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Flexible PCB
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Layer count 1-25 layers
Base Material Polyimide (PI), Polyester (PET), or other flexible materials
Board Thickness 0.05mm - 0.3mm (depending on layer count and material)
Copper Thickness 0.5 oz - 2 oz (17.5μm - 70μm)
Minimum Hole Size 0.15mm for mechanical drilling, 0.075mm for laser drilling
Minimum Trace/Space Width 3 mils (75μm) for 0.5oz copper and 4 mils (100μm) for 1oz copper, but it can vary depending on design specs
Solder Mask Green, Yellow, White, Black, Blue, Red, and other custom colors
Silkscreen White, Black, Yellow, and other custom colors
Surface Finishes ENIG, OSP, Immersion Silver, Immersion Tin, and others
Coverlay Flexible film, either adhesiveless or adhesive-based, typically made of Polyimide
Stiffeners Optional, made of Polyimide, FR4, or stainless steel, to provide support and rigidity to specific areas of the PCB
Bend Radius Depends on the material, overall thickness, and copper weight; typically for polyimide, it is 6-10 times the overall thickness
Dielectric Thickness 12.5μm - 75μm, but it can vary depending on the material and design
Certification ISO9001:2015;ISO13485:2016;ROHS,UL 94v0, IPC-600G classll and IPC-6012B classll standard