摘要:
A means for highly precisely and economically fabricating wiring on a semiconductor and highly precisely and economically forming a bump on an electrodes. (1) A semiconductor device comprising a semiconductor, a metal foil for fabricating wiring, and conductor wiring on the semiconductor; and a method of fabricating a conductor wiring circuit on a semiconductor, comprising the steps of laying a metal foil for fabricating wiring on the electrode-forming side of the semiconductor, forming a resist wiring pattern by photo-etching the metal foil, etching the metal foil, and removing the resist to form the wiring. (2) A semiconductor device which comprises a multilayer metal foil for fabricating wiring in place of the metal foil for forming wiring of the semiconductor device described in (1); and a method of fabricating conductor wiring having a bump on a semiconductor, comprising the steps of the method described in (1) and further comprising the steps of forming a resist pattern for forming the bump by photo-etching the multilayer metal foil for forming the wiring, forming a bump by selective etching, and removing an etch-stop layer.
摘要:
A method of manufacturing a high-quality metal foil/ceramics joining material (19) and a metal foil laminated ceramic substrate (20) which can prevent a damage to a ceramic material and enhance the productivity of the metal foil/ceramics joining material and the metal foil laminated ceramic substrate, wherein a ceramic material (13) is heated before a metal foil (11) and the ceramic material (13), both ion-etched, are pressure-joined to ensure an easy and positive subsequent pressure-joining and the ceramic material (13) can be prevented from being broken because the ceramic material (13) is heated while being placed on a holder (14) and is pressure-joined under a pressure of 1 kg/cm or lower.
摘要:
A laminated plate formed of a base material and a high molecular plate laminated with each other without using adhesive agent and a part using the laminated plate, wherein the laminated plate is formed by laminatedly sticking the base plate to the high molecular plate after applying an activating treatment onto the opposed surfaces of the base plate and the high molecular plate, and the part is formed by using the laminated plate.
摘要:
A safety valve element for batteries which can be stably and accurately burst at a prescribed pressure, especially at a low pressure, so as to release the internal pressure of a battery and can be manufactured easily. A battery incorporating such a safety valve element is also disclosed. The safety valve element comprises a metallic substrate (A) having a through hole (C) and metallic foil (B) which is provided on the substrate (A) so to close the hole (C). A battery provided with a safety valve element is also disclosed. A battery case cap with a safety valve is manufactured by forming the metallic substrate (A) after the hole (C) is formed through the substrate (A) and the foil (B) is press-joined to the substrate (A). A battery using such case cap is also disclosed.
摘要:
A structure of a multilayer printed wiring board having a wiring lead-out port can be easily formed. A large number of products can be easily manufactured with good size reproducibility. A method of manufacturing the same is also are disclosed. The multilayer printed wiring board is characterized by having a signal circuit conductor perfectly covered by an earth circuit in its inside and a wiring lead-out port. A signal circuit conductor having a branch pattern is preferable. The multilayer printed wiring board is manufactured by selectively etching the copper of a cladding sheet manufactured by bonding a copper foil to a nickel foil with 0.1 - 3% draft and forming a signal circuit conductor perfectly covered by an earth circuit and the wiring lead-out port.
摘要:
A printed wiring board which can equalize as much as possible the circuit widths of a signal transmission circuit and a power supplying circuit or the like that have required designs of circuit widths to be different significantly and which can be substantially downsized, and a production method therefor, wherein the printed wiring board can be obtained by etching a metal clad laminate plate containing a conductive layer and an insulation layer, and the printed wiring board, where a first circuit and a second circuit formed on the same reference flat surface and being different in thickness coexist, is used. The printed wiring board is characterized in that the first circuit or the second circuit, whichever is thicker, has a clad form where three layers, a first copper layer/a metal-of-different-kind layer/a second copper layer, are sequentially laminated one upon another. The production method for the printed wiring board is characterized by using as a starting material a clad composite material in which three layers, a first copper layer/a metal-of-different-kind layer/a second copper layer, are sequentially laminated one upon another, and by effectively using etching characteristics selecting between the metal-of-different-kind layer and a copper layer.
摘要:
A method for manufacturing a gas separating unit which comprises laminating a metal plate on a material capable separating a hydrogen gas (palladium alloy fo il) by cladding, etching selectively a central portion of a cut clad plate (K) using an etching solution, to thereby expose an underlying palladium alloy foil layer, and providing a metal supporting plate on the other side of the palladium alloy f oil layer. The method allows the manufacture of a gas separating unit having an enhanced effective area of a material capable of separating a hydrogen gas and is excellent in the handlability of a material capable of separating a hydrogen gas during manufacturing.
摘要:
A method of manufacturing a multilayered printed-circuit board and a low-cost clad board. Copper foil layers (19, 24, 33) for forming conductor layers (10, 17, 18) and nickel plating layers (20, 21) for forming etch stop layers (11, 12) are alternately stacked and compressed to form a clad board (34) for a printed-circuit board. The clad board (34) for the printed-circuit board is selectively etched to manufacture a base. External conductor layers (15, 16) are formed on the surface of the base and patterned. The conductor layers (10, 15, 16) are interconnected electrically through conductors blocks (17, 18) formed by etching the copper foil layers (19, 24, 33) and the nickel plating layers (20, 21) to complete the manufacture of multilayered printed-circuit board.
摘要:
A film which has a multilayered metal and is obtained by bonding a polymer film having a thin metal film formed on a surface thereof to a metal foil having a given thickness without using an adhesive. It has a given thickness and is adhesive-free. The film having a multilayered metal is obtained by preparing a polymer film having a thin metal film superposed on a surface thereof, activating both the surface of the thin metal film and a surface of a metal foil, and press-bonding the activated thin-metal film surface to the activated metal foil surface.