Abstract:
In order to inhibit the connection failure due to the degradation of the connection interface strength of the electrode pad and the warp thereof in the semiconductor device having an electrode pad, a metal layer formed on the electrode pad, and a metal bump formed on the metal layer, in the present invention, gold (Au) is contained in the metal layer, the metal bump is made of solder mainly made of Sn and designed to have an average height H of 100 μm or less per unit area in the electrode pad, and the concentration of Au of the metal layer dissolved in the solder is set to 1.3×10−3 (Vol %) or less. More preferably, the metal bump contains palladium (Pd), and the solder coating for forming the metal bump on the electrode pad is performed by using the dipping and the paste printing in combination.
Abstract:
In an information providing system, a condition notifying part is provided by a providing part to the user terminal with information that is in accordance with a request of the user terminal, is activated in a user terminal connecting to the information providing system via a network and notifies of a condition of the user terminal. In addition, a session management part manages session information in accordance with the condition of the user terminal notified by the condition notifying part activated in the user terminal. A session between the information providing system and the user terminal is established when the user is authenticated in accordance with authentication information from the user terminal and the session information managed by said session management part.
Abstract:
A AC type plasma display apparatus has been disclosed, which satisfies various requirements such as the number of gradations that can be displayed, the display luminance, and the upper limit of power and, further, the efficiency of light emission and the luminance can be increased as much as possible and the display quality of which is not deteriorated. In the plasma display apparatus, a frame is composed of plural subfields, an image is displayed by causing a sustain discharge to occur in each subfield, the sustain discharge can be caused to occur by at least a first sustain waveform and a second sustain waveform different from the first sustain waveform, and the ratio of the first sustain waveform to the second sustain waveform changes, both waveforms being used to cause the sustain discharge to occur in each subfield.
Abstract:
A molding made of a thermoplastic resin composition that comprises a thermoplastic resin component and an elastomer component partly blending in with each other is continuously heated at a temperature higher than 120° C. but lower than a melting point of each of the two components for at least one hour so as thereby to cause the thermoplastic resin component to separate and precipitate in the elastomer component.
Abstract:
A capacitor (1) using a flexible substrate (2) includes a hole portion (6a) formed in a dielectric (6) to connect an upper electrode (7) to an external leader electrode (4). At least part of the hole portion (6a) extends from its lower end to upper end at an inclination between 0.1 and 20° with respect to a top surface of the external leader electrode (4). Then, an upper end corner of an inclined wall surface of the upper electrode (7), which inclines along the hole portion (6a) of the dielectric (6), has a downward inclination between 0.1 and 20°. A lower end corner of the inclined wall surface of the upper electrode (7), which inclines along the hole portion of the dielectric (6), has an upward inclination between 0.1 and 20°. As a result, stress concentration on the corners of the upper electrode (7) is drastically reduced to prevent the upper electrode (7) from cracking.
Abstract:
A plasma display panel has a good productivity of partition formation and air exhaustion process and realizes a bright and stable display. A discharge gas is filled in a gap between two substrates. A mesh-patterned partition is arranged on the inner surface of one of the substrates for dividing the gap into plural squares corresponding to a cell arrangement. The partition has low portions forming a mesh-like air path that travels through all of the gas-filled space enclosed by the partition, in a plan view.
Abstract:
A catalytic base material for an exhaust gas purifying catalyst is produced by impregnating ceria powders with a barium contained solution and heating the ceria particles at approximately 400 to 1100° C. to create and accumulate barium oxides fixed to surfaces of the ceria particles.
Abstract:
In a wet-chemical treatment of a semiconductor substrate with a chemical treatment fluid containing ammonia and hydrogen peroxide, an experiment is carried out in a system where the concentrations of chemical species are known, to experimentally previously determine a relation between an etching rate of an SiO2 film with a mixture of ammonia and hydrogen peroxide and the concentrations of the dissolved chemical species (calculated by a chemical equilibrium analysis) or the temperature of the chemical treatment fluid, and the determined relation is then expressed. The concentrations of the chemical species are calculated by the chemical equilibrium analysis on the basis of values measured by a chemical treatment fluid composition monitor at a suitable interval and values measured by a fluid temperature sensor, and in accordance with the expressed relation, the etching rate of the SiO2 film with the chemical treatment fluid is calculated at the suitable interval. This result is fed back to a replenish mechanism of a wet-chemical treatment apparatus to regulate the amounts of the chemicals, thereby controlling the concentrations of the chemical treatment fluid. In consequence, there can be provided a wet-chemical treatment method which can stably treat the semiconductor.
Abstract:
Methanol is produced by reacting carbon monoxide and hydrogen in the presence of a Raney copper catalyst containing 80 to 99.9 wt. % of copper in a solvent. The catalysts employed in the present invention showed a much higher activity even under the conditions of a low temperature in methanol production, than any of the known catalysts. The process of the methanol production may eliminate necessity for recycling an unreacted synthesis gas into the reaction system, and makes it feasible to conduct methanol synthesis at a lower pressure than conventional processes.
Abstract:
An electronic dealing system which performs foreign exchange transactions among banks etc. by matching terms of sale and terms of purchase, provided with a leave-order function whereby a dealing terminal may continue to place orders on the market and automatically perform transactions even after log-out processing. This enables transactions to be safely performed even when the operator is not present.