Why are PCB preservation instructions so important?

In daily life, we usually go to shopping malls or large supermarkets to shop. We will see that most products have a shelf life. The shelf life of these products is provided by the manufacturer and marked on the products for limited time. During the warranty period, the manufacturer of the product is directly responsible for the quality of the product in accordance with the relevant standards or the quality conditions of the express guarantee. The seller can sell these products with confidence and consumers can use it safely. Well, as a small editor who has been focusing on the PCB industry for many years, I want to talk to you about the key points of PCB preservation. The circuit board is no better than the other products we buy. It has strict requirements for contact with air and water. First, the PCB board cannot be damaged by vacuum. When packaging, a bubble film must be covered around the box, because the water absorption of the bubble film is relatively high. Well, this has a good effect on moisture-proof, and some moisture-proof beads can also be placed to achieve the purpose of moisture-proof to a certain extent. All products after sealing should be stored off the ground in a dry and ventilated place and away from direct sunlight. Secondly, the temperature and humidity of the warehouse of the factory should also be controlled within the specified standard range. The specific storage time of the PCB circuit board is not only related to the production capacity and production process of the PCB manufacturer, but also has a great relationship with the region in which it is located. For PCB storage time, baking time and temperature, specific issues need to be analyzed in detail, and specific decisions need to be made on the basis of PCB management and control specifications, according to the production capacity, process, region and season of different PCB circuit board manufacturers. For PCB boards that are not used for a long time, the circuit board manufacturer is best to apply a layer of three-proof paint on it. The role of the three-proof paint can prevent moisture, dust, and oxidation. In this way, the PCB storage life will be increased to 9 months. For example, PCBs made by OSP anti-oxidation process and pure immersion gold process generally have a shelf life of 6 months after packaging, and it is generally not recommended to bake for OSP process. In fact, the storage time of PCB circuit boards is related to the surface treatment. Immersion gold and electroplating gold are the longest. They can be stored for two to three years under constant temperature and humidity conditions. Doing a good job of PCB circuit board storage can better extend the service life of the circuit board, which is a problem that cannot be ignored. PCB has always insisted on using superb technical force, sophisticated production equipment, perfect testing methods, product quality higher than industry standards, and warm and thoughtful service, which has won praise and welcome from global merchants and users.