Abstract:
PROBLEM TO BE SOLVED: To provide a method for applying plating onto a polymeric surface with improved adhesive properties and coverability. SOLUTION: A polymeric surface which has not perfectly been polymerized is applied with plating, and next, the plated surface is cured as well.
Abstract:
PROBLEM TO BE SOLVED: To form a printed circuit board provided with a plated resistor which is unified in a body with a circuit, by eliminating exposed copper by etching, plating an exposed region by using a mask for plating, and eliminating the mask for plating by stripping. SOLUTION: The surface of a copper-coated laminate having an insulating dielectric substratum 10 and a stuck copper foil 11 is eliminated by etching. By stripping resist 12, the surface of an arbitrarily exposed dielectric material surface is made uniform. Thereon a mask for plating is so applied that resist 15 for plating covers the whole surface except the region where a resistor 16 is to be plated. By stripping the mask for plating, the surface of a printed circuit board is arbitrarily cleaned, and a plated resistor 16 is covered with a protective film. Thereby the printed circuit board provided with a plated resistor 16 unified in a body with a circuit can be formed.
Abstract:
PROBLEM TO BE SOLVED: To provide a production method of a printed circuit board having integrally plated resistors. SOLUTION: This production method of a printed circuit board comprises: applying an etching resist to a part of a metal surface of a metal-coated laminated boards; forming a metal circuit by corroding and removing an exposed metal surface; peeling the resist; plating an exposed region of the core with a resister material having a volume resistivity of 500 to 1×10 -4 Ω cm; and trimming the resistable material so that the resistor has an insulating resistance equal to a predetermined ohm value. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method improving the solderability of the surface of a metal. SOLUTION: The surface of a metal is processed by immersion silver plating solution. The solution contains a) soluble source of silver ion, b) acid, c) aliphatic amine, aliphatic amide, quaternary salt, amphoteric salt, resin shape amine. resin shape amide, fatty acid, resin shape acid, ethoxyl conversion substance of an arbitrary one out of the above substances, propoxyl conversion substance of an arbitrary one out of the above substances and additives selected from a group consisting of the mixture of arbitrary ones out of the above substances.
Abstract:
A composition and process useful in fabricating circuitry packages with permanent resists is proposed. The proposed composition comprises a carboxy functional resin, an acrylate oligomer, an epoxy functional resin, a butadiene nitrile resin, and a photoinitiator.
Abstract:
A process and product manufactured by the process is revealed whereby resistors (16) can be manufactured integral a printed circuit board (10, 13) by plating the resistors onto an insulative substrate (10). Uniformization o f the insulative substrate by etching and oxidation of the plated resistor are revealed as techniques for improving the uniformity and consistency of the plated resistors.
Abstract:
A composition for stripping tin, lead or solder, as well as any underlying copper-tin alloy, from copper surfaces, containing an alkane sulfonic acid, preferably methane sulfonic acid, an inorganic nitrate, preferably ferric nitrate, and an inhibitor component. The composition effects rapid stripping without any appreciable formation of sludge or precipitate or suspended particles, and without any substantial attack on the underlying copper surface.
Abstract:
A process is revealed whereby resistors can be manufactured integral with a printed circuit board by plating the resistors onto the insulative substrate. Uniformization of the insulative substrate through etching and oxidation of the plated resistor are discussed as techniques for improving the uniformity and consistency of the plated resistors. Trimming and baking are also disclosed as methods for adjusting and stabilizing the resistance of the plated resistors.
Abstract:
The present invention is a process for manufacturing resistors integral with the printed circuit board by plating the resistors onto the insulative substrate. The invention uses a mask during the activation step so as to selectively activate only selected portions of the surface thus enabling smaller areas to be plated on the printed circuit board because no plating mask is used. The process of the instant invention produced printed circuit boards having greater uniformity and reliability as compared to the prior art.
Abstract:
SE REVELA UN PROCESO EN DONDE LAS RESISTENCIAS SE PUEDEN FABRICAR DE FORMA INTEGRADA CON LA PLACA DE CIRCUITO IMPRESO, COLOCANDO LAS RESISTENCIAS EN FORMA DE PLACAS (16) EN EL SUSTRATO AISLANTE (10). LA UNIFORMIZACION DEL SUSTRATO AISLANTE (10) POR MEDIO DEL DECAPADO CON ACIDO Y DE LA OXIDACION DE LA RESISTENCIA COLOCADA EN FORMA DE PLACAS (16) SE REVELAN COMO TECNICAS PARA LA MEJORA DE LA UNIFORMIDAD Y DE LA CONSISTENCIA DE LAS RESISTENCIAS COLOCADAS EN FORMA DE PLACAS (16).