摘要:
A multiple-cell insulated-gate-bipolar-transistor chip is disclosed which includes a semiconductor substrate having formed therein a p+-type collector region and an n−-type base region, with a pn junction therebetween. An annular trench is etched in the substrate so as to surround the array of IGBT cells. Received in the trench are a dielectric layer which is held against the base region, and an electroconductive layer which is held against the base region via the dielectric layer and which is electrically coupled to the collector region. When the pn junction between the collector and base regions is reverse biased, the electroconductive layer creates at the annular periphery of the base region a depletion layer which is joined to a depletion layer created in the base region by the pn junction, thereby preventing current leakage from the side surfaces of the IGBT chip.
摘要:
A semiconductor device has a semiconductor base, an anode electrode, and a cathode electrode. The semiconductor base includes a P type semiconductor substrate, an insulating film, an N− type semiconductor region formed on the insulating film, an N+ type semiconductor region, and a P+ type semiconductor region facing the N+ type semiconductor region via the N− type semiconductor region. The semiconductor device further has an N type diffusion layer which is formed, in the N− type semiconductor region at the interface between the insulating film and the N− type semiconductor region, so as to have a concentration gradient such that the N type impurity concentration increases from the side of the anode electrode to the side of the cathode electrode.
摘要:
A vapor vent valve for a fuel pump module, wherein the valve assembly attaches directly to the bottom side of the fuel pump module flange within the interior volume of the fuel tank. When rising fuel exerts a force on the valve assembly pushing the float assembly upwards, the valve head attached to the float assembly seals directly against a valve seat on the underside of the modular flange, covering the vapor release aperture located through the flange, preventing fuel from escaping through the vent aperture. In providing a direct seal of the valve head against the modular flange, additional sealing means and potential emission sources between the valve housing and the modular flange are eliminated.
摘要:
A multiple-processor system uses transfer blocks each having a size equal to or less than the capacity of a shared memory when transferring data from a master system to a slave system via the shared memory. Each transfer block includes a data to be transferred from the master system or a plurality of divisional data obtained by dividing the data to be transferred; information representing a writing-start address at which the data to be transferred or the plurality of divisional data starts to be written in storage for the slave system; and information representing the length of the data or the plurality of divisional data.
摘要:
This invention is a method for producing an electrode for a non-aqueous electrolytic cell, in which a collector is coated with an electrode active material layer comprising an active material, flake graphite and a binder, which is characterized by that the graphite is subjected to a pulverization process twice or more, followed by mixing and pulverization using the active material, and provides an electrode for a secondary cell which is good in charge and discharge characteristics such as discharge capacity and charge and discharge cycle life, and improved in physical characteristics.
摘要:
An LSI having a logic circuit and a test circuit is provided with a first register which is connected between an LSI input/output pin and the logic circuit and has a first input terminal to be outputted from the first register in accordance with a system clock signal and a second input terminal, a second register which has a first input terminal inputted with an output of the first register and a second input terminal inputted with scan-in data and an output of which is connected to the second input terminal of the first register, a selector circuit which is connected to one of the first input terminal of the second register and the second terminal of the first register and selects one of a signal relating to scan-out data and an output signal of the other register so that the selected signal is inputted to the one input terminal, and a third register which receives an output of the second register and provides the received output as scan-out data in accordance with another clock signal. An output of the third register is successively provided to another LSI input/output pin. The selector circuit includes a logic gate circuit inputted with a signal indicative of an LSI test mode and the output signal of the other register.
摘要:
A central terminal (40) is provided in the central mount (9) of the plugging cavity (4) for contact with the plug terminal (85) of the lamp plug (B). An outer terminal (50) and a check terminal (70) are provided in the outer mount (10A) and the check mount (10B), respectively, for contact with the annular contact (88) on the side wall of the lamp plug (B).
摘要:
The press-fit section 31 is made up of a lance member 33 for engagement with the latch apertures 26a and 29b of terminal legs 26 and 29 of central and peripheral terminals 3 and 4 and a press-fit portion 36 formed by a pair of linear protrusions 34L and 34R and a pair of pressdown pieces 35L and 35R so that by engaging the lance member 33 with the latch apertures 26a and 29b and holding the terminal legs 26 and 29 between the pressdown pieces 35L and 35R and the linear protrusions 34L and 34R, the terminal leges 26 and 29 are connected to the press-fit terminal 5 with the crimping section 30 crimped on an electrical wire 39.
摘要:
A delayed-pulse generator formed by a combination of a comparator, a current-mirror circuit, a capacitor, a switching transistor and a constant-current source further has a transistor whose emitter and base are connected together and which is connected in parallel and in forward-direction with respect to the constant-current source. A charging current of a very small value can be set stably without being affected by the leakage current flowing in the switching transistor even in a high temperature operation. Thus, a pulse having a long delay time can be readily obtained. In addition, an erroneous operation caused by the leakage current flowing in the switching transistor can be effectively suppressed.
摘要:
Appearance of joints between partly overlapping picture signal segments from a plurality of solid-state image scanners can be effectively avoided by means of automatically phase-setting the scan start signals for the respective image scanners relative to each other so that the logical sum signal of the marker signals contained in the respective signal segments is minimized in width. The marker as a source of the marker signals is fixedly arranged on the original-copy supporting table or separately therefrom in the region of overlap of the scan ranges of adjacent image scanners.