摘要:
An epoxy resin composition comprising an epoxy resin containing 0-10% by weight of a 2-nucleus compound and 50-100% by weight of 3 to 5-nucleus compounds combined and having a dispersity (Mw/Mn) of 1.0-1.7, an inorganic filler, a curing catalyst, and optionally a phenolic resin, and having a Tg of lower than 15° C. in an uncured state is effective in forming a flexible film which is easy to work at room temperature. A laminate film includes a layer of the epoxy resin composition and a protective layer. By sealing a semiconductor chip with the film, there is obtained a semiconductor package having improved heat resistance, improved moisture resistance, low stress property.
摘要:
An epoxy resin composition is provided that mainly comprises an epoxy resin, a curing agent, and an inorganic filler, and that cures into a product having a coefficient of water diffusion of up to 1.times.10.sup.-4 cm.sup.2 /hr. at a thickness of 3 mm under humid conditions at 85.degree. C. and RH 85%, wherein 1-50% by weight of an inorganic water absorbing agent such as molecular sieve, silica gel and porous silica is added to the epoxy resin composition. The composition offers cured products having fully low moisture permeability and is thus suitable as a pre-molded hollow package-forming material.
摘要翻译:提供了一种环氧树脂组合物,其主要包括环氧树脂,固化剂和无机填料,并且固化成具有高达1×10 -4 cm 2 / hr的水扩散系数的产物。 在湿度条件为85℃,RH为85%的条件下,在环氧树脂组合物中加入1-50重量%的无机吸水剂如分子筛,硅胶和多孔二氧化硅。 该组合物提供具有完全低透湿性的固化产物,因此适合作为预成型的中空包装形成材料。
摘要:
A epoxy resin composition comprising (A) an epoxy resin bearing at least one monovalent hydrocarbon group on a benzene ring, (B) a phenolic resin, (C) an inorganic filler, and (D) 2-phenyl-4,5-dihydroxymethylimidazole as a curing accelerator has a low melt viscosity, a long gel time and a high curing rate, and provides cured products having improved properties. Semiconductor devices encapsulated with cured products of the inventive composition are reliable.
摘要:
A novel quaternary phosphorus compound is a salt between tetraphenyl borate and a phosphonium having an aromatic group attached to a phosphorus atom through an oxygen atom. It is blended with an epoxy resin as a curing catalyst to form an epoxy resin composition which flows smoothly and quickly cures into a product having improved moisture resistance and adhesion.
摘要:
An epoxy resin composition comprising (i) an epoxy resin, (ii) a phenolic curing agent, (iii) an organophosphorous curing agent, (iv) alumina, and (v) a separating means for separating the organophosphorous curing agent and the alumina, which may be a coating over the surfaces of the organophosphorous curing agent.
摘要:
In a light transmissive epoxy resin composition comprising (A) an epoxy resin and (B) a curing agent are blended (C) an organic phosphorus anti-discoloring agent and (D) silica-titania glass beads surface treated with an organic silicon compound. The composition restrains coloring in composition form and discoloration in cured form while curing into clear low stressed products having high light transmittance. Optical semiconductor devices encapsulated with the cured epoxy resin composition are reliable.
摘要:
A thermosetting resin composition comprising a maleimide having at least one N-substituted maleimide group in the molecule thereof and a silicon compound having conjugated double bonds is easily workable and yields cured products having improved heat resistance.
摘要:
A heat-curable silicone resin-epoxy resin composition that is ideal as a premolded package for a high-brightness LED or solar cell. The composition contains (A) a heat-curable silicone resin, (B) a combination of a triazine derivative epoxy resin and an acid anhydride, or a prepolymer obtained by reaction of them, (C) an inorganic filler, and (D) a curing accelerator. The composition exhibits excellent curability, and yields a uniform cured product that displays excellent retention of heat resistance and light resistance over long periods of time, and suffers minimal yellowing.
摘要:
A colorless transparent silicone lens produced by thermally curing a silicone resin composition comprising (A) an organopolysiloxane having a resin structure comprising R1SiO1.5 unit, R22SiO unit, and R3aR4bSiO(4-a-b)/2 unit wherein R1, R2, and R3 are independently methyl group, ethyl group, propyl group, cyclohexyl group, or phenyl group, R4 is vinyl group or allyl group, a is 0, 1, or 2, b is 1 or 2, and a+b is 2 or 3, and wherein number of repetition of the R22SiO unit is 5 to 300, (B) an organohydrogen polysiloxane having a resin structure comprising R1SiO1.5 unit, R22SiO unit, and R3cHdSiO(4-c-d)/2 unit wherein c is 0, 1, or 2, d is 1 or 2, and c+d is 2 or 3, and wherein number of repetition of the R22SiO unit is 5 to 300, the component, and (C) a platinum group catalyst. A silicone lens having excellent flexibility, transparency, and moldability as well as reduced surface tackiness is provided.
摘要:
An addition curable adhesive silicone composition containing a phosphor dispersed uniformly therein is provided. The dispersive state of the phosphor remains stable over time. The composition, in an uncured state at room temperature, is either a solid or a semisolid, and is therefore easy to handle, and is suited to an adhesive silicone composition sheet which is able to be formed easily on an LED chip using a conventional assembly apparatus.