Abstract:
PROBLEM TO BE SOLVED: To prevent bonding wires from being disconnected by warpage of a circuit board due to a difference between the thermal expansion coefficients of the circuit board, a semiconductor element, a molding resin for sealing and the like, by a method wherein the bonding wires are constituted of conductive rubber. SOLUTION: A semiconductor element 12 is mounted on the surface on one side of the surfaces of a circuit board 11, and connection terminals 11a on the board 11 and connection electrodes 12a on the element 12 are electrically connected with each other through bonding wires 13. Moreover, a molding resin 14 is formed only on the surface on one side of the surfaces of the board 11 in such a way as to cover the board 11, the element 12, the bonding wires 13 and the like. The wires 13 in such a semiconductor device 10 are constituted of conductive rubber. As the conductive rubber, one formed by mixing carbon powder in a synthetic rubber material or a natural rubber material, for example, or the like can be utilized. It is preferable that bonding wires of a comparatively low elastic modulus are formed by selecting the rubber material.
Abstract:
PROBLEM TO BE SOLVED: To provide a liquid lens that has a low modulus of volume change due to liquid swelling of a deformation film, has no liquid exudation, is chemically stable, and is capable of securing a large variable-focus range. SOLUTION: The lens has a pair of transparent members 2 and 3, at least one of which is formed of a deformation film which is capable of deformation, and a transparent liquid 4, which fills a sealed space 5 sandwiched between the pair of transparent members 2 and 3, with the deformation film 3 and the liquid 4 which is configured with the following combination of materials. (1) A fluorine-based elastomer film and silicone oil which does not have affinity for the fluorine-based elastomer film. (2) Preferably, a fluorine-based elastomer film and a silicone oil with a molecular weight of 500 or higher and a viscosity of 50 (25°C mm 2 /s) or greater. (3) Preferably, a fluorine-based elastomer film and a methylphenyl-based silicone oil or a dimethyl-based silicone oil with a molecular weight of 500 or higher and a viscosity of 50 (25°C mm 2 /s) or greater. (4) A polyurethane-based elastomer film and a dimethyl-based silicone oil. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a photosensitizing dye capable of preventing deterioration in photoelectric conversion efficiency when used for a thermo dye sensitized photoelectric conversion element, and a dye sensitized photoelectric conversion element including the photosensitizing dye.SOLUTION: In a dye sensitized photoelectric conversion element, an electrolyte layer is provided between a porous photo electrode and a counter electrode, and a photosensitizing dye is bonded to the porous photo electrode. For the photosensitizing dye, a dye having a carboxyl group as a functional group represented by the following formula or the like, and a ruthenium polypyridine complex having two thiocyanate ligands, at least one of which is substituted by an N-butyl benzimidazole group, as a ligand, is used.