摘要:
An ESD (Electrostatic Discharge) analysis device includes: a circuit simulation unit; a border cell extraction unit; and a check unit. The circuit simulation unit executes a circuit simulation of design data of a semiconductor integrated circuit including a plurality of circuits of a plurality of power supply systems, to calculate potentials in a plurality of current paths between pads of different two of the plurality of power supply systems, when one of an ESD current and an ESD voltage is applied between the pads. The border cell extraction unit extracts border cells from circuits of the different two of the plurality of power supply systems, wherein the circuits are included in the plurality of circuits, the border cells input and/or output signals between the circuits. The check unit checks an ESD tolerance by calculating a potential difference between the border cells, based on the calculated potentials, the extracted border cells.
摘要:
A semiconductor device includes a semiconductor substrate which includes a functional circuit, a trunk wiring which passes through a portion near a position immediately above a center portion of the functional circuit, a power supply pad which is connected to an end of the trunk wiring and placed at a layer level which is same as a layer level where the trunk wiring is placed, and a connection wiring which connects a substantially center portion of the functional circuit and the trunk wiring.
摘要:
The present invention aims to offer a urea grease composition which excels in noise performance, has long life at high temperatures and, further, also provides the basic performance of greases such as shear stability and heat resistance, as well as appropriate oil separation properties. The present invention provides a urea grease composition comprising: a diurea compound as shown by the General Formula (A) below: R11 NHCONHR12NHCONHR13 . . . (A), (where R11 and R13 are groups selected from the group consisting of hydrocarbon groups having from 6 to 20 carbons, at least one of R11 and R13 is a dodecyl group and R12 is a diphenylme thane group); and a diurea compound as shown by the General Formula (B) below: R21 NHCONHR22NHCONHR23 . . . (B), (where R21 and R23 are groups selected from the group consisting of hydrocarbon groups having from 6 to 20 carbons, at least one of R21 and R23 is an oleyl group, and R22 is a diphenylmethane group).
摘要:
A semiconductor device includes a semiconductor substrate, a first lower-layer line for supplying power to a transistor formed on the semiconductor substrate, a first interlayer line which is connected to the first lower-layer line, and an allowable current of which is larger than that of the first lower-layer line; and an upper-layer line which is provided above the first interlayer line and receives power input from outside. The first interlayer line is connected to the upper-layer line through a switch circuit formed on the semiconductor substrate.
摘要:
A process of producing expandable styrene resin particles, wherein in suspension polymerization of styrene monomers, the concentration of oxygen in a reaction vessel is kept low at least in a late stage of the polymerization, and the resulting styrene resin particles are impregnated with an expanding agent before or after completion of the polymerization. Preferably, at a polymerization rate of 60% or higher, the concentration of oxygen in the reaction vessel is kept at 7 vol % or lower. When additional styrene monomers are added during the polymerization, they are added and adsorbed to styrene resin particles in the course of polymerization while the concentration of oxygen is kept low. By this method, the particles whose internal portion has a low molecular weight and surface portion has a high molecular weight are obtained. A foamed article produced from the particles has high strength and a good appearance.
摘要:
Use of a lubricating grease composition-comprising: (A) base oil selected from mineral oil, synthetic oil or mixtures thereof; (B) one or more urea compounds; and (C) one or more metal salts of a fatty acid wherein the metal is selected from the group consisting of aluminium, magnesium, zinc, calcium and mixtures thereof, in order to reduce fretting corrosion.
摘要:
A process of producing expandable styrene resin particles, wherein in suspension polymerization of styrene monomers, styrene monomers are added to be adsorbed to styrene resin particles in the course of polymerization, while the concentration of oxygen in a reaction vessel is kept at 7 vol % or lower in a late stage of the polymerization, and the resulting styrene resin particles are impregnated with pentane as a foaming agent. The molecular weight in the outside of the particles obtained is selectively higher. The impregnation of pentane enables the particle to have low VOC (low volatile organic compound) properties. Furthermore the expanded particles have excellent appearance and strength since the outside thereof has a high molecular weight.
摘要:
2-(&ohgr;-alkoxycarbonyl alkanoyl)-4-butanolide is produced with a high selectivity and yield through condensation reaction of Y-butyrolactone with a readily available, low-price dicarboxylate as represented by the following general formula: ROOC(CH2)nCOOR wherein n denotes an integer of 8-13, and R denotes an alkyl group or an alkenyl group.