Flexible PCB (FPC)

1. When should I use a flexible PCB?

2. What materials are used in flexible PCBs?

3. What is the minimum bend radius for a flexible PCB?

4. What are the disadvantages of flex PCB?

5. How many times can a flexible PCB bend?

6. How many layers does a flex PCB have?

7. Are flexible PCBs more expensive than rigid PCBs?

8. What is the maximum reflow soldering temperature for flex PCBs?

9. Should I use coverlay or LPI solder mask on a flexible PCB?

10. Which stiffener types do you support for flex PCB design?

11. In a 2-layer flex PCB, is the stiffener located between the two layers?

12. How many flex cycles are your flexible PCBs rated for?

13. Can a stiffener on a flex PCB have electrical connections?

14. Can you control flex PCB impedance for 90-ohm differential USB?

15. What is the minimum bend radius for 1-layer and 2-layer flex PCBs (FPC)?

16. Do you fabricate rigid-flex PCBs (FR4 + FPC)?