Lead frame of metal etching
1. Material 4J42 Thickness 0.25mm 2.Length 48mm width 48mm 3 Have line 280 strip .
Etching process
1.material clean
2.wet film
3.Exposure
4.Development
5.Etching workshop
Lead frame of metal etching
1. Material 4J42 Thickness 0.25mm 2.Length 48mm width 48mm 3 Have line 280 strip .
Etching process
1.material clean
2.wet film
3.Exposure
4.Development
5.Etching workshop
Lead frame of metal etching