What is Advanced Flexible PCB?
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.
With the rapid development of electric cars, wearable electronics and the smartphones, circuit boards have growing demand of light weight, smaller size and multi-functionality. Flexible PCBs(FPC) definetly are playing an important role in this revolution. In order to meet market demand, Runrays are opening a production line of Advanced FPC, with fully upgraded equipments, latest manufacturing technologies and an intelligent management system. The quality of each piece of FPC produced by Runrays has been pushed to a higher standard.
Comparison between Polyethylene Terephthalate (PET) and Polyimide (PI)
| Type | Polyester(PET) | Adhesive Polymide | Adhesiveless Polymide |
|---|---|---|---|
| Flexibility (2mm radius) | Bad | Good | Best |
| Tear strength | 800g | 500g | 500g |
| Strip strength in the air | 1050N/M | 1750N/M | 1225N/M |
| Eatching>=20% | BEST | Bad | Good |
| Working temperature | 80 | 85~165 | 105~200 |
| Chip | Bad | Good | Best |
Ability in Process Technology
| Feature | Capability |
|---|---|
| Layer | 1-12 |
| Board thickness (without stiffener) | 4‐40 mil |
| Tolerance of single layer | ±1.0mil |
| Tolerance of double‐layer (≤12mil) | ±1.2 mil |
| Tolerance of multi‐layer (≤12mil) | ±1.2 mil |
| Tolerance of multi‐layer (12mil‐32mil) | ±8% |
| Tolerance of board thickness (including PI stiffener) | ±10% |
| Min. board size | 0.0788” *0.1576” (without bridge) 0.3152” * 0.3152” (with bridge) |
| Max. board size | 8.668” * 27.5” |
| Impedance control tolerance | ±4Ω (≤50Ω), ±7% (>50Ω) |
| Min. coverlay bridge | 8 mil |
| Feature | Capability |
|---|---|
| Min. bend radius of single layer | 3‐6 times of board thickness |
| Min. bend radius of double‐layer | 7‐10 times of board thickness |
| Min. bend radius of multi‐layer | 10‐15 times of board thickness |
| Min. mechanical drill hole | 4 mil |
| Inner Layer Trace/ Space | 2/ 2 mil |
| Outer Layer Trace/ Space | 2/ 2 mil |
| Solder mask color | Green\Black |
| Surface treatment | HASL, ENIG, ENEPIG, Electrolytic Nickel Gold, Soft gold, Hard gold, Immersion silver and OSP, Immersion tin |
| Laser accuracy (Routing) | ±2 mil |
| Punching accuracy (Routing) | ±2 mil ‐ ±6 mil |
Runrays offer a wide range of PCB services, including flex, rigid-flex, and rigid PCB fabrication, ensuring that we can cater to diverse project requirements. We use top-grade materials and state-of-the-art equipment to guarantee optimal performance and reliability of their PCBs. Runrays’ commitment to quality, affordability, and customer satisfaction makes us a top choice for businesses and individuals seeking high-quality, customized, and reliable PCB fabrication services.
