Typical Specification Range
| Parameter | Typical Range |
|---|---|
| Layer count | 4 layers |
| Material type | Polyimide film, rolled annealed copper |
| Surface finish | ENIG, OSP, immersion silver |
| Thickness | 0.2mm - 0.45mm |
| Solder mask | Yellow, white |
| Copper thickness | 0.33 oz to 1 oz |
| Special features | Stiffeners, controlled impedance, blind vias |
Manufacturing Process Insights
4 layer flexible PCB production starts with copper clad polyimide lamination under controlled pressure and temperature. Precise registration pins maintain layer alignment.
Laser drilling creates microvias. Plasma desmear prepares hole walls before electroless copper plating establishes electrical continuity.
Pattern plating and etching define circuits. Coverlay lamination protects conductors. Surface finish selection balances solderability with flex endurance. Strict process monitoring prevents delamination and copper cracking.
Manufacturing Order Profile
| Order Quantity | Order Proportion | Estimated Price Level | Typical Lead Time |
|---|---|---|---|
| Prototype (<=30 pcs) | 59% | From $180 | From 8 days |
| Small volume (30-200 pcs) | 29% | From $240 | From 9 days |
| Mass production (>200 pcs) | 12% | From $400 | From 9 days |
Manufacturing Challenges & Process Optimization
Design Considerations
Related Products
Common Applications
PCB Solution for Industrial Control
AIVON engineers rugged PCBs for industrial control systems demanding unwavering reliability in harsh environments. Featuring high-Tg materials, heavy copper, and conformal coatings, our solutions withstand extreme heat and vibration. We ensure superior signal integrity and long-term stability for PLCs, robotics, and drives, maximizing your operational uptime.
PCB Solution for Aerospace and Aviation
AIVON provides high-reliability PCBs designed for civil aviation and aerospace applications, built to perform under extreme conditions such as vibration, temperature variation, and high-altitude environments. These PCBs are widely used in avionics systems, flight control modules, communication equipment, and satellite technologies. With advanced multilayer structures, heavy copper options, and high-temperature materials, our solutions are engineered to meet stringent reliability standards such as IPC-6012 Class 3.
PCB Solution for Consumer Electronics
AIVON's consumer electronics PCBs are precision-engineered for smartphones, tablets, laptops, and smart home devices. Using HDI design, fine-line etching, and multilayer fabrication, they deliver compact layouts, high-speed signal transmission, and strong reliability while meeting international quality and environmental standards.
View More Engineering Resources
Why Choose AIVON for 4 Layer Flexible PCB?
AIVON specializes in complex 4-layer flex production. We master multi-layer lamination, precise via-in-pad alignment, and tight impedance control to ensure high-density routing and structural reliability.
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