Advantages:

1. Flexibility – Flexible PCBs offer easier routing and connection in three-dimensional space, as well as the ability to be rolled or folded for use within allowable radius of curvature. This design enables it to withstand thousands to tens of thousands of uses without damage.
2. Size Reduction – In comparison to traditional conductive cables, flexible PCBs present a thinner and flatter conductor cross-section. This reduction in wire size allows for a more compact and streamlined device structure, resulting in space savings of 60-90% compared to rigid PCBs.
3. Weight Reduction – Flexible PCBs can reduce weight by approximately 70% when compared to wire and cable, and by about 90% when compared to rigid PCBs with the same current carrying capacity.
4. Consistent Installation and Connection – When assembled and connected with flexible PCBs, it eliminates errors in wiring with wire and cable. Future winding circuits produced will be consistent, reducing the risk of misconnection during installation.
5. Increased Reliability – The use of flexible PCBs reduces transfer interconnection and improves the system’s overall reliability, facilitating easier fault inspection.
6. Electrical Parameter Design Control – Designers have control over capacitance, inductance, characteristic impedance, delay, and attenuation, offering a level of controllability that is not easily achievable with wire and cable.
7. Soldering Advantage – Like rigid PCBs, flexible PCBs feature terminal pads that facilitate soldering, eliminating the need for wire stripping and tinning, resulting in cost savings.
8. Material Selection – Flexible PCBs can be manufactured with different base materials to meet varying usage requirements, providing flexibility in design and performance.
9. Cost-Effectiveness – Utilizing flexible PCBs in assembly applications can reduce total costs by offering consistency in various parameters, simplifying structural design, and allowing for continuous production.
10. Process Continuity – Continuous production of flexible PCBs is possible due to their ability to be supplied in rolls, contributing to cost reduction.
    Disadvantages:
11. High Initial Cost – The specialized design and manufacturing process of flexible PCBs may result in a higher initial cost. It is generally not recommended for small-scale applications unless there is a specific need for its use.
12. Difficulty in Change and Repair – Once manufactured, flexible PCBs are challenging to modify or repair, requiring changes from the base map or the compiled light drawing program, as well as careful removal and restoration of protective film during repairs.
13. Size Limitations – Due to the limitations of production equipment, flexible PCBs cannot be manufactured in very long or wide sizes.
14. Vulnerable to Damage – Improper installation and connection can easily damage the flexible circuit, requiring skilled personnel for soldering and rework.