Why do module half hole PCB boards require vacuum packaging bags? Although this issue is small, it is indeed a problem that many circuit board manufacturers attach great importance to. Due to the lack of good sealing performance of the module half hole PCB board, its surface gold deposition, tin spraying, and welding layer positions will be oxidized by air, which poses a threat to welding and is not conducive to production and manufacturing.

　　So, how do you store the module half hole PCB board? A circuit board is not like any other product, it cannot touch gas or water. The module half hole PCB vacuum pump cannot be damaged. When loading, a layer of bubble pad should be placed next to the small box. The bubble pad has good water absorption ability, which has a very good effect on waterproofing. Naturally, waterproof beads are also indispensable. Then classify and label the pollutants. After packing, the small box must be separated from the wall, stored off the ground in a dry and cool place, and also protected from sunlight. Half hole PCB boards with metal surface treatments such as sinking gold, electroplating, tin spraying, and gold plating can generally be stored for 6 months, while half hole PCB boards with metal surface treatments such as sinking silver, tin, and OSP can generally be stored for 3 months.

　　For module half hole PCB boards that have not been used for a long time, circuit board manufacturers apply a layer of three proof paint on their upper edges. The effectiveness of the three proof paint can be waterproof and anti fouling. That way, the storage life of the module's half hole PCB board will be extended to 9 months.