Product Overview
Our premium polyimide base films are specifically engineered for flexible printed circuit board (PCB) applications, delivering exceptional performance in demanding electronic environments. These high-performance substrates combine superior mechanical flexibility with outstanding thermal and chemical resistance, making them the ideal foundation for next-generation flexible electronics.
Key Features
Exceptional Thermal Stability
- Operating temperature range: -269ยฐC to +400ยฐC
- Glass transition temperature (Tg): 360-410ยฐC
- Excellent dimensional stability across temperature extremes
- Low coefficient of thermal expansion (CTE)
Superior Mechanical Properties
- High tensile strength and modulus
- Excellent tear and puncture resistance
- Outstanding flex-life performance with minimal stress cracking
- Maintains flexibility after repeated bending cycles
Electrical Excellence
- Low dielectric constant and dissipation factor
- High dielectric strength and insulation resistance
- Excellent signal integrity preservation
- Minimal electrical losses at high frequencies
Chemical Resistance
- Resistant to most organic solvents and acids
- Excellent resistance to radiation and UV exposure
- Hydrolytically stable in humid environments
- Compatible with standard PCB processing chemicals
Technical Specifications
- Thickness Range: 12.5ฮผm to 125ฮผm (0.5 mil to 5 mil)
- Width Options: 100mm to 1,500mm
- Surface Treatment: Available with adhesion promoters for enhanced copper bonding
- Color Options: Amber (standard), colorless, black
- Peel Strength: >1.0 N/mm (copper foil adhesion)
- Dimensional Stability: <0.1% shrinkage at 200ยฐC
Applications
Consumer Electronics
- Smartphones and tablets (flexible displays, camera modules)
- Wearable devices and smartwatches
- Flexible keyboards and touch panels
Automotive Industry
- Engine control units and sensors
- LED lighting systems
- Dashboard electronics and displays
Aerospace & Defense
- Satellite communication systems
- Avionics equipment
- Radar and antenna applications
Medical Devices
- Implantable electronics
- Diagnostic equipment
- Flexible sensor arrays
Industrial Applications
- High-temperature industrial controls
- Flexible solar panel interconnects
- Robotics and automation systems
Processing Advantages
- Easy Handling: Excellent dimensional stability during processing
- Clean Processing: Low outgassing and minimal contamination
- Precision Etching: Sharp, clean circuit patterns with minimal undercutting
- Reliable Lamination: Consistent adhesion properties for multi-layer constructions
- Via Formation: Excellent laser drilling characteristics for microvias
Quality Standards
- IPC-4203: Meets international flexible PCB material standards
- UL Recognition: UL 94 V-0 flame rating
- RoHS Compliant: Lead-free and environmentally friendly
- ISO 9001: Manufactured under strict quality management systems
- REACH Compliant: Meets European chemical safety regulations
Available Configurations
Single-Sided Options
- Polyimide film with single-side copper cladding
- Various copper weights: 0.5 oz to 2 oz
- With or without adhesive layer
Double-Sided Options
- Copper cladding on both sides
- Balanced construction for reduced curl
- Available with coverlay materials
Adhesiveless Options
- Direct copper deposition on polyimide
- Thinner overall construction
- Enhanced flexibility and bend radius
Storage and Handling
- Store in clean, dry environment (โค50% RH)
- Temperature range: 15ยฐC to 30ยฐC
- Protect from direct sunlight and contamination
- Use anti-static handling procedures
- Shelf life: 12 months from manufacture date
Why Choose Our Polyimide Base Films
With over two decades of experience in flexible electronics materials, we deliver consistently high-quality polyimide films that meet the most demanding application requirements. Our advanced manufacturing processes ensure uniform thickness, superior surface quality, and reliable electrical properties that enable our customers to create innovative flexible PCB solutions.
Technical Support: Our experienced applications engineers provide comprehensive design assistance and processing guidance to optimize your flexible PCB performance.
Custom Solutions: We offer tailored specifications including custom thicknesses, surface treatments, and specialty grades for unique application requirements.
