How Rigid and Flex PCBs Are Manufactured

Introduction

Rigid and Flex PCBs go through different manufacturing processes due to their material differences.

1. Manufacturing Rigid PCBs

• Use FR4 material for a strong and non-bendable structure.
• Drilling, copper plating, and etching create circuits.
• Components are soldered onto a solid board.

2. Manufacturing Flex PCBs

• Made from polyimide, a flexible yet durable material.
• Require specialized layering and protective coatings.
• Designed to bend without breaking.

3. Quality Control Differences

• Rigid PCBs undergo standard electrical and thermal testing.
• Flex PCBs need bend and flex cycle testing.

Conclusion

The manufacturing process of Flex PCBs is more complex, but they provide unique advantages for space-saving and lightweight applications.