Key points of PCB double-sided flexible board design and production

Aug 29,2025

PCB double-sided flexible board is a circuit board with bending and folding properties. Compared with traditional rigid boards, flexible boards can be bent and bent in different shapes and sizes without affecting circuit performance, thus meeting the needs of circuits in different application scenarios. Hubei Chucang Electronics Co., Ltd. needs to consider the following requirements when designing and installing double-sided flexible boards:
1、 Design requirements:
1. Optimize circuit layout: Minimize the number of layers and area of the circuit as much as possible, layout the circuit on one surface, and avoid making multi-layer cross wiring on flexible boards to avoid signal interference and shielding.
2. Control wiring width and spacing: Select the appropriate wiring width and spacing based on the signal frequency and power in the circuit to meet the requirements for signal quality and EMC (electromagnetic compatibility).
3. Increase grounding and power supply: When designing double-sided flexible boards, consideration should be given to increasing grounding and power supply to improve the reliability and stability of the circuit.
4. Consider local reinforcement: Metal reinforcement rings or gaskets can be added to the holes and thin sheets of the flexible board for local reinforcement to prevent high stress local fracture during installation and use.
2、 Manufacturing requirements:
1. Choose appropriate materials: When selecting flexible board materials, factors such as adhesion, temperature resistance, chemical corrosion resistance, electrical performance, etc. need to be considered to meet the requirements of different application scenarios.
2. Control machining accuracy: When manufacturing double-sided flexible boards, it is necessary to control machining accuracy to avoid errors and damage during the machining process, which may affect circuit performance.
3. Avoid "ripple" phenomenon: When manufacturing and installing flexible boards, attention should be paid to avoiding "ripple" phenomenon caused by improper handling, which affects the stability and reliability of the circuit.
3、 Installation requirements:
1. Avoid excessive bending: When installing double-sided flexible boards, it is necessary to avoid excessive bending and folding to prevent detachment and damage between circuit layers.
2. Control temperature and humidity: When installing flexible boards, it is necessary to control the temperature and humidity of the environment to avoid deformation and aging of the board.
3. Avoid mechanical damage: When installing and using flexible boards, it is necessary to avoid mechanical damage and scratches to protect the integrity of the board and circuit.
The above is the relevant content about the design and installation requirements of PCB double-sided flexible board. In practical applications, specific design and manufacturing are required based on different projects and requirements to meet the demands of different scenarios.