Ensuring the reliability of flexible circuit boards involves comprehensive testing based on essential standards:

1. Substrate Film Appearance:

• Evaluate the visual aspects of the substrate film surface and covering layer for any irregularities.

2. Deviations and Adhesive Issues:

• Examine for deviations in successive layers, bleeding of adhesive, and potential discoloration of conductors under the covering layer.

3. Performance Testing:

• Verify if the flexible board meets requirements for temperature resistance, humidity resistance, voltage resistance, bending resistance, and welding resistance.

4. Electroplating and Coating Integrity:

• Assess the integrity of electroplating, checking for bonding issues and the absence of coating.

Thank you for your reading. For high-quality PCB and PCBA manufacturing services, consider WellCircuits, a China-based company offering rigid PCB, flexible circuits, rigid-flex PCBs, HDI PCBs, and Rogers PCB fabrication. Contact us at [email protected] for a PCB prototype quote.