PCBA board has many precision electronic components, many components are more sensitive to voltage. shocks above the rated voltage can damage these components. And the PCBA board damaged by static electricity is difficult to check step by step when carrying out function detection. Even more fatal is that some PCBA boards in the test function is normal, but when the finished product is used in the hands of customers, there is occasional bad, which brings great hidden trouble to the after-sale, and affects the brand and goodwill of the company. Therefore, PCBA process, we must attach great importance to ESD electrostatic protection.
The methods of strictly controlling ESD electrostatic protection in PCBA processing are as follows:
1. To ensure that the workshop temperature and humidity within the standard range of 22-28 degrees Celsius, humidity 40-70
2. All employees entering and leaving the workshop must release static electricity
3. Dress according to requirements, wear electrostatic cap, wear electrostatic clothing, electrostatic shoes
4. All stations that need to touch the PCBA board must wear a rope electrostatic ring to connect the rope electrostatic ring to the electrostatic alarm
5. Electrostatic wire and equipment ground wire separation to prevent equipment leakage, resulting in damage to the PCBA plate
6. All swing car electrostatic frame shelves must be connected to electrostatic ground wire
7. Strictly according to ISO quality management requirements ESD electrostatic spot check
Static electricity can not be seen in the production process, often inadvertently to the PCBA circuit board fatal hidden trouble, PCBA the cost of troubleshooting is very high. Therefore, every factory manager must pay strict attention to ESD electrostatic management, so that the PCBA processing process can be completely controlled.
