摘要:
The invention provides a very efficient and reliable method for electrically connecting the electrodes of an electronic device, e.g., IC chips, and the electrodes of, for example, a glass-made circuit board substrate with good repairability. Thus, the electrodes of the IC chip are each first coated with an electroconductive thermally meltable adhesive resinous composition to form a resinous bump, the IC chip is mounted on the substrate with the adhesive-coated electrodes contacting with the respective electrodes of the substrate, and remelting and then solidifying the resinous bumps so that the electrodes are bonded and electrically connected together. As compared with the conventional methods in which an electroconductive thermosetting resinous composition is used for the bumps on the electrodes, the electrical connection can be obtained with a smaller thermal effect and good replaceability of the IC chip found unacceptable with an acceptable one.
摘要:
The pressure-sensitive resistor comprising an electroconductive elastomer, in which an electroconductive particulate material is dispersed, two electrodes placed on the opposing surfaces of the elastomer, a means for providing a compressive force between the electrodes and a means for adjusting the compressive force, works on a novel principle that the elastomer composite exhibits a positive coefficient in the curve of compression vs. resistance relationship when the compressive force is varied in a region exceeding an inversion point at which the resistance of the elastomer as measured in the direction of compression is minimal. The coefficient in this positive region is smaller than in the ordinary negative region, so that the variable resistance of the resistor can be controlled very delicately together with the decreased contribution of the uncontrollable contact resistance.
摘要:
Even in the case of an information processing apparatus different from a computer usually used by a user, the same kana-kanji conversion candidates as the computer are acquired without unifying Japanese-language converting programs and unifying usage environments. The computer comprises a kana-kanji converting portion that receives a character string from an information processing apparatus through a network to return conversion candidates. The apparatus displays the conversion candidates.
摘要:
The present invention provides an acrylic resin composition dispersed in water giving good appearance, having sufficient dispersion stability, providing coating film physical properties excellent in durability and weather resistance and also capable of properly dealing with the recent environmental issues, and a two-component coating composition set using such an acrylic resin composition dispersed in water. The above-mentioned acrylic resin composition dispersed in water comprises an acrylic resin containing a carboxyl group-containing monomer and a hydroxyl group-containing monomer, a water-dispersible isocyanate compound, and a specific compound as a neutralizing base.
摘要:
A hybrid magnetic bubble memory device comprising soft magnetic material propagation tracks and ion-implanted propagation tracks. In the soft magnetic material propagation track region, a layer made of a heat-resistant polymer was provided as an interlaminar insulating layer between a conductor and a pattern of a soft magnetic material. An insulator film made of a heat-resistant polymer was provided on the pattern made of a soft magnetic material. A passivation film made of an inorganic material was provided on the ion-implanted propagation tracks and the insulator film made of a heat-resistant polymer.
摘要:
Even in the case of an information processing apparatus different from a computer usually used by a user, the same kana-kanji conversion candidates as the computer are acquired without unifying Japanese-language converting programs and unifying usage environments. The computer comprises a kana-kanji converting portion that receives a character string from an information processing apparatus through a network to return conversion candidates. The apparatus displays the conversion candidates.
摘要:
Embodiments of the present invention pertain to a magnetic head that includes negative expansion material. According to one embodiment, the magnetic head includes a read element, a substrate, and at least a partial layer of negative expansion material to control, at least in part, a fly height between an air bearing surface associated with the magnetic head and a disk surface. The material is manganese nitride based and non-insulating and the layer of negative expansion material is parallel to the substrate, according to one embodiment.
摘要:
An engine controller controls a plurality of devices in an image forming engine. The engine controller includes a communication interface to perform data communication with the main body controller, and a storage section for storing information. The storage section stores a character string-bit order lookup table, in which the order of arranged data for part of or all of a plurality of bit information items regarding a plurality of devices is associated with a plurality of character strings identifying the bit information items. A character string obtaining section sends out data with the character strings arranged in accordance with the arranged order, via a communication interface to the main body controller.
摘要:
The present inventors provides polyol-containing resin compositions for coatings which can give cured coating films having high hardness and at the same time high solid compositions to meet the recent resources saving and/or environmental protection requirements, and curable coating compositions having high reactivity at curing, giving the coating film with good appearance and the coatings with prolonged pot life. The invention is directed to a resin composition for coatings comprising a polyol (A1) or (A2), a polyether polyol (B) and a solvent (C), wherein the polyol (A1) comprises a hydroxyl-containing polymerizable unsaturated monomer and a ring structure-containing polymerizable unsaturated monomer as essential components and the polyol (A2) comprises a hydroxyl-containing polymerizable unsaturated monomer and a linear branched structure-containing polymerizable unsaturated monomer as essential components.
摘要:
A magnetic disk drive has a housing for a 3.5 inch form factor and disk media of a diameter for a 2.5 inch form factor. The smaller disk media rotate at a high speed while consuming low electric lower and generating less heat while providing for quick access speeds. Usually, when the magnetic disk media are rotated at a higher speed, the electric power consumption and heat generation are increased because of the load increase. This problem is avoided with the use of cooling fins placed about the periphery of the disk media. Further, the smaller size disk media enable a decrease in torque loss during on-load rotation with the media, and a decrease of electric current to the spindle motor during rotation.