Printed Wiring Boards Maker Materials for printed circuit boards deposited on the surface of a copper-clad base material that prevent the removal by etching of the conductive areas they cover.

... of PCBs often leads to the question as to which surface protection is the right one. This is partly due to the changing technical | PRINTED WIRING BOARDS MAKER | demands on PCBs in further processing. Also, as of 1. 6. 2006, EU-Regulations restricting the use of dangerous materials in electronic appliances are to include | PRINTED WIRING BOARDS MAKER | the prohibition of materials containing lead, and is, therefore, another reason why alternative surfaces have been developed. One of these is immersion tin. Procedure A | PRINTED WIRING BOARDS MAKER | layer of tin is applied to the PCB by means of a special process, in which the copper atoms of the exposed conductors and contact | PRINTED WIRING BOARDS MAKER | areas are exchanged for tin atoms by adding thiourea. The chemical reaction ends when the copper surface is 0,6 to 1,2 my. Between the tin | PRINTED WIRING BOARDS MAKER | and copper layers there is an inter-metallic copper-tin phase after this process, i.e. blended metal. There are a number of reasons in favour of applying | PRINTED WIRING BOARDS MAKER | tin chemically. One advantage is the uniform smoothness of the surface. This feature enables the ...
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... to our own innovative automation concepts, flexibility and our will to be the best, is able to produce PCBs at highest possible level of | PRINTED WIRING BOARDS MAKER | quality at prices, being competitive worldwide. As the role of pcp`s gets more and more decisive for the business success in times of shortening time | PRINTED WIRING BOARDS MAKER | to market cycles, the pcb offers more potential for saving money than than the price per unit: Our service & advisory concept help you to | PRINTED WIRING BOARDS MAKER | launch your product on the market "on the first hit". | ADVISORY PARTNERSHIP | In our Computer | AIDED PRODUCT ENGINEERING (CAPE) | Department the | PRINTED WIRING BOARDS MAKER | work is engineered and panellised through one of the latest computer front-end systems (panellisation is the stepping-up of a single circuit into multiple form for | PRINTED WIRING BOARDS MAKER | the most cost efficient processing). Following capability assessment, design rule checking and panellisation the Tooling Package required for manufacture is generated and released to Production.. | PRINTED WIRING BOARDS MAKER | We do not need | A PRICE "POLICY" | as we use a sensitive - ...
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... on all commonly used laminate materials, PWB complexities and in a variety of operating conditions. Production-proven in both vertical and horizontal process equipment, the | PRINTED WIRING BOARDS MAKER | versatile system yields total process cost reduction Panel Plating a Flash of Copper The panels are online in a wet state transferred to our automatic | PRINTED WIRING BOARDS MAKER | electrolytic copper plating lines to get a flasch of copper.. The panels are attached to plating racks. When the racks are moved to the loading | PRINTED WIRING BOARDS MAKER | station, the system computer instructs the hoist to pick up the rack and begin the plating cycle. The copper plating time is approximately one hour. | PRINTED WIRING BOARDS MAKER | Electrolytic copper of minimum thickness 12 microns is deposited on the surface of the panel and on the walls of the drilled holes. This is | PRINTED WIRING BOARDS MAKER | achieved by applying an electric current to a cell comprising the panel (the cathode) and a set of copper bars (the anodes) suspended in a | PRINTED WIRING BOARDS MAKER | conducting medium (the electrolyte). A plating history log is maintained on the shop floor ...
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