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6 Layer Rigid PCB Polyimide with Step down Finger on Layer 3

Step-down fingers, also known as contact fingers, are connectors lined up along the edge of the substrate. In an application, they are used to connect the PCB to other electronic devices or to another PCB. For this kind of PCB, we provide 1.6mm board thickness, 1OZ copper thickness, and a minimum hole size of 4 mil. Gold is used as the primary PCB surface finish. At Rigiflex, we utilize raw materials such as lead free HASL, immersion tin, or gold as surface finishes for the step down fingers. The rigid PCBs can mounted as PTH and NPTH. For PTH, the hole diameter is ±0.075mm, while the hole diameter for NPTH is ±0.05mm.

6 Layer Rigid PCB Polyimide with Step down Finger on Layer 3
Model:6L PCB
Base Material:6L, FR4,TG135
Board Thickness:1.6 mm
Copper Thickness:1OZ
Min. Hole Size:4mil (0.1mm)
Min. Width/Gap:4/5mil
Surface Finishing:Gold
Rigid PCB Capability
No.ItemTechnical data
1Layer Count1-30Layers
2HDI Type1+N+1, 2+N+2
3MaterialCEM3, FR-4, Halogen Free, Aluminum-based, Teflon, Rogers, Getek, Nelco, PTFE, Polyimide etc
4Board thickness0.2~5.0mm
5Board SizeMax.18”x24”
6Copper ThicknessOuter layer1oz~6oz
Inner layerHoz~5oz
7Min. Line Width/Space4/4mil(0.1/0.1mm)
8Finished Hole sizeMechanical0.20~6.30mm
Laser5mil, 6mil
9Blind/buried via(Mechanical)0.2mm (min)
10Aspect Ratio10:1
11Hole Dia.TolerancePTH±0.075mm(3mil)
NPTH±0.05mm (2mil)
12Hole Position Tolerance±0.05mm (2mil)
13Bow & Twist≤0.75%
14Peel strength1.4N/mm
15Thermal stress288℃ & 20 Sec
16Test Voltage50-300V
17Soldermask colorGreen, Red, Blue, Black, White
18Silkscreen colorWhite, Black, Yellow
19Min. S/M Pitch4mil(0.1mm)
20Min. Solder Mask Clearance0.05mm
21Impedance Control Tolerance+/-10%
22Outline Tolerance±0.10mm (4mil)
23Surface FinishHASL, Lead free HASL, Immersion Gold/Tin/Silver, OSP, Flash Gold, Gold fingers, Plating Hard Gold, Carbon lnk, Peelable mask

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