Flex and Rigid-flex circuit boards have become increasing popular due to their unique applications. Flex and Rigid-flex circuit boards can do what regular standard rigid circuit boards can not do. They can fold, twist, and wrap around tight/small packaging area.
Most flex circuit boards are being manufactured using "Kapton", a material developed by Dupont Corporation. This polyimide film based material is resistant to heat, has dimensional stability and a low dielectric constant of 3.6. There are three variants of the Kapton material:
- Pyralux LF (Acrylic Base Adhesive-not Flame Retardant)
- Pyralux FR (Acrylic Base Adhesive-Flame Retardant)
- Pyralux AP (Adhesiveless-for more Demanding high-performance applications)
Learn more about Kapton at www.Dupont.com