First, what is FPC wiring
FPC soft circuit boards: Speaking of FPC line arrangement, there is no doubt that everyone has mastered or understood what FPC is? FPC can be divided into many kinds of functions, such as FPC wireless antenna, FPC touch screen, FPC capacitive screen, ETC. FPC line row is one of them. Popularization point says that FPC line row is the electrode connection line group that can be bent in a certain level.
Two, the role of FPC line row main purpose
The role of the FPC wire row depends on the connection of two related parts or goods. Today, many goods have used the line row, because it has a certain flexibility, in the copier, mobile phone, notebook computer and many other goods have already chosen FPC line row. The key concentration of FPC line manufacturers is in the Pearl River Delta region, in which Shenzhen is the first.
Composition and main parameters of FPC line arrangement
As FPC is a kind of FPC, its composition is the same as that of FPC. The FPC is typically long, with two sides designed to be pluggable fibers that can be immediately attached to rf connectors or welded to goods. The middle is generally the route, because the FPC line must be a certain degree of flexibility, therefore, the plate is generally made of injection copper, rough resistance, flexibility.
Main parameters of line arrangement:
Minimum graphic boundary line spacing is 3mil/3mil;
At least 0.15mm for finished products.
FPC line processing technology
FPC line using surface processing technology is generally gold, sometimes rust. But the rust processing process can not be heat resistant, the natural environment is worse than the gold, the two prices are similar, therefore, the vast majority of the selection of gold processing technology. In addition, there are also electroplating tin spraying tin processing technology, but THE FPC high temperature resistance is generally in the following 280 degrees Celsius, and tin spraying time has about 300 degrees Celsius temperature, and with the solder paste strength is small, so it is also very little selection.
FPC line layout advantages and disadvantages
Advantage:
The use of FPC can greatly reduce the volume and net weight of electronic equipment, the use of electronic equipment to high density, practical, high spectrum direction of development must be. Therefore, FPC has been widely used in aerospace engineering, national defense, mobile communications, notebook computers, computer peripheral devices, PDA, digital cameras and other industries or commodities. In addition, it can be randomly allocated according to spatial planning regulations, and can be arbitrarily moved and telescoped in three-dimensional space, thus achieving the integration of electronic device assembly line and transmission line connection.
Defect:
In the whole process of producing goods, cost should be the most difficult problem to consider. Because the flexible FPC is designed and manufactured for unique applications, the initial cost of circuit principles, wiring and photographing the base plate is high. Otherwise there must be a unique use of flexible FPC, general small use, it is best not to choose. In addition, even though it has already invested a lot of money into the vitality to do, the late maintenance of course is indispensable, so tin welding and repair must be trained staff practical operation.
Storage of FPC cable bar
Unlike other products, FPC soft circuit boards are actually not allowed to touch gas and water. So how should people store such goods properly? I believe that after reading the following points, people will look for reference answers.
The first FPC soft circuit board vacuum pump can not be destroyed, loading must be surrounded by a layer of bubble pad next to the small box, the water absorption capacity of the bubble pad is better, so that the waterproof has a very good effect, perhaps, waterproof beads can not be less.
Second, the small box after the silk section must be separated from the wall and stored in a dry and cool place, but also to avoid sunlight exposure. The temperature of the warehouse is best operated at 23±3℃, 55±10%RH, under that standard, the PCB board with metal surface treatment such as gold, electric gold, tin spraying, nickel/silver plating can be stored for 6 months, the PCB board with metal surface treatment such as silver, tin, OSP can be stored for 3 months.
