source:Industry News release time:2022-08-23 Article author:yu Popular:pcb
1. What is FPC cable?
Speaking of FPC line, everyone has no doubt mastered or understood what FPC is? According to the function, FPC can be divided into many kinds, such as FPC wireless antenna, FPC touch display screen, FPC capacitive screen, etc. FPC line row is one of them. A set of electrode connecting wires bent inward horizontally.
Second, the composition and main parameters of the FPC line
Since the FPC line is a kind of FPC, its composition is the same as that of the FPC. The FPC is generally elongated, and the two sides are designed to be pluggable and fibrous, which can be immediately connected to the RF connector or welded to the commodity. The middle is generally the route. Since the FPC line must have a certain degree of flexibility, the plate is generally made of injection-molded copper, which is resistant to bumps and flexible.
Line row main parameters:
The minimum pattern boundary line spacing is 3mil/3mil;
The minimum crimping hole for finished products is 0.15mm.
3. FPC line row processing technology
The surface treatment used by the FPC line is generally immersion gold, and sometimes rust is removed. However, the rust removal process cannot be heat-resistant, and the natural environment resistance is worse than that of immersion gold. The price of the two is similar. Therefore, most of them use the immersion gold process. In addition, there are also processing techniques such as electroplating tin and spraying tin, but the high temperature resistance of FPC is generally below 280 degrees Celsius, while the temperature of tin spraying is about 300 degrees Celsius, and as the strength of the solder paste is small, it is also very rarely used.
4. The main purpose of FPC line row
The role of the FPC line depends on the connection of the two related parts or commodities. Nowadays, many products have adopted the wire row. Because of its flexibility, FPC wire row has long been used in many products such as copiers, mobile phones, and notebook computers. The key concentration is in the Pearl River Delta region, in which Shenzhen is the first.
Five, FPC line row advantages and disadvantages
Advantage:
The use of FPC can greatly reduce the volume and net weight of electronic equipment, which is necessary for the development trend of electronic equipment to high density, practicality and high reliability. Therefore, FPC has been widely used in aerospace engineering, national defense, mobile communication, notebook computer, computer peripheral equipment, PDA, digital camera and other industries or commodities. In addition, it can be distributed at will according to the space planning regulations, and can be moved and retracted freely in the three-dimensional space, thereby achieving the integration of electronic device assembly lines and transmission lines.
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