Abstract:
In order to provide an adhesive composition for electronic components that is excellent in adhesion durability under long-term high temperature conditions, thermal cyclability, and insulation reliability, designed is an adhesive composition for electronic components containing a thermoplastic resin (a), an epoxy resin (b), a hardener (c), and an organopolysiloxane (d), wherein the glass transition temperature (Tg) after curing is -10°C to 50°C and the rate of change of Tg after heat-treating the composition at 175°C for 1000 hours is 15% or less.
Abstract:
An adhesive sheet for a semiconductor connecting substrate consisting of a laminate having an adhesive layer on a substrate, wherein said adhesive layer contains a thermoplastic resin (A) and an epoxy resin (B) and said epoxy resin (B) contains at least one epoxy resin (B) selected from (I) dicyclopentadiene skeleton-containing epoxy resins, (II) terpene skeleton-containing epoxy resins, (III) biphenyl skeleton-containing epoxy resins and (IV) naphthalene skeleton-containing epoxy resins as an essential component; an adhesive-backed tape for TAB consisting of a laminate having an adhesive layer and a protective film layer on a flexible organic insulating film, wherein said adhesive layer has a softening temperature of 60 to 110 DEG C after having been cured and 50 hours or more in the insulation resistance dropping time after having been allowed to stand in an environment of 130 DEG C and 85% RH with DC 100 V applied; and a tape with adhesive for wire bonding connection consisting of a laminate having an adhesive layer and a protective film layer on a flexible organic insulating film, wherein said adhesive layer has a softening temperature of 120 to 170 DEG C after having been cured, a storage elastic modulus E' of 20 to 100 MPa at 150 DEG C and an insulation resistance dropping time of 50 hours or more after having been allowed to stand in an environment of 130 DEG C and 85 % RH with DC 100 V applied. The adhesive sheet for a semiconductor connecting substrate, the adhesive-backed tape for TAB and the adhesive-backed tape for wire bonding connection of the present invention are excellent in adhesive strength, insulatability, dimensional accuracy, etc., and can improve the reliability of a semiconductor integrated circuit connecting substrate and a semiconductor device respectively for high density packaging.
Abstract:
An epoxy resin composition composed of an epoxy resin (A), a hardener (B), and an inorganic filler (C), characterized in that the content of the inorganic filler (C) is 70-97 wt% and the inorganic filler (C) contains 0.1-50 wt% of alumina. When used to seal semiconductor devices, it exhibits good moldability and imparts to the sealed semiconductors good flame retardance, solder heat resistance, and reliability at high temperatures.
Abstract:
An epoxy resin composition comprising an epoxy resin (A), a curing agent (B), and an inorganic filler, wherein the curing agent (B) is one containing at least two phenolic and/or naphtholic hydroxyl groups in its molecule and the inorganic filler contains silica (C) as the essential ingredient, the silica comprising 1-99 wt.% of synthetic silica and 99-1 wt.% of molten natural silica; and a semiconductor device comprising semiconductor elements sealed therewith. The composition does not cause failure in resin filling, resin peeling, resin streak, stage shift and vent clogging in the molding step. The sealed semiconductor device is excellent in moisture-resistance reliability, high-temperature reliability and soldering resistance.