1. FPC is short for Flexible Printed Circuit, also known as a flexible circuit board or flexible PCB. It boasts high wiring density, light weight, and thin thickness, among other characteristics.
1. The criteria for judging the quality of FPC flexible boards are as follows:
2. Size and Thickness Standards:
The size and thickness of the standard rules for flexible circuit boards differ from those of rigid circuit boards. Customers should measure and verify the thickness and specifications according to their product requirements.
3. Surface Finish and Color:
External circuit boards are coated with ink, which serves as insulation. A bright color indicates sufficient ink coverage, ensuring good insulation properties. Conversely, a dull color suggests inadequate insulation, compromising board quality.
4. Weld Seam Appearance:
Due to the multitude of components, proper welding is crucial to prevent component detachment. A visually appealing weld seam indicates careful attention to detail, ensuring robust connections.
Quality FPC circuit boards must adhere to the following requirements:
1. Component Functionality:
Components installed on the board, particularly those in telecommunication devices, must function properly, ensuring electrical connections meet operational demands.
2. Line Specifications:
Line width, thickness, and spacing must comply with specifications to prevent issues such as overheating, disconnection, and short circuits.
3. Copper Adhesion:
The high-temperature copper layer should adhere firmly, minimizing the risk of detachment during use.
4. Oxidation Resistance:
Copper surfaces must resist oxidation to maintain installation efficiency and prevent premature failure due to oxidation.
5. Electromagnetic Compatibility:
FPC boards should not emit additional electromagnetic radiation, ensuring compatibility with surrounding electronic devices.
6. Shape Stability:
Boards must maintain their shape to prevent deformation, which can lead to misalignment of enclosures and screw holes during installation.
7. Environmental Resistance:
FPC boards should withstand high temperatures, humidity, and other environmental stressors within specified limits.
8. Mechanical Properties:
Surface mechanical properties should meet installation requirements, ensuring reliable performance in various applications.
1. The criteria for judging the quality of FPC flexible boards are as follows:
2. Size and Thickness Standards:
The size and thickness of the standard rules for flexible circuit boards differ from those of rigid circuit boards. Customers should measure and verify the thickness and specifications according to their product requirements.
3. Surface Finish and Color:
External circuit boards are coated with ink, which serves as insulation. A bright color indicates sufficient ink coverage, ensuring good insulation properties. Conversely, a dull color suggests inadequate insulation, compromising board quality.
4. Weld Seam Appearance:
Due to the multitude of components, proper welding is crucial to prevent component detachment. A visually appealing weld seam indicates careful attention to detail, ensuring robust connections.
Quality FPC circuit boards must adhere to the following requirements:
1. Component Functionality:
Components installed on the board, particularly those in telecommunication devices, must function properly, ensuring electrical connections meet operational demands.
2. Line Specifications:
Line width, thickness, and spacing must comply with specifications to prevent issues such as overheating, disconnection, and short circuits.
3. Copper Adhesion:
The high-temperature copper layer should adhere firmly, minimizing the risk of detachment during use.
4. Oxidation Resistance:
Copper surfaces must resist oxidation to maintain installation efficiency and prevent premature failure due to oxidation.
5. Electromagnetic Compatibility:
FPC boards should not emit additional electromagnetic radiation, ensuring compatibility with surrounding electronic devices.
6. Shape Stability:
Boards must maintain their shape to prevent deformation, which can lead to misalignment of enclosures and screw holes during installation.
7. Environmental Resistance:
FPC boards should withstand high temperatures, humidity, and other environmental stressors within specified limits.
8. Mechanical Properties:
Surface mechanical properties should meet installation requirements, ensuring reliable performance in various applications.
