Specification of this Flash Driver SD card PCB Assembly
Flash Driver SD card PCB Assembly,New development projects require more complex, larger PCBAs and tighter packaging. SD card PCB Assembly,manufacturer,supplier,Design,solution,price,These requirements challenge our ability to build and test these units. Furthermore, larger boards with smaller components and higher node counts will likely continue. For example, one design that is currently drawing a board diagram has approximately 116,000 nodes, more than 5100 components, Flash Driver PCB Assembly,and more than 37,800 solder joints that require testing or validation. This unit also has a BGA on the top and bottom, and the BGA is followed. One method of ICT is not possible using a conventional needle bed to test this size and complexity of the board.
Customized smt assembly,Increasing PCBA complexity and density is not a new issue in manufacturing processes, especially in testing. Realizing that increasing the number of test pins in the ICT test fixture is not the direction to go, electronic components procurement,we began to observe alternative circuit confirmation methods. Seeing the number of contacts per million probes, we found that at 5000 nodes, many of the errors found (less than 31) may be due to probe contact problems rather than actual manufacturing defects (Table 1). Therefore, we set out to reduce the number of test pins instead of rising. Despite this, the quality of our manufacturing process is still assessed throughout the PCBA. We decided to use a combination of traditional ICT and X-ray stratification as a viable solution.
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