Flexible PCB

Flexible printed circuits board (Flexible PCB) is a kind of electronical conductors with conductive pathway printed on a bendable film that acts as an insulating (dielectric) base material and coated with a dielectric cover layer on the top. Depands on your interface requirements, the Flexible PCB can be developed using polyester or polyimide (Kapton) as the base material.

The structure can be rigid or flexible to reduce interconnection and incorporate tails directly into the circuit. Flexible PCB can be designed from simple single layer copper flex on polyester(single layer FPCB), to complex double sided on polyimide(double layer FPCB), and even intricate multi-layer composition.


High-quality flexible PCB and efficient OEM/ODM service


Elcom insists in providing high-quality and high-reliability flexible PCB to our clients. All flexible PCB products pass strict quality control processes. The customized flexible PCB/PCBA are available with our well-established and efficient OEM/ODM procedure. If you are interested in our flexible PCB products, please feel free to contact our service-oriented project managers!

Inquiry

  • Single Sided Flexible PCB
    Single Side Flexible PCB
  • Single layer Flexible PCB consisted of one conductive layer, suitable when space is limited.

  • Double Sided Flexible PCB
    DoubleSideFlexible PCB
  • Double layer Flexible PCB is make of two conductive layers with an insulating layer between. It is a ideal product when circuit density is required.

  • Multi Layer Flex
    Multi Layer Flexible PCB
  • The multi-layer flex is the FPC combines either single sided Flexible PCB and double sided Flexible PCB. It's a efficient solution when met the unavoidable crossovers.

Specification of Flexible PCB:
Maximum Size 500 x 1000mm
Plating Tin-Lead, Nickel and Gold
Minimum Spacing Between Circuits 3 mil
Minimum Drill Size 0.2mm
Minimum Annual Ring 4 mil
Peel-Off Strength 1.0N/mm
PTH Wall Copper Thickness 0.025mm
Standard Line Width: 0.25mm, Minimum Line Width: 0.10mm
Standard Trace Pitch: 0.5mm, Minimum Trace Pitch: 0.2mm

Thickness Tolerance of Flexible PCB:

Single Sided 0.013mm
Double Sided 0.025mm
Rigid Flex 0.050 to 0.178mm
Hole Dia. Tolerance(PTH) ±0.05mm
Outline Tolerance ±0.1mm

Materials of Flexible PCB:

Base Material and Thickness Polyimide (0.025mm , 0.050mm) or Polyester (0.076mm, 0.127mm)
Conductor (Copper-RA or ED) 1/3oz, 1/2oz, 1oz
Coverlay Layer and Thickness Polyimide (0.025mm), Polyester (0.050mm)
Stiffener Material FR-4, Mylar or Kapton

Benefits of flex circuits board compared to traditional cabling and rigid boards include:

  • Reduced wiring errors
  • Elimination of mechanical connectors
  • Unparalleled design flexibility
  • Higher circuit density
  • More robust operating temperature range
  • Stronger signal quality
  • Improved reliability and impedance control
  • Size and weight reduction