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4-Layer ULTRA HDI Flex
4-Layer Ultra HDI flex, ENEPIG (NiPdAu)
Application: R&D
4-Layer ULTRA HDI flex
4-Layer highly miniaturized flex , ENEPIG (NiPdAu)
Application: medical
4-Layer ULTRA HDI Flex
4-Layer ULTRA HDI flex, ENEPIG (NiPdAu)
Application: medical
2 Layer Flex for Wire Bonding
2-Layer flex, ENEPIG (NiPdAu)
Application: R&D
4-Layer ULTRA HDI Edge Plating
4-Layer ULTRA HDI Edge Plating, ENEPIG (NiPdAu)
Application: medical

Flexible PCBs

Flexible printed circuit boards (FPCs) offer the highest level of 3D miniaturization. Very low bending radii in combination with ultra fine lines enable our customers to build increasingly smaller and highly integrated devices. 

Eurotronics and it’s partner production facility have been in this field for many years and manufacture flexible circuits up to 8 layers! 

We are working with polyimide foils as thin as 12.5 µm and adhesive bond plies starting at a thickness of 12.5 µm. State of the art equipment enables us to produce FPCs with high output, reliability and repeatability. Depending on the dielectric thickness, laser drilled blind via’s can be as small as 35 µm in diameter and filled with copper in the subsequent plating process to support the use of stacked or staggered via’s and via-in-pad structures.

High-end alignment tools make it possible to achieve very small annular rings and solder mask registration even on extremely complicated multilayer FPCs. As an option, also cover layer foils can be used.

High accuracy laser contour cutting & optimized the space utilization make it possible to achieve excellent 3D miniaturization for small wearable (medical) devices as well as high signal density COF (chip on flex).

4-Layer-HDI-Flex, copper filled stacked via-in-pad, ENEPIG
ULTRA High density FPCs
  • High-density interconnects (HDIs)
  • 1-8 layer flexible PCBs
  • Circuit board structures down to 25μm
  • Laser micro via’s down to 35μm diameter
  • Annular rings down down to 50μm diameter
  • Copper filled blind via’s
  • Stacked & staggered micro via’s
  • Copper thicknesses down to 9µm~12.5μm
  • Complex contours and depth milling
  • Laser cavities
  • Edge plating
  • Panel and reel-to-reel production 
  • Extensive portfolio of surface finishes for all assembly methods