The price of FPC is influenced by various factors, including material costs, production processes, order quantities, etc. Generally speaking, the price of FPC is higher than that of PCB. The specific price may vary depending on the supplier, specifications, and order quantity. Taking the common single-layer FPC as an example, the price may range from several hundred to several thousand yuan per square meter. The price of double-layer or multi-layer FPC will be higher. It is recommended to directly contact the FPC manufacturer or supplier to obtain an accurate quotation.

FPC process flow and principle

technological process:

1. Design and drafting: Based on customer requirements, design circuit diagrams and generate Gerber files.

2. Substrate preparation: Choose a suitable flexible substrate, such as PI or PET.

3. Coating photosensitive film: Apply a layer of photosensitive film on the substrate for subsequent exposure and development processes.

4. Exposure and development: Using ultraviolet exposure, transfer the circuit pattern onto a photosensitive film through a mask, and then perform development processing.

5. Etching: By chemical etching, the uncovered part of the photosensitive film is etched away to form a circuit pattern.

6. Coating: Coating the surface of a circuit with a layer of metal (such as copper) to improve conductivity and corrosion resistance.

7. Compression: Press multiple layers of FPC together to form a multi-layer circuit board.

8. Cutting and testing: Cut to the final size as required and conduct electrical performance testing.

Principle:

The manufacturing principle of FPC is similar to PCB, but it needs to consider the characteristics of flexible substrates. The key is how to ensure the flexibility of the substrate while maintaining circuit performance. Exposure development technology and etching technology are the core, and by precisely controlling the exposure time and etching solution concentration, fine circuit patterns can be formed. The plating process improves the conductivity and durability of the circuit. The entire process requires strict quality control to ensure the reliability and consistency of the product.