摘要:
A crank angle sensor comprises a rotor plate formed with first slits for detecting a first cylinder angular position, second slits for a second cylinder angular position, and a third slit for detecting an angular position of a specified cylinder. The first slits are equi-angularly distant one after another and arranged within a predetermined annular band within the rotor plate, and the second slits are equi-angularly distant one after another and arranged within the predetermined annular band. Each of the first slits is located adjacent to the corresponding one of the second slits. In an ignition timing control system using the crank angle sensor, the control is performed by generating a train of pulses including a train of leading pulses and a train of trailing pulses superimposed to each other, determining whether a start switch is turned ON or not, determining whether an engine temperature is greater than a predetermined value or not, and carrying out an ignition at a falling edge of each of the trailing pulses when the engine temperature is greater than the predetermined value, and at a falling edge of each of the leading pulses when the engine temperature is not greater than the predetermined value.
摘要:
An iodine-containing conductive resin composition, said composition obtained by dispersing a carbon in a complex adduct of iodine and a polymer capable of forming a complex adduct with iodine and/or a mixture obtained by dispersing iodine in said polymer.
摘要:
A heating device which can prevent unused active chemical species from attaching to the bodies of various vacuum devices or depositing on the inner wall of their exhaust pipes to thereby be able to make the size of exhaust pipes smaller than before and make the exhaust pipe maintenance easier. The heating device comprises a heat resisting vacuum insulator (4) wound around the outer periphery of an electric heater (3) disposed along the outer wall of an exhaust pipe (1), wherein the electric heater (3) has a resistance heating element and a heat resisting electric insulator covering this resistance heating element, and the heat resisting vacuum insulator (4) comprises a hollow platy covering material air-tightly sealed thereinside by a metal seat (5) having a heat resisting temperature of at least 100° C., and a fibrous or granular filling material (6) filled in the hollow portion of this covering material and having a heat resisting temperature of at least 100° C., the inside of the covering material being kept vacuum.
摘要:
An electric wire and a cable having a coating/covering layer comprising a polyvinyl chloride family resin composition containing polyvinyl chloride family resin, and one or a plurality of types of compounds selected from calcium soap, zinc soap and hydrotalcite, and containing neither lead compound nor β-diketone with a melting point less than 100° C. avoiding generation of AMCs (Airborne Molecular Contaminants) are provided especially as an electric wire and cable with coating/covering of polyvinyl chloride family resin composition suitable for a use within a clean room for the purpose of manufacturing semiconductors or liquid crystal devices.
摘要:
A material not releasing gaseous organic substances during use is used as a filter medium and a sealing material for tightly sealing between the medium and a frame. Specifically, a synthetic paraffin not containing an aliphatic hydrocarbon having not more than 19 carbon atoms or less is used as a non-silicone type water repellent contained in a treatment agent for forming fibers into a cloth-like filter medium. A carboxylic acid ester having 400 or more molecular weight is used as a plasticizer and a phenolic compound having 300 or more molecular weight is used as an antioxidant to be added to the treatment agent and the sealing material. This enables that the gaseous organic substances are not present in a clean room, a semiconductor production apparatus or the like. Further, if the filter medium and the sealing material are formed of a material not releasing organic phosphorus compounds and boron compounds in the air, a clean room and a local facility particularly suitable for use in the production of semiconductors are provided.
摘要:
The present invention has as its object to provide an air filter not only for trapping suspended particulate substances but also for not generating hazardous contaminates in the air, which cause trouble in the manufacture of semiconductor devices. As a binder to bind fibers of the air filter together, a polymer dispersion is used in which a copolymer of a hydrophilic monomer and a hydrophobic monomer is dispersed in water. As an initiator for polymerization of the copolymer, an organic peroxide is used. When an air filter (8) is installed downstream of a chemical filter (7), the space (4) placed downstream of the air filter (8) is made substantially free of organic substances and/or inorganic substances that cause trouble in the manufacture of semiconductor devices.
摘要:
A semiconductor manufacturing facility is provided, which can reduce a thermal load in a clean room and reduce an amount of energy thereof. Semiconductor manufacturing equipment, which generates heat when it is used, is installed in the clean room and is covered by a housing. The housing is configured to be capable of introducing the air inside the clean room into an interior thereof. The air inside the housing is exhausted outside the clean room through a plurality of exhaust passage members. A heat insulating material is associated with the housing to reduce the release of heat from the housing to the air inside the clean room. A space between the housing and the semiconductor manufacturing equipment may be hermetically sealed, and an air introducing member may be connected to the housing to take air outside the clean room into the hermetically sealed space.
摘要:
A material not releasing gaseous organic substances during use is used as a filter medium and a sealing material for tightly sealing between the medium and a frame. Specifically, a synthetic paraffin not containing an aliphatic hydrocarbon having not more than 19 carbon atoms or less is used as a non-silicone type water repellent contained in a treatment agent for forming fibers into a cloth-like filter medium. A carboxylic acid ester having 400 or more molecular weight is used as a plasticizer and a phenolic compound having 300 or more molecular weight is used as an antioxidant to be added to the treatment agent and the sealing material. This enables that the gaseous organic substances are not present in a clean room, a semiconductor production apparatus or the like. Further, if the filter medium and the sealing material are formed of a material not releasing organic phosphorus compounds and boron compounds in the air, a clean room and a local facility particularly suitable for use in the production of semiconductors are provided.
摘要:
There are instruments used for handling a substrate in a clean room at room temperature and atmospheric pressure, which contain a resin base and at least one additive selected from the group consisting of a lubricant, a plasticizer, an anti-oxidizing agent and an antistatic agent, and the additives do not generate gaseous organic material compound under conditions of room temperature and atmospheric pressure.
摘要:
Disclosed herein is an agent for absorbing and releasing water vapor, which comprises a homopolymer of at least one monomer selected from specific N-alkyl- or N-alkylene-substituted acrylamides and methacrylamides, a copolymer of two or more of the acrylamides and methacrylamides, a copolymer of said at least one monomer with one or more monomers other than the acrylamides and methacrylamides and copolymerizable therewith, or a water-insolubilized product of the homopolymer or either one of the copolymers. The above agent has broad utility for humidity contol of gases, humidity control in green houses and prevention of fogging on surfaces of transparent materials, as humidity sensors and dew sensors, etc.