Flexible circuits (also variously referred to around the globe as flex circuits, flexible printed circuit boards, flex print, flexi-circuits) are members of electronic and interconnection family. They consist of a thin insulating polymer film having conductive circuit patterns affixed thereto and typically supplied with a thin polymer coating to protect the conductor circuits. The technology has been used for interconnecting electronic devices since the 1950s in one form or another. It is now one of the most important interconnection technologies in use for the manufacture of many of today’s most advanced electronic products.



Flex PCB are used extensively in applications and industries including:

  • Communications
  • Industrial
  • Consumer Electronics
  • Aerospace
  • Automotive
  • Medical
  • Transportation

Flex PCB Capability:

Items   Mass Production Low Volume
Layer of flex board Single and double panel 8L
PCB Thickness ≤0.3mm /
Line width/Line space Inner layer 3mil/3mil (HOz) 2.5mil/2.5mil (HOz)
Outer layer 4mil/4mil (1Oz) 3mil/3mil (1Oz)
Annular Ring ≥4mil /
BGA 0.15mm BGA 0.15mm BGA
Tolerance of outline  (Board edge to board edge) +/-0.025mm /
Tolerance of outline  (Mark  to board edge) +/-0.05mm +/-0.025mm
Impedance control +/-10% /
Drilling Machine drilling ≥8mil 6mil
Laser drilling 5mil/6mil 4mil
Surface coating  ENIG, OSP

Flex PCB Attributes:

Material PI
Layers 4L
Copper thickness 1oz
Board thickness 0.1mm
Surface treatment OSP
Track width/Space 4/4mil
Hole size 0.25mm

Why you need to choose the Flex PCB?

1. Flex PCBs are incredibly space-saving. In fact, it only requires 10% of space compared to the conventional standard PCBs. It offers great freedom when it comes to packaging and installation.
2. You can achieve the tightest blend capacity with the flex PCBs. Its permeability and flexibility offer such bending.
3. The flex boards work with only a minimal number of interconnections. Fewer connections mean the PCB will need fewer solder joints and contact crimps. It implies that fewer loopholes are resulting in the least failures. Thus, it dramatically enhances the reliability of the components.
4. It works with every possible connector and component available in the market. Also, it works better with ZIP connectors. So, you get enhanced capabilities with the use of these circuits.
5. The flexible circuits are made to function under extreme and challenging conditions. So, these circuits won’t face reduced performance even when the temperature is high or in the presence of chemicals and radiation. To put it simply, these are temperature, chemical, and radiation-resistant.
6. Flexible circuits have fewer connections and components. Also, it comes in a smaller size. All these results in an extreme saving of flexible PCB cost. So, you can save a considerable amount with the flexible circuits.