Multilayer Circuit Board A separation between any of the layers of a Printed Circuit Board (PCB) or between the laminate and the conductive foil, or both.

... Therefore, the self-centralising effect is noticeably lower and requires greater precision of solder paste pressure. In addition, the test for soldering ability showed that | MULTILAYER CIRCUIT BOARD | emphasis should be placed on a suitable flux agent, as this, in addition to the thermic effect, also leads to the removal of the OSP | MULTILAYER CIRCUIT BOARD | layer. In Europe, there is a lack of enthusiasm for OSP, especially due to the great demands made on the flexibility of lead-free surfaces, plus | MULTILAYER CIRCUIT BOARD | the need for multi- soldering using a variety of thermic processes with standard flux agents. DIFFERENT INDUSTRIAL STRUCTURES – DIFFERENT SURFACES It is, therefore, not | MULTILAYER CIRCUIT BOARD | surprising that, especially in Asia, OSP is as popular as chemical tin is in Europe, or chemical silver in the US. An environment of mass | MULTILAYER CIRCUIT BOARD | production with long-term planning – often in-house – using a single thermic soldering process makes OSP the absolute favourite. As long as Europe is oriented | MULTILAYER CIRCUIT BOARD | towards flexible, small series equipment with a variety of special ...
[ Multilayer Circuit Board ]


... CIRCUIT BOARDS | We search for Added Value Reseller Since 1977 we are a non-captive family owned manu- facturer of Printed Circuit Boards with | MULTILAYER CIRCUIT BOARD | about 100 employees, successfully provides the electronic industry of various sectors like automotive, telecommunication, medical devices, aviation appliances and computer networking. We have ambitious aims | MULTILAYER CIRCUIT BOARD | targeting at expanding our business all over europe and are looking for professional resellers. Take the chance of our | RESELLER-DISCOUNT-PROGRAM |: Our core business | MULTILAYER CIRCUIT BOARD | ranges from single sided up to 14-layer Multilayer Boards manu- factured in various technologies by meeting customer´s expectations with regard to quality, costs, service and | MULTILAYER CIRCUIT BOARD | performance, the most prominent of which is the Delivery-On- Time- System providing quick-turn-arounds for prototypes as well as for volume demand (RMP Rapid Massive Production). | MULTILAYER CIRCUIT BOARD | | WE ARE SEARCHING FOR RESELLERS | doing business in assembly, System Providers (EMS), PCB-Manufacturers and Dealers, ...
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... leads to the question as to which surface protection is the right one. This is partly due to the changing technical demands on PCBs | MULTILAYER CIRCUIT BOARD | in further processing. Also, as of 1. 6. 2006, EU-Regulations restricting the use of dangerous materials in electronic appliances are to include the prohibition of | MULTILAYER CIRCUIT BOARD | materials containing lead, and is, therefore, another reason why alternative surfaces have been developed. One of these is immersion tin. PROCEDURE A layer of tin | MULTILAYER CIRCUIT BOARD | is applied to the PCB by means of a special process, in which the copper atoms of the exposed conductors and contact areas are exchanged | MULTILAYER CIRCUIT BOARD | for tin atoms by adding thiourea. The chemical reaction ends when the copper surface is 0,6 to 1,2 my. Between the tin and copper layers | MULTILAYER CIRCUIT BOARD | 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 tin chemically. | MULTILAYER CIRCUIT BOARD | One advantage is the uniform smoothness of the surface. This feature enables the application of fine ...
[ Multilayer Circuit Board ]