Abstract: The present invention relates to an epoxy resin composition for optical semiconductor element encapsulation, the epoxy resin composition including following components (A) to (C): (A) an epoxy resin represented by the following structural formula (1): in which n is a positive number, (B) an epoxy resin except for the epoxy resin represented by the structural formula (1), and (C) a curing agent.

Abstract: It is an object of the present invention to provide an air-cooling/tempering apparatus for glass sheet and an air-cooling/tempering method, which can properly temper a glass sheet bent to have a complexly curved surface, without increasing the heating temperature of the glass sheet or increasing a wind pressure from air-blowing openings. A lower blowing member of the air-cooling/tempering apparatus of the present invention is constituted by a plurality of blade-shaped members arranged into a comb-tooth shape each having a front end face provided with a plurality of arranged air-blowing openings. Further, each blade-shaped member is configured to have a shape whose front end face has a concave curve so that a gap from the plurality of air-blowing openings to the bent glass sheet G becomes substantially uniform.

Abstract: In an optical semiconductor integrated circuit device using a lead frame, a transparent epoxy resin composition for molding an optical semiconductor contains (A) an epoxy resin; (B) a curing agent; (C) a thiol; and (D) an amine-based curing catalyst represented by following Chemical Formula 1: R1: a hydrogen atom (—H), an alkyl group, or a phenyl group R2: an alkyl group (—CH3, —C2H5, —C3H7).

Abstract: The present invention relates to an epoxy resin composition for optical-semiconductor encapsulation which comprises the following ingredients (A) to (C): (A) an epoxy resin; (B) a curing agent; and (C) a naphthalocyanine colorant. The epoxy resin composition of the invention transmits visible rays and shields near infrared rays while retaining properties inherent in the epoxy resin.

Abstract: The present invention relates to an epoxy resin composition for optical semiconductor element encapsulation, the epoxy resin composition including following components (A) to (C): (A) an epoxy resin represented by the following structural formula (1): in which n is a positive number, (B) an epoxy resin except for the epoxy resin represented by the structural formula (1), and (C) a curing agent.

Abstract: The present invention relates to an epoxy resin composition for optical-semiconductor encapsulation which comprises the following ingredients (A) to (C): (A) an epoxy resin; (B) a curing agent; and (C) a naphthalocyanine colorant. The epoxy resin composition of the invention transmits visible rays and shields near infrared rays while retaining properties inherent in the epoxy resin.

Abstract: An epoxy resin composition for encapsulating optical semiconductor element, comprising the following (A) to (D): (A) an epoxy resin component comprising a novolak type epoxy resin having at least one of the biphenyl skeleton and naphthalene skeleton in one molecule in an amount of from 50 to 100% by weight of the total weight of the epoxy resin component, (B) a curing agent component comprising a novolak type phenol resin having at least one of the biphenyl skeleton and naphthalene skeleton in one molecule in an amount of from 50 to 100% by weight of the total weight of the curing agent component, (C) an organic phosphorus flame retarder, and (D) a curing catalyst, wherein the content of an organic phosphorus flame retarder as (C) is from 1.5 to 10% by weight based on the total weight of the epoxy resin composition.

Abstract: An epoxy resin composition for encapsulating an optical semiconductor element, which has small internal stress and also can obtain good light transmittance within a broad temperature range. An epoxy resin composition for encapsulating an optical semiconductor element comprising the following component (A): (A) an epoxy resin complex which comprises an epoxy resin as the matrix component and silicon dioxide particles (a) dispersed therein: (a) silicon dioxide particles having an average particle size of from 5 to 40 nm measured by the small angle neutron scattering (SANS).

Abstract: In an optical semiconductor integrated circuit device using a lead frame, a transparent epoxy resin composition for molding an optical semiconductor contains (A) an epoxy resin; (B) a curing agent; (C) a thiol; and (D) an amine-based curing catalyst represented by following Chemical Formula 1: R1: a hydrogen atom (—H), an alkyl group, or a phenyl group R2: an alkyl group (—CH3, —C2H5, —C3H7)

Abstract: An epoxy resin composition for encapsulating optical semiconductor element, comprising the following (A) to (D): (A) an epoxy resin component comprising a novolak type epoxy resin having at least one of the biphenyl skeleton and naphthalene skeleton in one molecule in an amount of from 50 to 100% by weight of the total weight of the epoxy resin component, (B) a curing agent component comprising a novolak type phenol resin having at least one of the biphenyl skeleton and naphthalene skeleton in one molecule in an amount of from 50 to 100% by weight of the total weight of the curing agent component, (C) an organic phosphorus flame retarder, and (D) a curing catalyst, wherein the content of an organic phosphorus flame retarder as (C) is from 1.

Abstract: An epoxy resin composition for encapsulating an optical semiconductor element, which has small internal stress and also can obtain good light transmittance within a broad temperature range. An epoxy resin composition for encapsulating an optical semiconductor element comprising the following component (A): (A) an epoxy resin complex which comprises an epoxy resin as the matrix component and silicon dioxide particles (a) dispersed therein: (a) silicon dioxide particles having an average particle size of from 5 to 40 nm measured by the small angle neutron scattering (SANS).

Abstract: A double-sided circuit board of which a solder conductor is prevented from deformation in a cycling test so as to maintain high connection reliability, comprises an insulating layer 2 made of an organic high molecular weight resin and a circuit 3 provided on each side of the insulating layer 2, the circuits 3 on both sides being electrically connected through via-holes filled with a conductor 4 made of solder having a metal powder 6 dispersed therein.

Abstract: A double-sided circuit board of which a solder conductor is prevented from deformation in a cycling test so as to maintain high connection reliability, comprises an insulating layer 2 made of an organic high molecular weight resin and a circuit 3 provided on each side of the insulating layer 2, the circuits 3 on both sides being electrically connected through via-holes filled with a conductor 4 made of solder having a metal powder 6 dispersed therein.