摘要:
A semiconductor device may include a double hetero junction bipolar transistor and a field-effect transistor. The base of the bipolar transistor and the gate of the field-effect transistor are connected to each other to serve as an input terminal and the collector of the bipolar transistor and the drain of the field-effect transistor are connected to each other to serve as an output terminal. The bipolar transistor and the field-effect transistor may be created on a common substrate. In this case, both the bipolar and field-effect transistors can have the same multilayer/film structures.
摘要:
In a high speed logic circuit using a vertical hetero-junction bipolar transistor, in which two-dimensional carriers formed at a semiconductor hetero-junction interface are used as a base layer, the uppermost layer being a collector layer, the lowest layer being an emitter layer, two base electrodes making contact with the base layer are disposed so as to put a collector electrode, which is electrically in contact with the collector layer, therebetween. The base electrodes are used at the same time as a source electrode and a drain electrode, respectively, of a field effect transistor using the two-dimensional carriers as an active layer. The high speed logic circuit is so constructed that one of the base electrodes of the bipolar transistor is an input terminal; the other is connected with a power supply; the emitter is grounded; and the collector is an output terminal.
摘要:
The rubber glove according to the present invention includes: a sleeve portion generally in the form of a cylinder having a first end and a second end and provided with a cuff formed on the first end; and a glove body linked to the second end of the sleeve portion, wherein the sleeve portion and the glove body are integrally formed by a film of rubber or resin, and the sleeve portion includes a maximum perimeter portion of 240 mm to 360 mm and a drawn portion having a minimum perimeter portion of 50 to 90% of the maximum perimeter portion in length.
摘要:
An object of the present invention is to facilitate welding connection of an enameled wire to a busbar to increase accuracy and reliability of the welding, and provide a high quality and highly reliable busbar connection structure and inverter-integrated electric compressor by reducing processes of welding operation. In a busbar connection structure for closely contacting, welding and connecting an enameled wire end portion (27A, 28A) of a coil onto an external connection bent surface (35) formed on a busbar (33), a through hole (36, 46) through which the end portion (27A, 28A) of the enameled wire (27, 28) passes is formed on the inside of a base portion of the bent surface (35) of the busbar (33), and the end portion (27A, 28A) of the enameled wire (27, 28) is passed through the through hole (36, 46), positioned onto a welding point (35A) of the bent surface (35), and welded and connected onto the bent surface (35).
摘要:
An optical frequency division multiplexing network includes first optical communication paths connected to terminals, respectively, a second optical communication path connected to the outside and a node composed of a selection unit for selecting signals having optical frequencies to be sent to the plurality of terminals, respectively, from signals transmitted through the second optical communication path in optical frequency division multiplexing, a conversion unit for converting the selected signals into signals having a single optical frequency and an output unit for producing the converted signals to the terminals through the first optical communication paths, respectively.
摘要:
There is obtained a chlorinated vinyl chloride resin composition from which a siding molded article having good appearance and excellent heat resistance, impact resistance and weatherability is obtained. A chlorinated vinyl chloride resin composition for siding extrusion molding is obtained and a siding molded article is prepared therefrom, said chlorinated vinyl chloride resin composition comprising 100 parts by weight of a chlorinated vinyl chloride resin and 3 to 20 parts by weight of an acrylic graft rubber copolymer, wherein the acrylic graft rubber copolymer contains 30 to 90% by weight of acrylic hollow rubber particles whose average void ratio is 3 to 90% by volume in a latex state.
摘要:
A surface emitting semiconductor laser of a laminated structure having at least a light emitting active layer sandwiched between a dielectric film multi-layer mirror and a p-type semiconductor multi-layer mirror on a semiconductor substrate. The energy .DELTA.Ec of conduction band discontinuity is higher than the energy .DELTA.Ev of valence band discontinuity between at least two kinds of semiconductor layers with different refractive indices constituting the p-type semiconductor multi-layer mirror. On the other hand, the energy .DELTA.Ev of valence band discontinuity is higher than the energy .DELTA.Ec of conduction band discontinuity between at least two kinds of semiconductor layers with different refractive indices constituting the n-type semiconductor multi-layer mirror.
摘要:
In a combination of sliding members which are suitable for use in the compressor for an automotive air conditioner, one of the members consists of an aluminum alloy which contains silicone particles consisting solely of eutectic silicon; and the other sliding member consists of a fluoride resin which contains carbon fibers and a calcium compound. The surface of the aluminum alloy can be finished to a desired smoothness as it does not contain any excessively hard substance. Also, since a calcium compound which is intermediate between carbon fibers and teflon resin in hardness is distributed in the teflon resin, the tendency of the carbon fibers to attack the aluminum alloy is reduced, and the aluminum alloy can achieve a sufficient wear resistance even though it does not contain any primary crystal silicon particles having a high hardness. Furthermore, the calcium compound serves as a lubricant, and reduces friction between the two sliding members.
摘要:
A fixing belt for a fixing device of an image forming apparatus includes a base layer including a heat-resistant resin and a mesh member embedded in the heat-resistant resin and including a metal member, in which the mesh member includes an opening. The heat-resistant resin fills in the opening. A thickness of the thinnest portion of the mesh member is 40% or more of the thickness of the base layer. A fixing device includes a heating member; a pressure member; and the fixing belt as described above. Further, an image forming apparatus includes an image forming section and the fixing device including the above described fixing belt.
摘要:
In pattern synchronization for correctly regenerating received data, which is performed in an optical receiver for receiving an optical signal that has been subjected to quadrature phase modulation, signal conduction is quickly established without using duplicate combinations of bit shifting and pattern changing. A control method that does not involve verifying the duplicate combinations generated in modulation formats and pattern synchronization search orders. Specifically, a signal check circuit (40) performs data verification of data multiplexed by a MUX circuit (38) for multiplexing two data strings, and a bit shift pattern change control circuit (41) controls a bit shift circuit (36) and a pattern changing circuit (37) based on a result of the data verification and detects a correct combination of correct regenerated data to establish the signal conduction. At this time, for the bit shift circuit (36) and the pattern changing circuit (37), the duplicate combinations are not verified.