STANDARD PTH EXEMPLES
STANDARD PTH EXEMPLES
The figure below details the different layers of a plated through hole (PTH). horizontal section (Fig. VH1) and vertical (Fig. VH2).
A: FR4 + soldermask
B: FR4
C: plating
D: copper core
E: Ring
Standard sizes for traditional components:
x - diam. finished hole: 0.8 mm
- size of the ring: 1.2 mm
y - diam. drilling before metallization
Standard dimensions for via:
x - diam. finished hole: 0.2 mm
- size of the ring: 0.4 mm
Standard sizes for micro-via:
x - diam. finished hole: 0.1 mm
- size of the ring: 0.3 mm
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