PARAMETERS MANUFACTURE DOUBLE SIDE
CLASS 3 CLASS 4 CLASS 5 CLASS 6 CLASS 7
Minimum plated through hole diameter See diagram... 20 mil 12 mil 12 mil 8 mil 6 mil
Minimum non plated through hole diameter See diagram... 24 mil 16 mil 16 mil 12 mil 10 mil
Aspect / Ratio See diagram... 5 5 6 8 13 (maximum
thickness 2 mm)
Minimum trace / spacing width See diagram... 12 mil ( oz )
12 mil (1 oz )
14 mil (2 oz )
8 mil ( oz )
8 mil (1 oz )
10 mil (2 oz )
6 mil ( oz )
6 mil (1 oz )
8 mil (2 oz )
5 mil ( oz )
6 mil (1 oz )
7 mil (2 oz )
4 mil ( oz )

Minimum annular ring
See diagram... 9 mil 7 mil 5 mil 4 mil 3 mils


Last update: 19-05-2007
Units: Mils