摘要:
An epoxy resin composition comprising (A) a specific epoxy resin, (B) a phenolic resin having at least one naphthalene ring in a molecule, and (C) an inorganic filler has improved flow and cures into products having a low coefficient of expansion, high Tg, and low moisture absorption. The composition is suitable for encapsulating semiconductor devices.
摘要:
An epoxy resin composition comprising (A) a naphthalene ring-containing epoxy resin, (B) a biphenyl-containing epoxy resin, (C) a specific phenolic resin, and (D) an inorganic filler shows good flow and cures to products having low modulus of elasticity, especially at temperatures above Tg, a low coefficient of expansion, high Tg irrespective of low stresses, and minimized water absorption. Then semiconductor devices encapsulated with the present composition remain highly reliable even after being subject to thermal shocks upon surface mounting.
摘要:
A composition comprising an epoxy resin and a curing agent is blended with a thermoplastic resin impregnated with an organic silicon compound to provide an epoxy resin composition which cures into products having improved adhesion and thermal impact and is suitable for encapsulating semiconductor devices.The impregnated thermoplastic resin is formed by swelling the thermoplastic resin with a solvent and impregnating the swollen thermoplastic resin with the organic silicon compound.
摘要:
An epoxy resin composition comprising (A) an epoxy resin having at least two epoxy groups in a molecule, (B) a phenolic resin having at least one naphthalene ring in a molecule, and (C) an inorganic filler has improved flow and cures into products having a low coefficient of expansion, high Tg, and low moisture absorption. The composition is thus suitable for encapsulating semiconductor devices.
摘要:
An epoxy resin composition which comprises a curable epoxy resin, a curing agent, an inorganic filler, and at least one copolymer selected from copolymers obtained by an addition reaction between aromatic polymers containing one or more epoxy groups and one or more alkenyl groups and the specific organopolysiloxanes; copolymers obtained by an addition reaction between aromatic polymers containing one or more epoxy groups and the specific amino group-containing organopolysiloxanes.
摘要:
A semiconductor encapsulating epoxy resin composition comprising an epoxy resin, a curing agent, and an inorganic filler is improved in melt flow and moldability when the filler comprises spherical silica having a mean particle size of 5 to 35 .mu.m and a specific surface area of up to 1.4 m.sup.2 /g. A mixture of (A) spherical silica having a mean particle size of 0.1 to 2 .mu.m, and (C) ground silica having a mean particle size of 2 to 15 .mu.m is also useful as the filler. A cured product thereof has a low coefficient of expansion and improved crack resistance upon soldering after moisture absorption.
摘要:
An epoxy resin composition which comprises a curable epoxy resin, a curing agent, an inorganic filler, and at least one copolymer selected from copolymers obtained by an addition reaction between aromatic polymers containing one or more epoxy groups and one or more alkenyl groups and the specific organopolysiloxanes; copolymers obtained by an addition reaction between aromatic polymers containing one or more epoxy groups and the specific amino group-containing organopolysiloxanes.
摘要:
An epoxy resin-based composition suitable for encapsulation of semiconductor devices is proposed. The resin composition is capable of giving a cured resin encapsulation highly resistant against crack formation by virtue of the unique ingredient therein, in addition to the thermally curable epoxy resin and an inorganic filler, which is a combination of an organopolysiloxane having a hydrocarbon group substituted by certain functional groups, e.g. glycidyl, amino, mercapto and the like, and a block copolymer composed of the segments of a polymeric aromatic moiety and segments of an organopolysiloxane moiety.
摘要:
A semiconductor encapsulating epoxy resin composition is provided comprising (A) an epoxy resin, (B) a phenolic resin curing agent, (C) a molybdenum compound, (D-i) an organopolysiloxane, (D-ii) an organopolysiloxane cured product, or (D-iii) a block copolymer obtained by reacting an epoxy resin or alkenyl group-bearing epoxy resin with an organohydrogenpolysiloxane, and (E) an inorganic filler. The composition has improved moldability and solder crack resistance while exhibiting high flame retardance despite the absence of halogenated epoxy resins and antimony oxide.
摘要:
An epoxy resin composition comprising (A) a biphenyl skeleton epoxy resin, (B) a biphenyl skeleton phenolic resin as a curing agent, (C) molybdenum compound, and (D) an inorganic filler is suited for semiconductor encapsulation since it is effectively moldable and cures into a part having improved reflow crack resistance, moisture resistance, and flame retardance. It does not pose a hazard to human health or the environment.