PCBA Tech - How important is ESD protection during PCBA processing?

How important is ESD protection during PCBA processing?

There are many precision electronic components on the PCBA board, and many components are sensitive to voltage. Shocks higher than the rated voltage will damage these components. However, PCBA boards damaged by static electricity are difficult to investigate step by step during functional testing. What's more deadly is that some PCBA boards function normally during testing, but when the finished product is used in the hands of customers, occasional defects appear, which brings great after-sales dangers and affects the company's brand and goodwill. Therefore, in the PCBA processing process, we must attach great importance to ESD protection.

PCBA processing methods to strictly control ESD electrostatic protection are roughly as follows:

Ensure that the temperature and humidity of the workshop are within the standard range, 22-28 degrees Celsius, and humidity 40%-70%

All employees must discharge static electricity when entering and leaving the workshop

Dress as required, wear static caps, static clothes, and static shoes

All workstations that need to touch the PCBA board must wear a rope static ring, and connect the rope static ring to the static alarm

The static wire is separated from the equipment ground to prevent leakage of the equipment and damage to the PCBA board

All turnover carts, racks, racks, etc. must be connected to the electrostatic ground wire

Conduct ESD static inspection in strict accordance with ISO quality management requirements

Static electricity is invisible and intangible in the production process, and it is often inadvertently causing fatal hidden dangers to PCBA circuit boards. The cost of PCBA troubleshooting is very high. Therefore, each factory manager must strictly pay attention to ESD static management, so that the PCBA processing process can get complete quality control.

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