摘要:
A method of manufacturing a semiconductor device is provided. The method includes placing a semiconductor chip by flip-chip mounting on a substrate by using an insulating resin adhesive film (NCF) and preventing overflow of the NCF and the intervention of an insulating resin or an inorganic filler between a bump and an electrode during hot pressing. The method also includes temporarily affixing an NCF of a size that is substantially 60 to 100% the area of a region enclosed with a plurality of bumps of the semiconductor chip arranged in a peripheral alignment, and having a minimum melt viscosity of 2×102 to 1×105 Pa·s, to the region enclosed with a plurality of electrodes of the substrate corresponding to the bumps, and aligning the semiconductor chip and the substrate with each other such that the bumps and the electrodes corresponding thereto are opposed to each other.
摘要:
A method of manufacturing a semiconductor device is provided. The method includes placing a semiconductor chip by flip-chip mounting on a substrate by using an insulating resin adhesive film (NCF) and preventing overflow of the NCF and the intervention of an insulating resin or an inorganic filler between a bump and an electrode during hot pressing. The method also includes temporarily affixing an NCF of a size that is substantially 60 to 100% the area of a region enclosed with a plurality of bumps of the semiconductor chip arranged in a peripheral alignment, and having a minimum melt viscosity of 2×102 to 1×105 Pa·s, to the region enclosed with a plurality of electrodes of the substrate corresponding to the bumps, and aligning the semiconductor chip and the substrate with each other such that the bumps and the electrodes corresponding thereto are opposed to each other.
摘要:
To provide a polyketone porous film having heat resistance and chemical resistance and useful as a filter for filtration having a high particle collection efficiency and as a battery or capacitor separator having a low permeation resistance to ion and the like.A polyketone porous film comprising from 10 to 100 mass % of a polyketone as a copolymer of carbon monoxide and one or more olefins, wherein the polyketone porous film has a pore formed only by a polyketone, the pore diameter uniformity parameter as a value obtained by dividing the standard deviation of the pore diameter in the pore by an average pore diameter is from 0 to 1.0, and the average through hole diameter of the polyketone porous film is from 0.01 to 50 μm.
摘要:
Provided are a rubber composition improving wet-grip performance and its temperature dependence while ensuring good fuel economy, and a pneumatic tire including the composition. The composition includes, per 100% by mass of a rubber component: 5-55% by mass of an aromatic vinyl compound/conjugated diene compound copolymer (A) having an aromatic vinyl compound content of at least 5% by mass but less than 15% by mass and a vinyl bond content in a conjugated diene compound moiety of 10-70 mol %; and 5-75% by mass of an aromatic vinyl compound/conjugated diene compound copolymer (B) having an aromatic vinyl compound content of at least 15% by mass but less than 30% by mass and a vinyl bond content in a conjugated diene compound moiety of 10-70 mol %, and also includes, per 100 parts by mass of the rubber component, 10-150 parts by mass of a silica having a N2SA of 40-400 m2/g.
摘要:
An outer ring, an inner ring, and a ball, each of which is a bearing part, are made of a quench-hardened steel containing not less than 0.90 mass % and not more than 1.05 mass % of carbon, not less than 0.15 mass % and not more than 0.35 mass % of silicon, not less than 0.01 mass % and not more than 0.50 mass % of manganese, and not less than 1.30 mass % and not more than 1.65 mass % of chromium with the rest consisting of an impurity. A contact surface thereof with another part has a nitrogen concentration of not less than 0.25 mass %. A remaining austenite amount in the contact surface is not less than 6 volume % and not more than 12 volume %.
摘要:
A powder-classification method includes a mixing step in which a powder and a liquid additive are mixed together, a drying step in which the powder mixed in the mixing step is dried, a loading step in which the powder dried in the drying step is loaded into a fluid classifier, a heating step in which a gas is heated, a supplying step in which the gas heated in the heating step is supplied to the fluid classifier, and a classifying step in which the powder is classified in the fluid classifier based on a grain size of the powder.
摘要:
A method and apparatus for determining a reading order of characters The method includes preparing a list of character information, which is character information extracted from image data by character recognition processing and preparing a list of line information, which is made up of a line box surrounding a set of characters which are continuously aligned in the same direction in image data and an alignment direction of characters in the line box. In response to a request for adding character information to the list of character information, extracting a line box containing a character region of the character to be added, obtaining all character information having the character region contained in the concerned line box from the list of character information and rearranging according to the position with respect to the alignment direction of characters corresponding to the line box to determine a new reading order of characters.
摘要:
A phase-shift detection circuit detects a phase shift in motor driving, using pulse-shaped position detection signal Rd and measurement signal Ms. The position detection signal is based on sensor signal Hs from a position sensor disposed in a motor. The measurement signal is based on the induced voltage from windings. The phase-shift detection circuit includes a level difference calculator and a phase-shift calculator. The level difference calculator calculates a level difference between the level of measurement signal Ms at a rising timing of position detection signal Rd and the level of measurement signal Ms at a falling timing thereof. The phase-shift calculator calculates the amount of phase shifts based on the level difference.
摘要:
Provided are a rubber composition improving wet-grip performance and its temperature dependence while ensuring good fuel economy, and a pneumatic tire including the composition. The composition includes, per 100% by mass of a rubber component: 5-55% by mass of an aromatic vinyl compound/conjugated diene compound copolymer (A) having an aromatic vinyl compound content of at least 5% by mass but less than 15% by mass and a vinyl bond content in a conjugated diene compound moiety of 10-70 mol %; and 5-75% by mass of an aromatic vinyl compound/conjugated diene compound copolymer (B) having an aromatic vinyl compound content of at least 15% by mass but less than 30% by mass and a vinyl bond content in a conjugated diene compound moiety of 10-70 mol %, and also includes, per 100 parts by mass of the rubber component, 10-150 parts by mass of a silica having a N2SA of 40-400 m2/g.
摘要:
Provided are: a rubber composition a achieving balanced improvement in processability, fuel economy, rubber strength, abrasion resistance, wet-grip performance, and handling stability, and a pneumatic tire including the composition. Included is a rubber composition including a conjugated diene polymer and a silica having N2SA of 40-400 m2/g, the diene polymer being obtained by polymerizing a monomer component including a conjugated diene compound and a silicon-containing vinyl compound in the presence of a polymerization initiator of formula (I): to produce, a copolymer, and reacting a compound containing nitrogen and/or silicon atoms with an active terminal of the copolymer, wherein the amount of the diene polymer is 1-90% by mass and the amount of a polyisoprene-based rubber is 0-70% by mass, each per 100% by mass of the rubber component, and the amount of the silica is 10-150 parts by mass per 100 parts by mass of the rubber component.