| Multilayer |
 |
Double-sided
throughplated |
 |
Single-sided |
| cutting internal layers |
cutting |
cutting |
| mechanical cleaning |
drilling |
drilling |
| photo-printed
pattern layout |
de-burring |
mechanical cleaning |
| etching |
plated through |
photo-printed
pattern layout |
| stripping |
mechanical cleaning |
etching |
| cleaning |
photo-printed
pattern layout |
stripping |
| pre-treatment |
copper plating |
|
| oxidation |
stripping resist |
|
| press-moulding |
etching |
|
| tempering |
stripping etch-resist |
|
| |
visual inspection |
|
| |
mechanical cleaning |
|
| Connector gold plating |
solder resist |
|
| covering pattern layout |
surface
HAL
chemical Ni / Au /
others |
|
connector gold plating
galvanic
5 µm Ni / 1 µm Au |
insertion printing /
peelable mask /
carbon printing |
|
| stripping |
milling /
V-scoring / punching |
|
| covering connectors |
electrical test |
|
| |
final inspection |
|
 |
|
|
|
|
