Electronic components PCB circuit board storage method

PCB circuit board is an electrical connection provider of electronic components. It has an important role. After the PCB circuit board is finished, it needs to be stored to avoid damage to PCB circuit board. And domestic PCB production capacity expansion speed, and mostly export, so the competition is fierce, not only the competition between domestic GeChang, more want to two of the United States and Japan and the former PCB factory competition, PCB manufacturers in addition to the technical level and quality of the product itself by the customer affirmation, the quality of the packaging more customer satisfaction can only need to do. The electronic factory, which is almost a small scale, will now require the packing of the shipment of PCB manufacturers. The following items must be paid attention to. Some of them even give the packing specification directly.

1. Must vacuum packing

2. The number of plates is too small for each stack

3. Specifications for the tightness of each overlapping PE film and the rules for margin width

4. Specifications of PE film and Air Bubble Sheet

5. The number of carton pounds and other specifications

6. There is a special provision for buffer before the inside of the carton box

7. Post-box tolerance specification

Weight limit per box

So what is the storage method for PCB? Here's the technician:

1. Label the PCB circuit board according to the classification. The box must be kept in a dry and ventilated place after sealing the box, and avoid sunlight.

2. The PCB circuit boards need to be surrounded by a bubble film at the edge of the box, which can absorb water and prevent moisture absorption. There is no less moisture proof.

3. PCB circuit board needs to be vacuum packed with colorless gas bead plastic bag, and the vacuum packing bag should be accompanied with desiccant and ensure that the packing is tight. Can not contact with air and water, avoid the surface of PCB circuit board of the surface of gold, spray tin and the welding disk area to be oxidized to influence welding, is not good for production.

4, PCB circuit board storage warehouse temperature control at 23 + / - 3 ℃, the best 55 + / - 10% RH, such conditions, heavy gold, gold, tin, silver, and other general surface treatment of PCB circuit boards can be stored for six months, setting silver, tin, OSP surface treatment such as PCB commonly can be stored for 3 months.

5. For long time unused PCB circuit board, it is best to brush with a layer of three anti-paint, the effect of three anti-paint can be moisture-proof, dustproof, anti-oxidation. This will increase the storage life of PCB circuit to 9 months.

The method of storage of PCB circuit board is introduced here today. In fact, the PCB circuit board can be stored for as long as the surface treatment, and the gold and electroplating are the longest preserved. In the condition of constant temperature and humidity, it can be preserved for two or three years. It is not a problem to be able to extend the life of the circuit board for better use of PCB circuit board storage.