PCB News - Explain the knowledge of flexible pcb processing technology

Explain the knowledge of flexible PCB processing technology

Flexible PCB, also called flexible circuit board, has the characteristics of foldability, bending, light weight, small size, and good heat dissipation. However, flexible PCB has a slight lack of component carrying capacity. Fortunately, this is obtained in the design of soft and hard structures. make up. The use of flexible PCBs reduces the volume of electronic products to a large extent, and meets the needs of electronic products to develop in the direction of high density, miniaturization and high reliability. The purpose of flexible PCB is not explained here. Today, I will mainly introduce some knowledge points of flexible PCB processing technology.

Flexible PCB can be divided into single-sided fpc, double-sided fpc and multi-layer fpc according to the number of circuit layers. The fpc processing technology of different layers is also different. The following is an example of single-sided fpc and double-sided fpc:

Single-sided flexible fpc processing process:

Cutting - Drilling - Pasting Dry Film - Aligning - Exposure - Developing - Etching - Stripping - Surface Treatment - Covering Film - Pressing - Curing - Surface Treatment - Immersion Nickel Gold - Printing Characters - Cutting - Electrical Measurement - Punching Cutting - final inspection - packaging - shipment
Flexible PCB processing technology

Double-sided flexible FPC processing process:

Cutting - Drilling - PTH - Electroplating - Pre-processing - Dry Film Pasting - Alignment - Exposure - Development - Graphic Plating - Stripping - Pre-processing - Dry Film Application - Alignment Exposure - Development - Etching - Stripping - Surface Treatment - Paste the cover film - Pressing - Curing - Immersion of nickel gold - Printing characters - Shearing - Electrical test - Punching - Final inspection - Packaging - Shipment
Flexible PCB processing technology In order to ensure and improve the effect and quality of flexible fpc, during processing and production, it must be operated in accordance with strict technical procedures, and operations in cutting and drilling must also be handled in accordance with specifications. The most effective way to ensure the quality of flexible fpc is a strict quality screening system, and excellent R&D and design capabilities are the guarantee of production capacity and reliable quality.

The above is an introduction to the related knowledge of flexible PCB processing technology, I hope it will be helpful to you!