FLEX AND RIGID FLEX PCBS

Flex PCBs, also known as flexible printed circuits or flexible electronics, provide greater options for designers and engineers when assembling electronic circuits.

They are constructed from flexible, high-performance plastic material, usually polyimide, which permits the board to be bent (or flexed). This property of flexibility enables their use in a wide variety of applications. They can be built with stiffeners, to create areas that are not able to be bent. They are also used along with rigid pcb to create a rigid-flex assembly to give rigid PCB bendable qualities.

Below are some of the most common types of flex PCB construction:

  • Single-sided flex pcb
  • Back-bared flex circuits
  • Double-sided flex pcbs
  • Sculptured flex circuit board
  • Multi-layer flex circuits
  • Rigid flex pcb

Contact us to get your quote – If you aren’t sure about the specs of your board or if you are ready for us to create a custom quote for you, please email us your Gerber files along with lead time and quantity requirements.

FLEX PCB Capabilities and Tolerances

PROPERTIESENGLISHMETRIC
Maximum Board Size19.68" x 13.38"500 x 340 mm
Maximum Board Thickness
1 (copper) layer
2 layers
4 layers
8.5 mil
12.6 mil
16.5 mil
0.22 mm
0.32 mm
0.42 mm
Min Board Thickness (4 Layers)11.8 mil0.300 mm
Minimum Board Thickness
1 (copper) layer
2 layers
4 layers
2.5 mil
4.7 mil
11.8 mil
0.065 mm
0.12 mm
0.30 mm
Maximum Number of Layers
16 layers
Minimum PTH (Plated Thru Hole) diameter
0.0079"
0.2 mm
Maximum aspect ratio
10:1 (max. thickness 0.0066", min. PTH 0.0079")
10:1 (max. thickness 2mm, min. PTH 0.2 mm)
Minimum Traces/Spaces
0.002" / 0.002"
0.05 mm / 0.05 mm
SURFACE FINISHES  
Lead Solder (HASL)OSP (Entek)
Lead Free Solder (HASL)Electrolysis gold plating
Immersion Gold (Electroless Nickel Gold - ENIG)
Immersion Tin (White Tin)
MATERIAL 
FR-4
Teflon
FR-5
Polyimide
AluminumBT

Questions? If you have any questions or need further information, feel free to call us at 866-301-IPCB (4722) or Email Us

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