Flexible high‑temp Polyimide PCB for aerospace and down‑hole tools

Polyimide PCB is a special type of printed circuit board that uses polyimide (PI) as the substrate material. This material is renowned for its exceptional high-temperature resistance, excellent flexibility, and superior chemical stability.

Type Classification

◈ Flexible Polyimide PCB
- Bendable and foldable
- Used for dynamic bending applications
◈ Rigid Polyimide PCB
- Maintains rigid structure
- Primarily used in high-temperature environments
◈ Rigd-Flex Polyimide PCB
- Combines rigid and flexible sections
- Solution for complex three-dimensional routing

Key Characteristics

◈ High-Temperature Resistance
- Glass transition temperature (Tg) as high as 250°C or above
- Operable in extreme temperatures from -269°C to +400°C
- Can withstand short-term exposure up to 500°C
◈ Mechanical Properties
- Outstanding flexibility and bendability
- High tensile strength
- Good dimensional stability
◈ Electrical Properties
- Stable dielectric constant (typically around 3.4-3.5)
- Low dielectric loss
- Excellent insulation performance
◈ Chemical Stability
- Resistant to most chemical solvents
- Radiation resistant
- Low moisture absorption

Application Areas

◈ Aerospace: Satellite systems, Avionics equipment, Spacecraft internal circuitry
◈ Military & Defense: Missile guidance systems, Military communication equipment, Battlefield electronic devices
◈ Medical Devices: Implantable medical devices, Circuitry for high-temperature sterilization equipment, Medical imaging systems
◈ Industrial & Automotive: Engine control systems, High-temperature industrial sensors, New energy vehicle power systems
◈ Consumer Electronics: Flexible displays, Wearable devices, Internal circuitry for foldable phones.