Introduction to FPC circuit board

Flexible circuit board is a highly reliable and excellent flexible printed circuit board made of polyimide or polyester film. Referred to as soft board or FPC, it is characterized by high wiring density, light weight and thin thICkness.

It is mainly used in mobile phones, laptops, PDAs, digital CAMeras, LCMs and many other products.

FPC circuit board

FPC circuit board

Characteristics of FPC Circuit Board

1. Short: short assembly time

All lines are configured to eliminate the connection of redundant cables

2. SMAll: smaller than PCB

It can effectively reduce the product volume and increase the convenience of carrying

3. Light: lighter than PCB (hard board)

Can reduce the weight of the final product

4 Thin: thinner than  PCB

It can improve the flexibility and strengthen the assembly of three-dimensional space in a limited space

Application of FPC Circuit Board

Mobile phone

Focus on the light weight and thin thickness of the flexible circuit board, which can effectively save the volume of the product, and easily connect the battery, microphone and buttons

Computer and LCD screen

The integrated circuit configuration of the flexible circuit board and the thin thickness are used to convert the digital signal into a picture, which is displayed on the LCD screen

CD Walkman

Focus on the three-dimensional assembly characteristics and thin thickness of flexible circuit boards Turn the huge CD into a good companion

Disk drive

Both hard disks and floppy disks rely heavily on the high softness of FPC and the ultra-thin thickness of 0.1mm to complete fast data reading Whether PC or NOTEBOOK

Latest use

Elements of mounting circuit (Su printed ensi. n cireuit) of hard disk drive (HDD) and xe packaging board

The wireless charging coil array concentrates the electromagnetic field in a certain area to reduce the space transmission consumption, thus improving the power conversion efficiency. application

Advantages and disadvantages of FPC circuit board

Advantages of multilayer circuit board: high assembly density, small size and light weight, because high-density assembly and fewer connections between components (including parts) increase reliability; It can increase the wiring layer, and then increase the design flexibility; It can also form the impedance of the circuit, form a high-speed transmission circuit with a certain degree, set the circuit and electromagnetic shielding layer, and install metal core layers to meet the special thermal insulation and other functions and needs; Easy installation and high reliability.

Disadvantages of multilayer PCB board (unqualified): high cost, long cycle; High reliability inspection method is required. Multilayer printed circuit is the product of electronic technology, multi-function, high speed, small volume and large capacity. With the development of electronic technology, especially the wide application of large-scale and ultra large scale integrated circuits, fine lines appear in multilayer printed circuits with high density, high speed, high precision and high number of changes.