| Serial NO. |
Procedure |
Item |
Manufacturing capability |
| Large volume （S<100 m2） |
Middle volume （S<10 m2） |
Prototype（S<1m2） |
| 48 |
Silkscreen |
Min.width of silkscreen text |
6mil |
6mil |
5mil |
| 49 |
Min.height of silkscreen text |
35mil |
35mil |
30mil |
| 50 |
Min.space from silkscreen to pads |
6mil |
6mil |
5mil |
| 51 |
Colour of silkscreen |
White, Black, Yellow |
| 52 |
Carbon ink |
Carbon ink covers conductor or pads |
14mil |
13mil |
12mil |
| 53 |
Mid distance from carbon ink to pads |
12mil |
11mil |
10mil |
| 54 |
Peelable mask |
Peelable mask covers conductor or pads |
8mil |
7mil |
6mil |
| 55 |
Min.distance from peelable mask to pads |
14mil |
13mil |
12mil |
| 56 |
Max.via-plug of Silk-screen method |
2.0mm |
2.0mm |
2.0mm |
| 57 |
Max. via-plug of aluminum foil method |
4.5mm |
4.5mm |
4.5mm |
| 58 |
Surface finish |
Thickness of nickel of ENIG |
3-5um |
3-5um |
2-6.35um |
| 59 |
Thickness of Gold of ENIG |
0.05-0.1um |
| 60 |
Thickness of nickel of Gold finger |
3-5um |
| 61 |
Thickness of Gold of Gold finger |
0.1-1.27um |
| 62 |
Thickness of tin of HASL |
2.54-6.35um |
| 63 |
Thickness of OSP |
0.2-0.5um |
| 64 |
Thickness of tin of Immersion tin |
0.2-0.75um |
| 65 |
Thickness of silver of Immersion silver |
0.15-0.75um |
