How to Eliminate Short Circuits from PCBA Production?

We need to check all the PCB‘s functions after it is designed. We should perform a simple evaluation, and check all the problems again.

The complying with Excellent quality PCB, PCBA handling producer will discuss how to avoid short circuits in PCB processing.

1. Open up the PCB drawing in the computer, brighten up the short-circuited networks, and check where the easiest and closest connection is. Attention should be paid to the short-circuit inside the IC. If you are using hand-operated welds, make sure that the best practices are followed.

2. Visually evaluate the PCB before welding and use a multimeter for inspection.

3. Before welding a chip, you must use a multimeter in order to check if the ground and power supply are short-circuited.

4. Do not rotate the blowpipe randomly when soldering PCBAs. It is difficult to detect a short circuit if you accidentally solder the pins of the chip. This is especially true for surface-mount parts.

Use a board to reduce a line (especially for boards with single/double layers). After reducing line, turn on each block individually and remove them gradually.

5. Use a tool for short circuit analysis and positioning.

6. BGA chips are used in PCBA spot processing. BGA chips are used in PCBA patch processing. It is recommended to separate the power supply for each chip across the board style, as all solder joints will be covered by the chip.

When the ground and power supply are short-circuited by doing this, it is very easy to identify a specific chip. Hand-on BGA welding is difficult and can lead to short-circuiting of adjacent power and grounds solder balls.

7. Take care when welding surface-placed capacitors of small size, especially power filter capacitors (103 or 104). They are many and can cause a short between the power supplyand the ground.