In the manufacturing of electronic products, the printed circuit board (PCB) plays a vital role, and its surface finish has a direct impact on the performance, durability, and cost of the final product. PCB surface finishes are used to enhance solderability, prevent oxidation, and ensure stable electrical connections. As technology
The factors that cause the welding defects of flexible circuit boards have the following three reasons：
The solderability of the flexible circuit board holes affects the soldering quality
The poor solderability of the holes of the flexible circuit board will cause virtual welding defects, which will affect the parameters of the components
Flexible PCB is a kind of soft printed board material which appeared in 1970s. The base material is made of polyimide or polyester film. Flexible PCB is good reliable and excellent flexible,and its output is close to the output of rigid pcb.FPC widely used in portable communication equipment, computers, printers
Flexible circuits are used in various applications where conductors are connected to each other,these conductor interconnections must be bendable or be able to remain bent for long periods of use. In the past, this interconnect technology was implemented using wire interconnections.
There are many kinds of flexible circuits:
One is a two-way
With the continuous development of science and technology, PCB laser drilling is more and more widely used.Here, let the flexible circuit board manufacturers introduce the following 2 intuitive phenomena: what is PCB laser drilling and the matters needing attention.
How does laser produce?
Laser is a gas mixture gas in a closed circular space (see below table)
The production process of a flexible printed circuit board is basically similar rigid PCB.For some operations, the flexibility of the laminates requires different devices and completely different processing methods.Most flexible PCB uses a negative method.However, there are some difficulties in the machining of flexible laminated plates and in the process of coaxial
Flex PCB is Flexible Printed Circuit Board, abbreviated FPC, also known as flexible circuit board, or flexible board.According to the definition of IPC, flexible printed circuit board is a printed circuit designed and manufactured on flexible substrate.
Flexible circuit board is one of the important varieties of PCB.
FPC board is generally range
Flex Printed Circuit(FPC) Plating
It may have adhesive or ink pollution on exposed copper conductor surface after FPC coating process when FPC plating pre-processing. There will be oxidation,discoloration due to high temperature process.we must remove the contamination and oxide layer of conductor surface in order to obtain a good adhesion of close
Flexible printed circuit boards are more classification methods.According to FPC layer can be divided into: single-sided,double-sided,multilayer and Rigid-Flex PCB. Flexible printed circuit boards(FPCs) market share continues to rise as electronic products tend to miniaturization and lightness. But Flexible printed circuit boards(FPCs) frequently occur breaking, short circuit,line width incorrect defects in
