Single-sided Pyralux® AC Features Excellent Dimensional Stability
DuPont™ Pyralux® AC is an all polyimide single sided copper clad laminate ideal for applications that require thin, light and high density circuitry along with chip-on-flex attachment.
• Excellent dimensional stability
• Low moisture absorption
• High modulus for reliable COF wire bonding
• High flexural endurance
• Excellent thermal resistance
• UL 94 V-0 flammability rating
• Certified to IPC 4204A/11
• UL maximum operating temperature (MOT) 155C
• Available in roll widths of 250, 500, and 610 millimeters
• Available in polyimide thicknesses of 12, 20, 25, and 45 microns
• Available in copper thicknesses of 9, 12, 18, 35, and 79 microns
• Available in copper types RA and ED
• Available in standard roll length of 100 linear meters
Product Data Sheets (1)
Additional Information (1)
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INFORMATION & IDEAS
DESIGN TIP: Pad Only Plating
This process is used on double sided (Type 2) circuits where maximum flexibility is desired.
DESIGN TIP: Epoxy Resin Fillets
The purpose of the fillet is to prevent conductors from being cracked when the circuit is flexed during installation.
DESIGN TIP: Minimum Bend Radius for Flex Circuits
Even though flex circuits are very pliable and flexible, there are limits to their flexibility.
DESIGN TIP: Need for Anchoring Spurs and Pad Fillets
During soldering or assembly operations any stress to the conductor/pad interface can cause a fracture of the conductor.
DESIGN TIP: Balanced Circuit Pattern Reduces Premature Failure
Preventing isolated stress conditions critical to ensure no premature falilure will occur in flexibile circuit
DESIGN TIP: Pad Hold Down Options
Design options for covercoated pad hold down for single-sided and double-sided flex circuit applications