Abstract:
An object is to reduce the influence of chlorine in plastics when the metal concentrations in the plastics are analyzed. In an X-ray analyzer including an X-ray generating part for irradiating primary X-rays onto a sample and an X-ray detector for detecting an X-ray from the sample, primary X-rays is irradiated onto a plastic sample from the X-ray generating part, the X-ray intensity of chlorine is obtained from the plastic sample by the X-ray detector, and the scattered X-ray intensity where the primary X-ray has been scattered by the plastic sample is obtained by the X-ray detector. A chlorine X-ray intensity ratio calculating means for dividing the X-ray intensity of chlorine by the scattered X-ray intensity to calculate a chlorine X-ray intensity ratio is provided. The calculated chlorine X-ray intensity ratio and the chlorine concentration in the plastic sample have positive correlation each other. A relative chlorine concentration calculating means adapted to calculate the relative chlorine concentration in the plastic sample from the chlorine X-ray intensity ratio is provided.
Abstract:
The invention relates to an adhesion assisting agent-bearing metal foil comprising a layer of an adhesion assisting agent containing an epoxy resin as an indispensable component on a metal, wherein the adhesion assisting agent layer has a thickness of 0.1 to 10 μm. The invention also relates to a printed wiring board being a multilayer wiring board having a plurality of layers, wherein an adhesion assisting agent layer is formed between insulating layers.
Abstract:
Based on drug sensitivity data and extensive gene expression data, a model was constructed by multivariate analysis with the partial least squares method type 1. Further, the model was optimized using modeling power and genetic algorithm. Thereby, the degree of contribution of the respective genes to drug sensitivity was determined to select genes with a high degree of contribution. In addition, the levels of gene expression in specimens were analyzed, and then the drug sensitivity was predicted based on the model. The predicted values agreed well with those drug sensitivity values determined experimentally. The drug sensitivity-predicting method provided by the present invention enables assessment of the effectiveness of a drug prior to administration using small quantities of specimens associated with diseases such as cancer. Since this enables the selection of the most suitable drug for each patient, the present invention is very useful in improving a patient's quality of life (QOL).
Abstract:
A semiconductor chip mounting tape on which external connecting terminals are formed in accordance with a layout pattern has post portions which are to be connected to a semiconductor chip and external connecting terminals. Post portions are formed on the first surface of an insulation tape used as a base of the semiconductor chip mounting tape. External connecting terminals are formed on the second surface of the insulation tape. The post portions and the external connecting terminals are integrally formed by same solder balls via through holes formed in the insulation tape.
Abstract:
A multi-chip package type semiconductor device includes a first insulating substrate having a hollow on its main surface, a second insulating substrate having on its main surface an opening, which is larger than the hollow, and being on the first substrate wherein the opening encompasses the hollow, a first semiconductor chip being formed in the hollow, a second first semiconductor chip whose size is approximately the same as that of the first semiconductor chip, being supported by the first insulating substrate in an area, which encompasses the hollow.
Abstract:
An adhesive for a vehicular glass is disclosed which comprises urethane as a base material added with 2% to 8% by weight of a thermoplastic resin. The thermoplastic resin may be a polyester-based resin. The adhesive is heated to a temperature of 60.degree. C.-80.degree. C. and then applied to a peripheral edge of a windshield. The windshield is sucked by a suction cup and pressed against a window frame of a vehicle body. Thereafter, the adhesive is cooled by blowing air having a temperature on the order of 20.degree. C. thereat. The adhesive is forcibly cooled down to 50.degree. C. or lower in a short time, thereby exhibiting temporary retention property.
Abstract:
A method of manufacturing a semiconductor device includes the steps of: patterning a first passivation film on a semiconductor substrate; patterning a ball limiting metal film; patterning a second passivation film; performing a heat-treatment for hardening the second passivation film and annealing the ball limiting metal film; patterning a bump forming metal film; and wet-back processing the bump forming metal film. In this method, the heat-treatment may be performed in an atmosphere having an oxygen concentration of 50 ppm or less at a temperature of from 300.degree. to 400.degree. C. for 10 to 30 minutes. Additionally, at least one of the first and second passivation films may be a polyimide film, and the ball limiting metal film may has a three layer structure of a Ti layer, a Cu layer and an Au layer laminated from the bottom in this order.
Abstract:
A metal foil for printed wiring boards comprising a first copper layer to be adhered to a resin, a second copper layer having a sufficient strength as a metal layer and a nickel-phosphorus alloy layer containing 1.1% by weight or more of phosphorus formed between the first and second copper layers is suitable for producing printed wiring boards having excellent heat resistance, particularly during production procedures.
Abstract:
A process for producing a printed wiring board characterized by forming a nickel layer by electroless plating and a copper layer formed thereon by electroless plating, or forming a copper undercoating layer before the nickel layer by electroless plating can produce printed circuit boards excellent in resistance to electrolytic corrosion and suitable for mounting parts in high density.
Abstract:
An X-ray radiographing system is provided with a table having a spot-film device which moves synchronously with an X-ray generator along a longitudinal axis (a patient's body axis) of the table. The spot-film device comprises a fluoroscopic area and a radiographic area arranged along a transverse axis at a front portion of the table. A film holder holding an X-ray sheet film (unexposed or exposed) shuttles along a transverse rail between the fluoroscopic area and a radiographic area. A feed magazine and a take-up magazine are provided under the fluoroscopic area. Unexposed X-ray sheet film is removed by suction cups from an opening in the feed magazine, and fed to the film holder. Exposed X-ray film is returned to the take-up magazine. Both the magazines can be loaded and unloaded from the front portion of the device.