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During transportation, the packaging of printed circuit board assemblies (PCBAs) may be subject to crushing, vibration, shaking, dropping, and other forms of physical damage. These damages are not always obvious but can be fatal. If the PCBA is prepared for installation before transportation, its packaging is particularly susceptible to static damage or moisture penetration. After investing a lot of effort in designing the PCB and turning it into a physical product, the last thing you want is damage during transportation.
When we are at the shipping end of logistics, it is always frustrating to learn that customers receive damaged goods. Highqualitypcb Company is always looking to improve its services, including packaging, to ensure that the state of the PCB is consistent with the customer's expectations when it leaves the production line. Therefore, it is crucial to complete some basic PCB packaging requirements before the manufacturer manufactures any products to ensure that the circuit board is fully protected during transportation.
Regarding anti-static packaging, electrostatic discharge (ESD) refers to the rapid transfer of charge when objects with different electrical potentials come into contact. Static electricity is one of the main causes of the failure of electronic components. Although some components may be strong enough to withstand static damage, parts such as integrated circuits and semiconductors can be permanently damaged by tiny current fluctuations. As the size of integrated circuits continues to shrink, the vulnerability of devices to ESD increases.
Examples of components that are sensitive to static electricity include MOSFETs, as they have very high impedance, which makes it more difficult to dissipate the charge. Even if the component does not fail immediately, static electricity may gradually impair the functionality of the device. Therefore, if you have compositions exceedingly sensitive to ESD, you can rest assured that the packaging will not cause any damage to them.
One of the basic ways to prevent static electricity during transportation is to use anti-static bubble wrap. In addition to acting as a cushion for all shocks during transportation, it does not generate static charge like regular bubble wrap and helps dissipate static electricity. Anti-static bubble wrap can be recognized by its unique pink color due to the anti-static coating used.
Antistatic bubble wrap is a typical choice for storing PCBAs during transportation.
Antistatic bags, or pink Poly bags, are designed for storing electronic components that are susceptible to static damage and function similarly to antistatic bubble wrap. These bags are made of polyethylene material that prevents static electricity and may contain bubble wrap material to provide additional cushioning protection against physical impact. Pink foam is also widely used for this purpose.
Another more advanced form of static protection is to use conductive antistatic bags.They differ from ordinary or dissipative antistatic bags in that conductive antistatic bags have a shiny metal layer and are usually equipped with a Ziploc-like sealing mechanism. Due to their excellent static shielding ability, these bags are particularly suitable for long-term storage, transportation, and handling, and are also called shielding bags. They effectively protect the contents from external charges and are essential for preserving exposed components susceptible to static electricity, such as MOSFETs.
In terms of moisture-proof packaging, one of the main causes of PCB degradation in outdoor applications is moisture. Even if the circuit board is enclosed in a suitable waterproof enclosure in the field, it may still be exposed to moisture during transportation. Bare PCBs can also be adversely affected by humidity. Therefore, if the PCBs need to be shipped by sea or through humid climates, special attention should be paid to the moisture-proof performance of the packaging during long journeys.
It is recommended that the PCBs be in a sealed moisture-proof bag with a small packet of desiccant. Desiccant is usually packed in a porous bag so that moisture can pass through the bag and be absorbed by the desiccant. Its purpose is to absorb moisture from the residual air in the sealed bag and absorb moisture that penetrates the bag. Even when fully saturated, the desiccant can remain dry.
For moisture-sensitive boards, vacuum-sealed packaging can be used to extract moisture from the package along with the air. For added protection, vacuum-sealed ESD packages can also incorporate antistatic properties.
Given the severe jolts that may occur during transportation, printed circuit boards (PCBs) are at high risk of being damaged by shock or bending if not properly shockproofed. To avoid this, sufficient padding material must limit movement within the package and ensure adequate protection for vulnerable areas, such as exposed pins.
Highqualitypcb SMT Processing: Proper printed circuit board (PCB) packaging is essential to protect your hard work and help increase the life of the equipment in the field. Currently, when your circuit boards are shipped by mail, you can verify that they are adequately protected and ensure that they have not been damaged during transportation. This is exactly what we currently provide. Please share your insights in the comments section below!