Flexible PCB

Flexible PCB (FPC)were originally designed as a replacement for traditional wire harnesses. From early applications during World War II, to the present, growth and proliferation for flex circuits and flexible PCB (FPC) continues exponentially. A flexible circuit in its purest form is a vast array of conductors bonded to a thin dielectric film. Any one of the following descriptions refers to flexible PCB (FPC):

FPC Highlights (7~8 Day QTA sample,10~15 Day Mass production first lot).

Three Layer Board FPC	Three Layer Board FPC	Double Side Board FPC

Detailed Account of Flexible PCB(FPC)

• Single Side FPC - Material: Polyimide, Copper; Copper: 1.0 oz, ED; Coverlayer: Polyimide, 1 mil; Thickness: 0.1381 mm; Line Width/Space: 3.9mil/3.93mil; Surface Finishing: Immersion Gold; Smallest Hole Diameter: 0.40mm.
• Single Side FPC - Material: Polyimide, Copper; Copper: 1.0 oz, ED; Coverlayer: Polyimide, 1 mil; Thickness: 0.1358 mm; Line Width/Space: 3mil/3.93mil; Surface Finishing: Immersion Gold; Smallest Hole Diameter: 0.6mm.
• Double Side FPC - Material: Polyimide, Copper; Copper: 0.5 oz, RA; Coverlayer: Polyimide, 0.5 mil; Thickness: 0.121 mm; Line Width/Space: 4mil/4mil; Surface Finishing: Immersion Gold; Smallest Hole Diameter: 0.25mm.
• Double Side FPC - Material: Polyimide, Copper; Copper: 0.5 oz﹐RA; Coverlayer: Polyimide,0.5mil; Thickness: 0.12+0.03 mm; Line Width/Space: 6mil /8mil; Surface Finishing: Immersion Gold; Smallest Hole Diameter: 0.3mm.
• Three Layer FPC - Material: Polyimide, Copper; Copper: 0.5 oz, RA; Coverlayer: Polyimide, 0.5 mil; Thickness: 0.23+0.05mm; Line Width/Space: 6mil/6mil; Surface Finishing: Immersion Gold; Smallest Hole Diameter: 0.3mm.
• Three Layer FPC - Material: Polyimide, Copper; Copper: 0.5 oz, RA; Coverlayer: Polyimide, 0.5 mil; Thickness: 0.23+0.05mm; Line Width/Space: 5.7mil/6mil; Surface Finishing: Immersion Gold; Smallest Hole Diameter: 0.3mm.

As a connective device, the primary benefits of flexible circuits compared to traditional cabling and rigid boards include:

• Reduced wiring errors
• Elimination of mechanical connectors
• Unparalleled design flexibility
• Higher circuit density
• More robust operating temperature range
• Stronger signal quality
• Improved reliability and impedance control
• Size and weight reduction

LiJi is a flexible pcb manufacturer specializing in quick turn production of Flexible PCB, LiJi is the leader in providing low cost, reel-to-reel flexible pcb fabrication.