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This article is mainly about the introduction of FPC flexible circuit board packaging skills and precautions
FPC flexible circuit board packaging skills and precautions:
Special attention should also be paid to the packaging of the finished flexible circuit board. It is not a matter of arbitrarily and simply stacking an appropriate number of flexible boards together. Due to the complex structure of the flexible printed board, it is easy to be damaged by a slight external force, so the packaging of the flexible printed board must be extra careful.
The commonly used packaging method is to stack 10-20 pieces of flexible circuit board FPC together, and use paper tape to roll each part and fix it on the cardboard. Avoid using tape, because the chemical substance contained in the tape adhesive should leak out. It is easy to cause oxidation and discoloration of the terminal. When the base film is a polyimide film, because it is easy to absorb moisture, the flexible printed board FPC should be put into a polyethylene bag together with a desiccant such as silica gel and sealed at the mouth of the bag. Then put it and cushioning materials into a corrugated box. Due to the unique shape of the flexible printed circuit board FPC, different packaging methods should be adopted according to different shapes.
Multi-layer PCB boards are pressed into a circuit board after multiple layers are completed, and in order to reduce costs and via interference, multi-layer PCB boards are often not much thicker than double-layer boards and single-layer boards. This makes the layers that make up the multi-layer PCB board have a smaller thickness and lower mechanical strength than ordinary double-layer boards and single-layer boards, resulting in higher processing requirements. Therefore, the production cost of multi-layer PCB boards is much more expensive than ordinary double-layer boards and single-layer boards.
Some flexible circuit boards FPC are first pasted on a polyester support sheet coated with a weak adhesive before punching the shape, and then half-cut shape processing (embedded punching) is performed with a die, and it is left intact. For the user, the user can take the flexible circuit board FPC off and assemble it, or assemble it first, and then take it off from the polyester carrier film after the assembly is complete. This method can only be used for small-size products, which can greatly improve process efficiency both for flexible circuit board FPC manufacturers and users.
The safest and most reliable method is to use special trays. First of all, pallets should be equipped according to the variety. Although the management is troublesome, the quality is guaranteed and the use is convenient, which is beneficial to the user's assembly. The cost is not high and can be discarded after use.
The above is about FPC flexible circuit board packaging techniques and matters needing attention. FPC manufacturers should master their professional knowledge, improve the packaging quality of FPC flexible circuit board packaging and ensure the reasonable packaging of FPC, which guarantees the company's image.
