Four layer FR-4 PCB

1.four layer 6 fr-4 pcb 2.thickness:0.4-3.0mm 3.copper:H-4 OZ 4.94V0, surface finish: OSP,HASL,GOLD 5.MAX SIZE:1500*1200MM

Number	Item	Technical specification
1	Layer	12
2	Processing area of the largest	1500x1200mm
3	Minimum thickness	2 layers 0.20mm 8mil     4 layers 0.40mm 16mil     6 layers 1.00mm 40mil     8layers 1.20mm 48mil     layers 1.60mm 64mil
4	Minimum line width	0.075mm 3mil
5	Minimum space	0.075mm 3mil
6	Minimum aperture	0.20mm 8mil
7	Hole wall copper thickness	0.025mm 1mil
8	Metal tolerance of aperture	±0.075mm 3mil
9	Tolerance of mon-metallic aperture	±0.05mm 2mil
10	Hole tolerance	±0.05mm 2mil
11	Dimension tolerance	±0.13mm 5mil
12	Minimum solder bridge	0.10mm 4mil

1.six layer 6  fr-4 pcb2.thickness:0.4-3.0mm3.copper:H-4 OZ4.94V0, surface finish: OSP,HASL,GOLD5.MAX SIZE:1500*1200MM

Four layer FR-4 PCB