Shenzhen Lunfeng Technology Co., Ltd
Lunfeng 26 years dedicated to achieve brand value !
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Flexible Circuit Boards Classification Based on Layers
Single-Sided Flexible Circuit Boards
This is among the basic types of flexible circuit boards based on layers. It contains a single layer of polyimide film. It also has a slim layer of copper.
Single-Sided Flexible Circuit Boards with Dual Access
Just like the name suggests, these circuit boards are single-sided but have the copper sheet accessible from both sides.
Double-Sided Flexible Circuit Boards
These particular circuit boards contain a double layer of conductors on either side of the polyimide layer.
Multi-Layered Flexible Circuits
This circuit contains a combination of double-sided and one-sided flexible circuits.
Based on the afore-mentioned types of flexible circuit boards, it is evident that designers and engineers have a wider spectrum of selection for different applications. It is this flexibility that makes flexible circuit boards highly beneficial.
| FPC cable ( Flexible Printed Circuit ) Specifications | |
| Layer | 1-6layer |
| FPC size(max/min) | Min: 10x45mm Max:250x1200mm |
| Thickness | 0.050mm—0.2mm |
| Through Hole diameter(Max) | 6.5mm |
| Through hole size(min) | 0.2mm |
| Through hole tolerance | ±0.025mm |
| Hole copper thickness | Min8μm Max 38μm |
| Min line width/space | 0.04/0.04 mm |
| Etching Tolerance | ±20% |
| The accuracy of the pattern on the hole | ±2mil |
| Punching size(max) | φ3.175mm |
| Punching size(min) | φ2.0mm |
| Punching aperture Thickness(Max) | 0.2mm |
| Thermosetting inks tolerance | ±0.2mm |
| Green oil(Min) | 0.1mm |
| Solder pad(min) | 8mil*8mil |
| Solder pad distance(Min) | 8mil |
| tolerance(Min) | ±0.1mm |
| Available Laminates Material | Pl. PET. FR4-Pl |
| Copper foil thickness | 12um, 18um, 35um, 70um |
FAQ:
Q1: Are you a factory or trade company?
A : Lunfeng is an manufacturer/factory. We pecialize in memrbane switch for 26 years, touch panel for 10 years.
Q2 : Is my switch file safe if I send it to you for manufacturing?
A : We respect customer's design authority and will never manufacture touch panel for someone else without
your permission. NDA is acceptable.
Q3 : Can you copy membrane switch/ graphic overlay / capacitive or resistive touch panel samples without file?
A : Yes, we can clone membrane switch/ graphic overlay / touch panel according to your samples.
Q4 : What payment do you accept ?
A : TT/ Western Union.
Q5 : What's your shipping way ?
A : 1. We have our own forwarder to ship goods by DHL, UPS, FEDEX, TNT, EMS.
2. If you have your own forwarder, we can cooperate with them.
Q6 : How about the MOQ?
A : NO MOQ.
Q7 : What's your main market?
A : Europe, USA, Brazil, Russia, Turkey, Iran, Austrialia, Singapore...
