|
Inner copper thickness |
17um--210um |
|
Borehole diameter (mechanical drill) |
0.2mm-6.5mm |
|
Hole diameter (mechanical drill) |
0.20mm--6.4mm |
|
Hole diameter tolerance (mechanical drill) |
0.075mm |
|
Hole location tolerance (mechanical drilling) |
0.05mm |
|
Plate thickness aperture ratio |
10:1 |
|
Resistance welding type |
Photosensitive ink |
|
Minimum resistance welding bridge width |
0.08mm |
|
Minimum resistance welding isolating ring |
0.05mm |
|
Plug hole diameter |
0.25mm--0.60mm |
|
Impedance tolerance |
±10% |
|
Type of surface treatment |
Tin spraying, gold deposition, electrowinning, silver melting, OSP, etc |
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