Flexible printed circuit board (FlexiblePrintedCircuit referred to as FPC) is a flexible printed circuit board with high reliability and excellent performance made of polyimide or polyester film. It has high wiring density, light weight, thick Thin and flexible.
1. Short: short assembly hours
All lines are configured, saving the connection work of redundant cables;
2. Small: smaller than PCB circuit board
It can effectively reduce the volume of the product and increase the convenience of carrying;
3. Light: lighter than PCB circuit board (hard board)
Can reduce the weight of the final product;
4. Thin: thinner than PCB circuit board
It can improve the softness and strengthen the assembly of three-dimensional space in a limited space.
FPC flexible circuit board is a printed circuit made of flexible insulating substrates, which has many advantages that rigid printed circuit boards do not have:
(1) It can be bent, wound, and folded freely, and can be arranged arbitrarily according to the requirements of space layout; and can be moved and stretched arbitrarily in three-dimensional space, so as to achieve the integration of electronic component assembly and wire connection;
(2) The use of FPC flexible circuit boards can greatly reduce the size and weight of electronic products, and is suitable for the development of electronic products in the direction of high density, miniaturization, and high reliability. Therefore, FPC has been widely used in aerospace, military, mobile communications, laptop computers, computer peripherals, PDA, digital cameras and other fields or products;
(3) FPC also has the advantages of good heat dissipation and solderability, easy assembly and low overall cost, etc. The design of FPC's combination of soft and hard also makes up for the slight lack of flexible substrates in component bearing capacity to a certain extent.
(1) One-time high initial cost: Since FPC flexible circuit boards are designed and manufactured for special applications, the initial circuit design, wiring and photographic plates require higher costs. Unless there is a special need to apply a flexible PCB circuit board, it is usually best not to use it in a small amount of applications;
(2) It is difficult to change and repair the flexible PCB: once the FPC flexible circuit board is made, it must be changed from the base map or the compiled light drawing program, so it is not easy to change. Its surface is covered with a layer of protective film, which must be removed before repairing and restored after repairing, which is a relatively difficult task;
(3) The size is limited; FPC flexible circuit boards are usually manufactured by batch process when they are not yet popular, so they cannot be made very long and wide due to the limitation of the size of production equipment;
(4) Improper operation is easy to damage : Improper operation of the installation and connection personnel may easily cause damage to the flexible circuit, and its soldering and rework need to be operated by trained personnel.
