Introduction to FPC connector of battery FPC soft circuit board!

The battery fpc flexible printed circuit connector on the market is abbreviated as FPC connector. They are characterized by high cable density, portability and thinness, so they are called soft circuit boards, soft printed circuit boards or flexible circuit boards. Most FPC connectors are made of polyimide (PI) or polyester film (PET), which improves the reliability of FPC connectors. In this article, Xinpengbo mainly explains the introduction of FPC connector of soft circuit board!



In fact, FPC connectors may vary according to different ways of connecting raw materials and copper cladding. Therefore, FPC can be divided into two main types: three-layer FCCL and two-layer FCCL. Each of the two models has its advantages and disadvantages.



The two-layer FCCL has greater flexibility. The cost of using the raw material two-layer FCCL widely in the market is too high. In contrast, the three-layer FCCL is much cheaper and usually used in the market. However, the flexibility and flatness parameters of the cushion are not as good as those of 2-layer FCCL, so there may be welding defects such as cracks, which should be avoided by the manufacturer as much as possible.



As three-layer FCCL is more common in the market, more and more connector manufacturers adopt it and develop it better. Two layers of FCCL can be classified according to the number of layers of copper foil, including multilayer board, double-sided board, single-layer board and double-layer board.



Single-layer board has the simplest structure. Connector manufacturers usually use structures including raw materials, transparent plastic and copper foil. The structure adopted by some FPC connector manufacturers includes a layer of protective plastic and transparent plastic. This structure can greatly improve the mechanical strength of the three-layer FCCL.



The double-layer structure is used for complex circuits that cannot be wired or shielded. Unlike the single-layer board in VIA structure, the multilayer board can effectively connect different layers of copper foil. The double panel is welded on both sides and is mainly used to connect other circuit boards. In addition, FPC connectors can be applied to MP3 and MP4 players, digital cameras, mobile phones and mobile phone batteries. FPC connectors have a very good future.