摘要:
To provide an electrically conductive resin composition with which contamination of an electronic component resulting from abrasion of an electrically conductive sheet by friction with the electronic component is small, and which is excellent in sealing properties with a cover tape.An electrically conductive resin composition comprising 100 parts by mass of a thermoplastic resin containing from 60 to 97 mass % of a polycarbonate resin and from 3 to 40 mass % of at least one hydrocarbon copolymer selected from the group consisting of an olefin copolymer and a styrene copolymer, and from 5 to 50 parts by mass of carbon black, and an electrically conductive sheet comprising the electrically conductive resin composition. Further, an electrically conductive sheet, comprising a substrate layer containing at least one thermoplastic resin selected from the group consisting of an acrylonitrile/butadiene/styrene copolymer (ABS) resin, a polycarbonate resin and a polyalkylene terephthalate resin, and a layer of the above electrically conductive resin composition formed on one side or both sides of the substrate layer.
摘要:
To provide an electrically conductive resin composition with which contamination of an electronic component resulting from abrasion of an electrically conductive sheet by friction with the electronic component is small, and which is excellent in sealing properties with a cover tape.An electrically conductive resin composition comprising 100 parts by mass of a thermoplastic resin containing from 60 to 97 mass % of a polycarbonate resin and from 3 to 40 mass % of at least one hydrocarbon copolymer selected from the group consisting of an olefin copolymer and a styrene copolymer, and from 5 to 50 parts by mass of carbon black, and an electrically conductive sheet comprising the electrically conductive resin composition. Further, an electrically conductive sheet, comprising a substrate layer containing at least one thermoplastic resin selected from the group consisting of an acrylonitrile/butadiene/styrene copolymer (ABS) resin, a polycarbonate resin and a polyalkylene terephthalate resin, and a layer of the above electrically conductive resin composition formed on one side or both sides of the substrate layer.
摘要:
A sheet which has a substrate layer containing from 21 to 87 mass % of a polycarbonate resin, from 7 to 68 mass % of a polyalkylene terephthalate resin and from 3 to 30 mass % of carbon black, and a surface layer containing from 19 to 86 mass % of a polycarbonate resin, from 6 to 67 mass % of a polyalkylene terephthalate resin and from 5 to 35 mass % of carbon black, laminated on one side or both sides of the substrate layer by extrusion, co-extrusion or extrusion coating, where the sheet has a burr incidence ratio of at most 4%, and a carrier tape using the sheet.
摘要:
To provide a sheet having mechanical strength which is capable of coping with high speed packaging and mounting of electronic components, which can be molded in a wide temperature region at a lower temperature side by various molding methods, and with which a molded product having formation of burrs and sink marks at the time of blanking and slitting remarkably reduced can be obtained.A sheet which comprises a substrate layer containing from 21 to 87 mass % of a polycarbonate resin, from 7 to 68 mass % of a polyalkylene terephthalate resin and from 3 to 30 mass % of carbon black, and a surface layer containing from 19 to 86 mass % of a polycarbonate resin, from 6 to 67 mass % of a polyalkylene terephthalate resin and from 5 to 35 mass % of carbon black, laminated on one side or both sides of the substrate layer by extrusion, co-extrusion or extrusion coating, and which has a burr incidence ratio of at most 4 %, and a carrier tape using the sheet.
摘要:
It is intended to provide a method of preparing sample for matrix-assisted laser desorption/ionization mass spectrometry using a matrix capable of generating preferred crystals that cause effective ionization of a molecule to be measured. A method of preparing a sample for matrix-assisted laser desorption/ionization mass spectrometry comprising the steps of: preparing a solution of 2,5-dihydroxybenzoic acid of 40 mg/mL to saturated concentration as a matrix solution; and dispensing the matrix solution to a sample to be analyzed by using an inkjet mechanism, to crystallize the 2,5-dihydroxybenzoic acid.
摘要:
The multifrequency antenna comprises a substrate, antenna elements, shunt inductor conductors, series capacitor conductors, series inductor conductors, a connection point, and input/output terminals. The antenna elements are provided on the substrate and electrically connected to the connection point via the shunt inductor conductors. The antenna elements form capacitors together with the parts facing the series capacitor conductors and are electrically connected to the input/output terminals via these capacitors and series inductor conductors.
摘要:
A miniature variable-beam microwave antenna (1) comprises antenna conductors (100a, 100b), an EBG conductor (120), a variable reactance element (130), and an adjusting part (150). The EBG conductor (120) is connected to a grounded part (160) through the variable reactance element (130). The adjusting part (150) changes the apparent reactance of the EBG conductor (120) by changing the capacity of the variable reactance element (130). As the apparent reactance of the EBG conductor (120) changes, the directivity of the miniature variable-beam microwave antenna (1) also changes.
摘要:
A multi-frequency antenna (1) comprises a dielectric substrate (100), an antenna element (110), a shunt inductor (120), a capacitor conductor (130), a series inductor (140), a grounded part (150) and a feeding point (160). The antenna element (110) is arranged on the substrate (100), and is electrically connected to the grounded part (150) through the shunt inductor (120). Moreover, the antenna element (110) is electrically connected to the feeding point (160) through a series capacitor formed by a part where the antenna element (110) faces the capacitor conductor (130) and the substrate (100) therebetween, and through the series inductor (140).
摘要:
In a power-loss reducing system, a transmitting unit causes a radar to transmit a measurement radio wave, and a power monitoring unit monitors power of the measurement radio wave transmitted from the radar through a cover while changing a positional relationship between the cover and the radar. An extracting unit extracts a value of the changed positional relationship between the cover and the radar based on a result of the monitoring of the power such that the extracted value of the positional relationship allows reduction of power loss of a radar wave transmitted, through the cover, from the radar located based on the extracted value of the positional relationship.
摘要:
In a semiconductor device, re-wiring is provided on a circuit element formation region of a semiconductor substrate. A columnar electrode for connection with a circuit board is provided on the rewiring. A first insulating film is provided over the semiconductor substrate excluding a connection pad, and a ground potential layer connected to a ground potential is provided on an upper surface of the first insulating film. A re-wiring is provided over the ground potential layer with a second insulating film interposed. The ground potential layer serves as a barrier layer for preventing crosstalk between the re-wiring and circuit element formation region. A thin-film circuit element is provided on the second insulating film, and a second ground potential layer is provided as a second barrier layer over the thin-film circuit element with an insulating film interposed. Re-wiring is provided over the second ground potential layer.