FR4 4mm thickness 12 layers immersion tin PCB
FR4 PCB ,4mm thickness PCB, 12 layers PCB
1) Thickness: 0.1mm-5mm
2) Minimum linewidth:0.075mm/3mil.
3) Minimum gap:0.065/2.8mil.
4) Minimum aperture inradium:0.15mm
5) Minimum aperture external diameter:0.45mm.
6) Minimum BGA: 0.2mm.
7) Layer:4 layers through hole non-impedance.
All multilayer boards are printed with 36t screen, the resistance
welding oil is 50 tons thicker than the traditional 43t, which
provides reliability guarantee for the bga and more precise fine