Abstract: A method of manufacturing a connection structure which includes a wiring substrate, a first electronic component that is flip-chip mounted on the front surface thereof, and a second electronic component that is flip-chip mounted on the rear surface. The method includes the steps of: temporarily mounting the first electronic component on the front surface of the wiring substrate with a first adhesive film disposed therebetween; temporarily mounting the second electronic component on the rear surface of the wiring substrate with a second adhesive film disposed therebetween, placing, on a pressure bonding receiving base, the wiring substrate on which the first electronic component and the second electronic component are temporarily mounted; and mounting the first electronic component and the second electronic component at a time onto the respective front and rear surfaces of the wiring substrate.

Abstract: The present invention provides a studless winter tire including a tread (a cap tread in the case of a multi-layered tread) which exhibits a reduced increase in hardness at low temperatures and achieves a balanced improvement in both performance on ice and snow and abrasion resistance. The present invention also provides a studless winter tire including a base tread which exhibits a reduced increase in hardness at low temperatures and achieves a balanced improvement in both performance on ice and snow and durability. The studless winter tires include a tread or base tread formed from a rubber composition that contains predetermined amounts of silica and a rubber component including natural rubber and a specific modified conjugated diene polymer.

Abstract: An insulating adhesive film is formed by laminating a first insulating adhesive layer which contains a filler in an insulating adhesive composition and a second insulating adhesive layer which contains no filler in an insulating adhesive composition. H/2<Tf<H?Tf+Tn is satisfied, wherein H is the height of the bump of the IC chip, Tf is the thickness of the first insulating adhesive layer, and the Tn is the thickness of the second insulating adhesive layer. The side of the substrate on which an electrode is formed and the side of an IC chip on which a bump is formed are connected via the insulating adhesion film arranged such that the first insulating adhesive layer and the electrode-forming side of the electronic component are opposed to thereby connect the electrode of the substrate and the bump of the IC chip.

Abstract: Provided are rubber compositions for tires capable of providing tire components and pneumatic tires that have the same level of fuel efficiency and wet grip performance (particularly, wet grip performance) as those of tire components and pneumatic tires containing conventional synthetic rubber, while satisfying the requirements for a sound material-cycle society. The present invention relates to rubber compositions for tires containing a biomass-derived rubber polymerized from an aromatic vinyl compound and a diene, the biomass-derived rubber having a pMC (percent modern carbon) measured in accordance with ASTM D 6866-10 of 1% or higher.

Abstract: The present invention has its object to provide a high performance studless tire, which has both good braking force and high handling stability on ice or snow, at higher productivity and at a lower price for customers. The studless tire comprises a tread made of a rubber composition that contains 0.5 to 5.0 parts by mass of a fatty acid and/or a derivative of the fatty acid per 100 parts by mass of a rubber component.

Abstract: Provided is a studless winter tire achieving balanced improvements in abrasion resistance and performance on snow and ice. The studless winter tire includes a cap tread formed from a rubber composition, the rubber composition containing a rubber component including natural rubber and polybutadiene rubber, an aromatic oil, and silica, the rubber component including the natural rubber and the polybutadiene rubber in a combined amount of 30 to 100 mass % per 100 mass % of the rubber component, the rubber composition containing, per 100 parts by mass of the rubber component, 20 to 80 parts by mass of the aromatic oil and 15 to 80 parts by mass of the silica, the rubber composition being prepared by mixing the natural rubber, the aromatic oil, and a masterbatch prepared by mixing the polybutadiene rubber and the silica.

Abstract: The present invention provides a studless winter tire that has enhanced performance on ice and snow both initially and after degradation while maintaining good abrasion resistance. The studless winter tire includes: a cap tread formed from a rubber composition A; and a base tread formed from a rubber composition B, wherein the studless winter tire satisfies the following formulas (1) and (2): a×c/100<b×d/100; and ??(1) a?8 ??(2) wherein a represents the softener content (% by mass) based on 100% by mass of the rubber composition A; b represents the softener content (% by mass) based on 100% by mass of the rubber composition B; c represents the percentage by mass (% by mass) of the cap tread based on the entire tread; and d represents the percentage by mass (% by mass) of the base tread based on the entire tread.

Abstract: The present invention provides rubber compositions for tires capable of providing tire components and pneumatic tires having low-temperature properties and abrasion resistance that are equivalent to those of tire components and pneumatic tires formed from conventional synthetic rubber, respectively, while meeting the demand for a sound material-cycle society. The present invention relates to rubber compositions for tires containing a biomass-derived rubber obtained by polymerizing a biomass-derived monomer component, the biomass-derived rubber having a pMC (percent modern carbon) value of 1% or greater as determined in conformity with ASTM D6866-10, and having a Tg (glass transition temperature) value of ?120° C. to ?80° C.

Abstract: An insulating adhesive film is formed by laminating a first insulating adhesive layer which contains a filler in an insulating adhesive composition and a second insulating adhesive layer which contains no filler in an insulating adhesive composition. H/2<Tf<H?Tf+Tn is satisfied, wherein H is the height of the bump of the IC chip, Tf is the thickness of the first insulating adhesive layer, and the Tn is the thickness of the second insulating adhesive layer. The side of the substrate on which an electrode is formed and the side of an IC chip on which a bump is formed are connected via the insulating adhesion film arranged such that the first insulating adhesive layer and the electrode-forming side of the electronic component are opposed to thereby connect the electrode of the substrate and the bump of the IC chip.

Abstract: The present invention has its object to provide a rubber composition for a studless tire that contributes to both good braking force and high handling stability on ice or snow, and a high performance studless tire using the rubber composition. The rubber composition for the studless tire contains: a mixture of a zinc salt of an aliphatic carboxylic acid and a zinc salt of an aromatic carboxylic acid; an oil or a plasticizer; and a rubber component that comprises 40% by mass or more of a butadiene rubber relative to 100% by mass of a total amount of the rubber component.

Abstract: A method of manufacturing a connection structure which includes a wiring substrate, a first electronic component that is flip-chip mounted on the front surface thereof, and a second electronic component that is flip-chip mounted on the rear surface. The method includes the steps of: temporarily mounting the first electronic component on the front surface of the wiring substrate with a first adhesive film disposed therebetween; temporarily mounting the second electronic component on the rear surface of the wiring substrate with a second adhesive film disposed therebetween, placing, on a pressure bonding receiving base, the wiring substrate on which the first electronic component and the second electronic component are temporarily mounted; and mounting the first electronic component and the second electronic component at a time onto the respective front and rear surfaces of the wiring substrate.

Abstract: Provided are: a rubber composition for studless winter tires, achieving balanced improvement in performance on ice and snow, wet grip performance, and abrasion resistance; and a studless winter tire including a tread formed from the same. The rubber composition for studless winter tires includes: a rubber component including NR and BR; an aromatic oil; silica; and carbon black, wherein the combined amount of NR and BR is 30 mass % or more per 100 mass % of the rubber component; the amount of aromatic oil is 12-85 parts by mass per 100 parts by mass of the rubber component; the silica content is 45 mass % or more per 100 mass % in total of silica and carbon black; the silica includes at least one silica (1) with an N2SA of 100 m2/g or less and at least one silica (2) with an N2SA of 180 m2/g or more; the combined amount of silicas (1) and (2) is 30-150 parts by mass per 100 parts by mass of the rubber component; and the amounts of silicas (1) and (2) satisfy: [Amount of silica (1)]×0.

Abstract: The present invention provides a rubber composition for a winter tire which improves in performance on ice and snow, wet grip performance, and abrasion resistance in a balanced manner, and also has favorable proccessability; and a winter tire including a tread produced using the rubber composition. The present invention relates to a rubber composition for a winter tire which contains predetermined amounts of natural rubber, butadiene rubber, aromatic oil, silica, and carbon black, and also contains a specific silane coupling agent that includes a linking unit A represented by the following formula (1) and a linking unit B represented by the following formula (2) and has a predetermined content of the linking unit B.

Abstract: The present invention has its object to provide a high performance studless tire for a passenger vehicle which has both good braking force and high handling stability on ice or snow. The studless tire for a passenger vehicle comprises a tread having a total sulfur content of 0.7% by mass or less and having a crosslink density of 2.0×10?5 mol/cm3 or higher.

Abstract: A rubber composition controlling the increase of aging hardness of a studless tire and keeping good performance on snow and ice for long period is provided. A rubber composition for a studless tire including at most 0.5 part by weight of sulfur and 1 to 30 parts by weight of an organic vulcanizing agent satisfying the general formula (1): —(R—Sx)n—??(1) (wherein R is (CH2—CH2—O)m—CH2—CH2, x is an integer of 3 to 6, n is an integer of 10 to 400 and m represents an integer of 2 to 5) based on 100 parts by weight of a rubber component, wherein the content of a natural rubber and/or a polybutadiene rubber is at least 80% by weight in the rubber component, and tan ? peak temperature Tg is at most ?50° C. and rubber hardness at 0° C. is at most 64.

Abstract: A rubber composition for a studless tire capable of improving the performance on snow and ice, wet performance, abrasion resistance in good balance, and a studless tire having a tread produced from the rubber composition is disclosed. The rubber composition for a studless tire includes a rubber component including modified natural rubber and butadiene rubber; aromatic oil; silica; and carbon black, wherein the amount of the aromatic oil is 15 to 80 parts by mass and the amount of the silica is 15 to 80 parts by mass, relative to 100 parts by mass of the rubber component.

Abstract: It is an object of the present invention to provide a rubber composition for a tread which can improve both performance on ice and abrasion resistance and a studless winter tire having a tread formed by this rubber composition. The present invention provides a rubber composition for a tread comprising 0.1 to 7.0 parts by mass of nanodiamond based on 100 parts by mass of a rubber component comprising at least one selected from a group consisting of a natural rubber, an isoprene rubber, a styrene butadiene rubber and a butadiene rubber, and a pneumatic tire having a tread formed by this rubber composition.

Abstract: The present invention has its object to provide a high performance studless tire, which has both good braking force and high handling stability on ice or snow, at higher productivity and at a lower price for customers. The studless tire comprises a tread made of a rubber composition containing 2.2 to 10 parts by mass of a fatty acid and/or a derivative of the fatty acid per 100 parts by mass of a rubber component, the tread having a JIS-A hardness of 50 or less.

Abstract: The present invention provides a rubber composition for a winter tire which improves in performance on ice and snow, wet grip performance, and abrasion resistance in a balanced manner, and also has favorable proccessability; and a winter tire including a tread produced using the rubber composition. The present invention relates to a rubber composition for a winter tire which contains predetermined amounts of natural rubber, butadiene rubber, aromatic oil, silica, and carbon black, and also contains a specific silane coupling agent that includes a linking unit A represented by the following formula (1) and a linking unit B represented by the following formula (2) and has a predetermined content of the linking unit B.

Abstract: The invention provides a rubber composition for studless tire achieving well-balanced abrasion resistance, performance on ice and snow, handling stability, and wet grip performance; and a studless tire including a tread produced from the composition. The composition contains: a rubber component; aromatic oil; silica; carbon black; and a mixture of a zinc salt of aliphatic carboxylic acid and a zinc salt of aromatic carboxylic acid, wherein the total of NR and BR in 100% by mass of the rubber component is 30% by mass or more, the amount of aromatic oil is 12-85 parts by mass, the amount of silica is 12-85 parts by mass, and the amount of mixture is 1 part by mass or more, per 100 parts by mass of the rubber component, and the proportion of silica is 45% by mass or more per 100% by mass of the total of the silica and carbon black.