How to solve short -circuit problems during SMT patch processing? If there is a short circuit in the SMT patch, this is a relatively common SMT patch processing. If the effect of hand -stickers and machine stickers is the same, it is necessary to solve the problem of short circuit, because short -circuited PCBA cannot be used. Check the short circuit of SMT patch? There are many methods. Let me introduce it below:

1. Use a short -circuit positioning analyzer for inspection.

2. In the SMT patch processing, if a large number of the same short circuit appears, the line operation can be performed, and the short -circuit parts are checked into each part separately.

3. The manual welding operation should develop a good habit. Use a multimeter to check whether there is a short circuit situation. Each time the handmade SMT patch is finished, you must use a multimeter to measure whether the power supply is short circuit.

4. Light the short -circuit network on the PCBA chart. Find a place that is more likely to occur on the line board, and pay attention to the short circuit inside the IC.

5. Small -sized SMT patch machining tables must be carefully welded when welding, especially the number of power filter capacitors, which can easily cause power and ground short circuit.

6. If there is a BGA chip, because all the solder joints are invisible by the chip, and it is a multi -layer board, it is best to divide the power of each chip when designing, and then use magnetic beads or 0 Euros or 0 Euro The resistance is connected. In this way, when the power supply and the ground are short circuit, the magnetic bead is cut off for detection, and it is easy to locate a chip.