Will the PCB assembly board be harmful to the human body?

Will the PCB assembly board be harmful to the human body? Many friends who have visited the workshop will ask such questions. Today I am going to give you the answer! It is harmful to work for a long time in the PCB board environment. PCB assembly contamination refers to any surface deposits, impurities, slag inclusions and adsorbents that reduce the chemical, physical or electrical properties of PCBA to unqualified levels.

Hazards of PCBA contamination, which may directly or indirectly lead to the PCB assembly potential risks , for example:

1. The organic acid in the residue will corrode the PCBA;

2. During the power-on process, the ions in the residue cause electromigration due to the potential difference between the solder joints, resulting in a short-circuit failure of the    product;

3. Residues affect the coating effect;

4. After time and environmental temperature changes, cracking and warping of the coating will cause problems with the reliability of the product.

PCB assembly contamination refers to any surface impurities, deposits, adsorbents and slag inclusions that reduce the chemical, physical or electrical properties of PCBA to unqualified levels. In order to improve the reliability and quality of electronic products, it is necessary to strictly control the existence of residues during PCB assembly processing, and these pollutants must be completely removed if necessary.

The pollution of PCB assembly mainly includes the following aspects:

1. PCB assembly surface pollution will be caused by pollution or oxidation of PCB assembly components and PCB circuit boards;

2. Manual soldering will be produced fingerprints, and wave soldering will be produced some Wave soldering trace and Welding tray (fixture) trace. There may be other types of contaminants on the PCB assembly surface in varying degrees, such as plugging glue, high temperature tape residue glue, fingerprints and dust;

3. In the manufacturing PCB assembly process, it is necessary to use solder paste, welding wire for welding. Flux will produce residues during the soldering process, contaminating the surface of the PCB assembly board, and is the main pollutant;

4. Electrostatic pollution caused by dust, water and solvent smoke, steam, particulate organic matter and charged particles attached to PCB assembly in the workplace.

We have confidence in providing you the best combination of turn-key PCB assembly service, quality, price and delivery time in your Small batch volume PCB assembly order and Mid batch Volume PCB assembly order.

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