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Design Guidelines

Minimum hole-size:

The minimum hole-size depends on the material properties and the thickness. However, the guideline of the hole-size in respect to the materical thickness is below:

Thickness:
0.05-0.10mm
0.15-0.20mm
0.25mm or above
Minimum hole diameter
1.2 x material thickness (mm)
1.1 x material thickness (mm)
1.0 x material thickness (mm)

General Tolerance:

The tolerance is dependent on the design and properties of the material.

Thickness:
0.05-0.10mm
0.15-0.20mm
0.25mm or above
Tolerance
+/- 0.01 to 0.02mm
+/- 0.03 to 0.04mm
+/- 0.05mm

Minimum Line Width:

Thickness:
≤ 0.1mm
0.15 to 0.2mm
≥ 0.25mm
Minimum Line Width
= material thickness (mm)
0.1mm
≥ 0.15mm

Etch Profile

Etch profile is maintained at approximately 10 to 20% of the material thickness.

Materials Specification:

  • Copper and Copper Alloys
  • Stainless Steel: SS304, SS301, SS302, SS316, SS430. etc.
  • Nickel, nickel Alloys
  • Mild Steels and Fe-Alloys