NPTH DESCRIPTION
NPTH DESCRIPTION
The figure below shows the cut of a non-plated hole or NPTH (Fig. VH1) .
A : soldermask
B : FR4
C : copper base
Dimensions:
Mini. finished hole diameter: 0.15 mm
Tolerance (diameter) : +/- 0.05mm
Tolerance (position x/y) : +/- 0.03 mm
Max Ratio: 1/10
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