Flexible PCB

Home / Flexible PCB

Flexible PCB Fabrication

As an expert of electronic manufacturing services, PCBBOX is offering flexible PCBs to global customers with excellent quality and cost efficiency, which are widely applied in compact devices. Flexible PCBs, also known as flex PCBs or flexible printed circuit boards, are a type of PCB that can bend and flex to fit into various shapes and spaces with advantages:
1. Flexibility: Can be bent, folded, or twisted to fit into compact spaces.
2. Lightweight: Reduces the overall weight of the electronic device.
3. Durability: Resistant to vibration and mechanical stress.
4. Reduced Connections: Fewer connectors and solder joints, reducing potential points of failure.

Flexible PCB
No. Item             Process  Capability Parameter            
1            

PCB Type                

Flexible PCB                
2             Quality Grade             Standard IPC 2            
3             Material             PI, PET            
4             Number of Layers             1 Layer, 2 Layers, 4 Layers, 6 Layers, 8 Layers            
5             Max PCB Size            

1 Layer: 4000mm*240mm                

2 Layers: 800mm*240mm                

Multi-layers: 350mm*240mm                
6            

Board Size Tolerance                

(Outline)                

 ±0.1mm            
7             FPC Thickness             0.08~0.4mm+            
8             TPC Thickness Tolerance            

FPC Thickness≤0.3mm: ±0.03mm                

FPC Thickness＞0.3mm: ±10%~15%                
9             Types of Copper Foil             Rolled Copper Foil/Electrode Posited Copper            
10             Copper Thickness             0.5oz, 1oz, 1.5oz, 2oz            
11             Min Tracing/Spacing             ≥2mil            
12             Grid line Tracing/Spacing             ≥0.1mm            
13             Soldering Pad Diameter             ≥0.3mm            
14             Quality Grade             Standard IPC 2            
15             Lead Time             5-7 days            
16             Coverlay             Yellow, White, Black, None            
17             Coverlay Opening Size             ≥0.6mm*0.6mm            
18             Min Spacing Colverlay to Soldering Pad             ≥0.15mm            
19             Soldermask Color             Green and others            
20             Soldermask Bridge            

Green: ≥0.1mm                

Others: ≥0.15mm                
21            

Min Width of Soldermask and Soldering                

 Pad                

Green: ≥0.08mm                

Others: ≥0.2mm                
22             Silkscreen             White, Black, None            
23             Minimum Character Width (Legend)             ≥0.8mm            
24            

Minimum Character Height (Legend)                

 ≥0.8mm            
25            

Min Spacing from Silkscreen to Soldering                

 Pad                

 ≥0.2mm            
26             Surface Finish            

ENIG, OSP, Immersion Tin, Chemical Silver                
27             Impedance Control             Single-ended 50Ω, Differential Pairs100Ω, Tolerance ±10%            
28             Stiffener Material             PI, FR-4, Aluminum, Steel, Copper            
29             Stiffener Thickness             0.1~0.5mm            
30             Edge Rail Width             ≥10mm            
31             Other Options             3M Tape, EMI Shielding Film            
32             Certification             ISO9001, RoHS            

As technology continues to advance and demand for more compact, lightweight, and innovative electronic devices grows, flex PCBs are expected to play an increasingly important role in the future. The unique characteristics of flex PCBs, including their adaptability, durability, and design versatility, make them well-suited for emerging trends and applications. Runrays are right here to offer you with outstanding PCB manufacturing services.