摘要:
A hydrosilylation curable electrically conductive silicone elastomer composition containing an acrylic functional group containing organopolysiloxane such that when the compositon is used to adhere a semiconductor chip to a substrate and the composition is then irradiated with a high energy beam, the exposed periphery of the composition cures to the extent that migration of low molecular weight silicone species from the compositon, both before and during the hydrosilyation reaction, is minimized.A method for manufacturing a semiconductor device having improved reliability in which, during adhesion of a semiconductor chip to the substrate, package, etc., by means of this composition, decreases in wire bondability to the semiconductor chip or lead frame and adhesion defects between the semiconductor chip, substrate, package, or lead frame and the sealing resin can be inhibited.A semiconductor device manufactured by this method which has improved reliability.
摘要:
A hydrosilylation curable electrically conductive silicone elastomer composition containing an acrylic functional group-containing organopolysiloxane such that when the composition is used to adhere a semiconductor chip to a substrate and the composition is then irradiated with a high energy beam, the exposed periphery of the composition cures to the extent that migration of low molecular weight silicone species from the composition, both before and during the hydrosilyation reaction, is minimized.A method for manufacturing a semiconductor device having improved reliability in which, during adhesion of a semiconductor chip to the substrate, package, etc., by means of this composition, decreases in wire bondability to the semiconductor chip or lead frame and adhesion defects between the semiconductor chip, substrate, package, or lead frame and the sealing resin can be inhibited.A semiconductor device manufactured by this method which has improved reliability.
摘要:
A silicone die attach adhesive comprising a silicone composition that cures both through the free radical reaction of acrylic-functional organopolysiloxane as induced by exposure to high-energy radiation and through the hydrosilylation reaction between alkenyl-functional organopolysiloxane and silicon-bonded hydrogen-functional organopolysiloxane.Also, a fabrication method characterized bymounting a semiconductor chip on a substrate or in a package with the aforesaid silicone die attach adhesive sandwiched between the semiconductor chip and substrate or package,then inducing the free radical reaction of the acrylic functional groups by exposing the die attach adhesive to high-energy radiation, and thereaftercuring the die attach adhesive by the hydrosilylation reaction.A semiconductor device characterized in that it has been fabricated by the above-described method.
摘要:
An addition reaction-curing conductive silicone composition comprises: an organopolysiloxane with alkenyl groups, an organopolysiloxane with silicon-bonded hydrogen atoms, a conductive microparticulate, a platinum catalyst, and a volatile solvent; and the composition cures to yield a conductive cured silicone product that has low resistance and resistivity values, a resistance value independent of temperature, and little variation in resistance and resistivity values over time.
摘要:
The present invention provides a heat-conducting polymer composition in which a heat-conducting metal powder is contained in a polymer, said heat-conducting polymer composition being characterized by the fact that the aforementioned powder is a metal powder which has a metal oxide layer and/or a metal nitride layer on the surfaces of the powder particles. The heat-conducting polymer composition of the present invention is characterized by the fact that said composition has a superior storage stability and thermal conductivity, and also by the fact that said composition has electrical insulating properties.
摘要:
A curable organosiloxane composition useable as a silicone die attach adhesive, an electrically conductive silicone rubber composition each comprising a composition that cures through both addition and condensation reactions, that will not impair wire bondability to a semiconductor chip or lead frame after the semiconductor chip has been bonded to a substrate or package; and semiconductor devices in which the semiconductor chip is bonded to its substrate or package using the curable organosiloxane composition and in which the semiconductor device that evidences high reliability by virtue of the use of the curable organosiloxane composition.
摘要:
The present invention relates to electrically conductive silicone compositions comprising an organopolysiloxane containing at least two alkenyl groups per molecule, an organohydrogenpolysiloxane having at least two silicon-bonded hydrogen atoms per molecule, a platinum group metal containing catalyst, a conductive metal particulate, a precrosslinked elastomeric silicone particle, and a non-reactive volatile diluent. The electrically conductive silicone compositions of this invention are useful as electrically conductive adhesives and coatings for electrical and electronic devices. The cured electrically conductive silicone compositions of this invention have high electroconductivity and rubbery elasticity.
摘要:
A curable organopolysiloxane composition, comprising (A) an organopolysiloxane containing an average of at least 2 alkenyl groups and at least 2 silicon-bonded hydrogen atoms per molecule; (B) a compound containing alkenyl and hydroxyphenyl groups in each molecule, and (C) a hydrosilylation catalyst. A product formed by curing the organopolysiloxane composition and a unified article comprising a substrate and a product formed by curing the organopolysiloxane, wherein the substrate is unified into a single integral body with the cured product.
摘要:
A photocurable organic polymer composition can be quickly cured into a moisture-penetration-resistant solid body by irradiation with ultraviolet rays, electron beams, or the like, and imparts adhesiveness to a cured body after aging. The photocurable organic polymer composition includes: (D) a photoinitiator and either (I) a composition or (II) a reaction product; where (I) the composition includes (A) a liquid organic polymer having at least one hydroxy group per molecule; (B) a radiation curable alkoxysilane; and (C) a condensation-reaction catalyst; and (II) the reaction product comprises (F) a reaction product of components (A), (B), and (C).
摘要:
A curable organopolysiloxane composition comprising: (A) an organopolysiloxane (a1) that contains in one molecule at least one silicon-bonded alkoxysilyl-containing group and an average of at least 0.5 alkenyl groups; or a mixture of said organopolysiloxane (a1) with an organopolysiloxane (a2) that contains in one molecule at least two alkenyl groups and that is free of the alkoxysilyl-containing groups; (B) an organopolysiloxane that contains in one molecule at least two silicon-bonded hydrogen atoms; (C) an organosilicon compound that contains in one molecule at least one silicon-bonded alkoxy group and that is free of the alkoxysilyl-containing groups; and (D) a hydrosilylation-reaction catalyst, has good adhesion to unclean aluminum die castings, PPS resins, etc., even when cured by heating at relatively low temperatures such as 100° C.