxidation resistance, and dispersibility at the time of being kneaded with a resin while maintaining excellent thermal conductive performance. The present invention is a carbon-coated thermal conductive material having a coating layer composed of amorphous carbon on the surface of a thermal conductive material, in which the thermal conductive material is composed of a metal oxide, a metal nitride, a metal material, or a carbon-based material having a thermal conductivity of 10 W/mK or greater; the amorphous carbon is derived from carbon contained in an oxazine resin; in a case where the amorphous carbon is analyzed by Raman spectroscopy, a ratio of a peak intensity of a G band to a peak intensity of a D band is 1.0 or greater; an average film thickness of the coating layer is 500 nm or less; and a coefficient of variation (CV value) of a film thickness of the coating layer is 15% or less.
Abstract:
In order to provide a sealing sheet capable of preventing same from falling off a suction collet during conveyancing, etc., and whereby semiconductor chips can be suitably buried, the sum α of a thickness t [mm] and a storage elastic modulus G' [Pa] at 50°C, for this sealing sheet, fulfils 300 ≤ α ≤ 1.5 × 10 5 .