1. Flat cable, often referred to as a flexible circuit board (FPC), is utilized for data transmission in dynamic components and active regions, adhering to industry specifications such as wiring rules, line sequence, line color, and line number.

2. Data cables and interconnecting cables between devices are collectively known as flat cables. The flat cable is primarily categorized into two types: round connectors at both ends (designated as R-FFC, intended for direct soldering) and flat connectors at both ends (designated as FFC, meant for insertion into sockets).

3. It is particularly suited for data transmission between moving parts and motherboards, as well as between boards and within compact electronic devices. Given that the cost of FFC cable is more favorable compared to FPC (flexible printed circuit), its usage is expected to grow significantly.

4. In most applications where FPC is utilized, FFC can serve as an effective alternative. The cable boasts enhanced assembly reliability and quality, while also minimizing the hardware needed for internal connections.

1. Such as solder joints, relay lines, backplane lines, and cables commonly used in traditional electronic packaging, these cables offer enhanced assembly reliability and quality. The complexity of interconnected hardware across multiple systems often leads to a high misalignment rate during assembly.

2. Ping Wu, marketing manager of EECX Electronic Products Division, stated: “The flex cable exhibits low rigidity and compact size. Due to the small dimensions of flex board components, less material is required.”

3. With advancements in quality engineering, a very thin flexible system has been designed to be assembled in a single orientation, effectively minimizing the human errors typically associated with independent wiring projects.

4. The minimum line width and spacing are 3 mil/3 mil; the smallest finished wire hole can achieve a diameter of 0.15 mm.

5. Numerous reinforcement materials for FPC flexible circuit boards exist, such as FR4, PI, and steel sheet reinforcements, to maintain high temperature resistance during welding or bonding processes.

6. FPC cable bending tests are essential since FPC cables share the same composition as FPCs. Typically elongated, FPC cables feature pluggable pins at both ends for direct connector connections or product welding, with circuits located in the middle.

7. The base material is usually rolled copper, providing necessary flexibility and resistance to bending.

8. Reinforcement boards are distinctive to flexible printed boards, with various shapes and materials available. The general steps involved are illustrated in the following figure.

9. Adhesives are typically film-like, with both sides protected by a release film. An adhesive film with one side covered is applied to the reinforcement board, processed for shape and hole creation, and then laminated with the flexible printed board using hot roll lamination.

10. The dimensional accuracy varies with the materials used; rigid boards made from epoxy glass cloth laminate and paper-based phenolic laminate can be processed via CNC drilling and milling, while polyester and polyamide films can be shaped with dies.

11. Film-like reinforced plates typically do not require fine hole processing and can be drilled or molded with CNC techniques. Streamlining this process can significantly reduce manufacturing costs.

12. Aligning and positioning the reinforcement board on the flexible printed circuit board is challenging to automate and constitutes a large portion of the processing costs, necessitating manual labor. If multiple reinforced boards of different materials are required, costs can increase.

13. Conversely, simplified designs or user-friendly jigs can greatly enhance production efficiency and lower costs. Factories are continuously striving to improve this process, yet skilled personnel are still needed for operation.

14. Advantages include significant reductions in volume and weight of electronic products, aligning with the trends of high density, miniaturization, and reliability. Consequently, FPCs have gained widespread application in aerospace, military, mobile communications, laptops, peripherals, PDAs, digital cameras, and more.

15. Additionally, FPCs can be arranged according to spatial layout requirements, allowing movement and expansion in three-dimensional space to facilitate the integration of component assembly and wire connections.