摘要:
Material jet system, comprising a container for molten jet material (3) to be ejected, heating means (4) e.g. arranged for induction heating, for melting and/or keeping molten said jet material, and jetting means (5, 6, 7) which are arranged to form and eject droplets (8) of said jet material. The system, moreover, comprises means (2) which are arranged for an uninterrupted supply of said material, e.g. a metal, in solid form (1), which preferably have the shape of a wire, bar or tape. Overflow means (9) may be arranged to provide that contaminations floating upon the molten jet material runs over in a waste reservoir (10). Control means (14) may provide that, in order to remove the contaminations, the supply of the solid material is increased temporarily, causing that the floating contamination runs over in the waste reservoir. A valve (11) may be closed when detaching the waste reservoir. Level monitoring means (13, 14) may monitor the molten material maximum and minimum level in the container.
摘要:
In a jetting device for ejecting droplets of a relatively hot fluid, a fluid chamber body is made of a heat resistant material and an inner surface of the fluid chamber body, the inner surface defining a fluid chamber of the jetting device, is wettable by the fluid. This configuration provides that no additional force needs to be applied for forcing the fluid into an orifice, i.e. a narrow tube leading towards a nozzle.
摘要:
A method for making an electric interconnection between two conducting layers, separated by at least one insulation or semi-conducting layer, which includes forming a stud extending between at least the lower conducting layer and the upper conducting layer, where the nature and/or the shape of the stud impart non-wettability properties relative to the material used for the separating layer.
摘要:
PROBLEM TO BE SOLVED: To provide a method of manufacturing a substrate for power module where there is obtained high junction strength between a metal plate and a ceramics substrate. SOLUTION: The method of manufacturing the substrate for power module includes a melting step and a solidification step. In the melting step, a metal plate (22, 23) consisting of ceramics substrate (11) and pure aluminum is prepared; the ceramics substrate (11) and the metal plate (22, 23) are stacked via a brazing material(24, 25); and the brazing material (24, 25) are melted by heating to form melted aluminum layer (26, 27)on a boundary between the ceramics substrate (11) and the metal plate (22, 23). In the solidification step, the melted aluminum layer (26, 27) are solidified by cooling, thereby enabling crystal growth according to the crystal plane orientation of the metal plate (22, 23), when the melted aluminum layer (26, 27) are solidified. COPYRIGHT: (C)2009,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a substrate for mounting an electronic component in which an electronic component, e.g. a semiconductor chip, can be fixed to a metal-ceramics bonding substrate without using solder, and to provide its producing process. SOLUTION: In the process for producing a substrate for mounting an electronic component where a heat dissipation metal base plate 12 is bonded to one side of a ceramics substrate 10 having the other side bonded with a circuit metal plate 14 and an electronic component 16 is fixed to the other side of the circuit metal plate, the ceramics substrate and the electronic component are arranged in a mold while spaced apart from each other, metal molten is poured to touch the opposite sides of the ceramics substrate and the electronic component and then the metal molten is cooled and solidified. The heat dissipation metal base plate is formed on one side of the ceramics substrate and bonded directly, the circuit metal plate is formed on the other side of the ceramics substrate and bonded directly on one side, and the electronic component is bonded directly to the other side of the circuit metal plate when the circuit metal plate is formed. COPYRIGHT: (C)2005,JPO&NCIPI
摘要:
PROBLEM TO BE SOLVED: To provide a method capable of filling a fine space with a hardened metal without causing a gap or void; to provide a method capable of preventing unevenness of the hardened metal cooled in the fine space; and to provide a method capable of contributing to simplification of processes and improvement of yield. SOLUTION: The method for filling a molten metal 4 into a fine space 21 present in an object 2 to be processed and hardening the metal includes: the steps of filling the molten metal 4 from an opening surface opened on the fine space 21 into the inside, and cooling the molten metal 41 filled in the fine space 21 in a state that a forcible external force F1 exceeding atmospheric pressure is applied and hardening the molten metal. COPYRIGHT: (C)2010,JPO&INPIT