... have ask for to help you finding a suitable answer. Please click a topic below to view frequently asked questions in that topic. Error | MULTILAYER CIRCUIT BOARDS INDUSTRY | Highlights > Do you have a list with tips, in order to avoid errors in the apron? | DIN EN ISO 9001:2000 > ARE YOU | MULTILAYER CIRCUIT BOARDS INDUSTRY | CERTIFIED? | | HOTSHOT > DO YOU OFFER SUCH A SERVICE? | Methods of Shipment > Which modes of shipment do you offer? Standard lead | MULTILAYER CIRCUIT BOARDS INDUSTRY | times > Surcharge? UL-Approval > What and for which is that? Delivery in Panelized Boards (PB) > What is to be considered? Design Rule Check | MULTILAYER CIRCUIT BOARDS INDUSTRY | (DRC) > What is that? MAA's Basic Jet Line> What are MAA's and how can i calculate this? Multi-Panel (MP) > What is that and | MULTILAYER CIRCUIT BOARDS INDUSTRY | which one must consider? Surface (2) > RoHS-Compliance (leadfree)? Test Points > How can i calculate the test points? Working Days > What is your | MULTILAYER CIRCUIT BOARDS INDUSTRY | definition of a working day? You may also be interested in... Password > Which syntax is permitted? Value Added Tax (VAT) > When will it | MULTILAYER CIRCUIT BOARDS INDUSTRY | be charged? On-line Ordering > What means status of 1,2 etc.? If ...
[ Multilayer Circuit Boards Industry ]... in the horizontal mode using specially designed horizontal processing equipment or in the vertical mode using a standard immersion type plating line. When choosing | MULTILAYER CIRCUIT BOARDS INDUSTRY | a processing method, the following guidelines should be taken into consideration. Horizontal processing is recommended under the circumstances noted below. 1. Aspect ratios greater than | MULTILAYER CIRCUIT BOARDS INDUSTRY | 5:1 2. Plated through-hole diameters smaller than 0.016 in (0.4 mm) 3. Blind vias 4. Thin, flexible materials If high aspect ratio and small holes | MULTILAYER CIRCUIT BOARDS INDUSTRY | are processed in the vertical mode, vibration is recommended for each processing stage. The DMS-E process includes no cleaning sequence, therefore copper surfaces should be | MULTILAYER CIRCUIT BOARDS INDUSTRY | clean and holes should be free of all drill debris. This may be achieved by chemical cleaning (e.g. ultrasonics) or by brushing with an ultrasonic | MULTILAYER CIRCUIT BOARDS INDUSTRY | section to remove the drill debris prior to the DMS-E process. When processing double-sided panels through a horizontal line using sulfuric acid (e.g. Stabilizer) it | MULTILAYER CIRCUIT BOARDS INDUSTRY | is ...
[ Multilayer Circuit Boards Industry ]... nearer the deadline draws to the compulsory implementation of lead-free regulations (ROHS), the greater the attempts to achieve lead-free solutions that are comparable to | MULTILAYER CIRCUIT BOARDS INDUSTRY | the “all-purpose answer” SnPb in terms of technology and cost. Two systems are particularly predominant: tin/silver/copper (SnAgCu) and, more recently, stabilised tin/copper (SnCuNi). Although the | MULTILAYER CIRCUIT BOARDS INDUSTRY | level of efficiency of both systems is not yet completely clear, the following presents the latest information: SnAgCu There is more experience in the field | MULTILAYER CIRCUIT BOARDS INDUSTRY | of silver systems. Here, differentiation is made between the Sn-3.5Ag-0.7Cu, Sn-4Ag-0.5Cu and Sn-3Ag- 0.5Cu systems which vary in use from continent to continent. However, the | MULTILAYER CIRCUIT BOARDS INDUSTRY | agreed expert opinion (IPC/Soldertech-Conference Brussels 2003) is that the technological differences between the three systems are negligible. Sn-3.5Ag- 0.7Cu is the most common alloy in | MULTILAYER CIRCUIT BOARDS INDUSTRY | Europe. SnCuNi Although there are even fewer field results for the stabilised tin/copper system ...
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