R And F Pcb Boards

We offer our customers a wide range of R And F PCB Boards, which are available following Specifications :-
No. Item craft standard
1 Surface finish spurt Pb, Immersion Au, plating Au, Immersion Ag, OSP, Plating Pin
3 PCB thickness Max 3.5mm
inner boardi Including copper thicknessi 0.2MM
4 PCB size pannel size Max. Not two direction> 540MM (at the same time)
Panel size Min. at least one direction >100mm
Standard pannel size Max.18"*24"
5 Drilling Drilling Bits Min. 0.25mm
Drilling slot knife Min. 0.7MM
Drilling Bits Max. 6.35mm
Hole location tolerance Min A 0.076mm
Diameter Min. A 0.05MM
6 Immersion Copper PTH thickness Max. 25.4UM
PCB thickness:hole diameter 5:1(max)
7 Line Line width Min. 4MIL
Line space Min. 4MIL
NPTH hole unilateral dry film hole sealing >=6mil , standard. >8MIL
dry film hole sealing capacity Max. Hole(5.0MM),slot(5.0*3.0MM)
etching tolerance Min. A 20% or +/-1MIL
layers para-position tolerance 3MIL
8 Electroplating copper thickness of PTH 12UM(min),25.4(max)
electroplating Au Ni thickness 100Ua
Au thickness 0.6-1.5U"
Immersion Au Ni thickness 100-250U"
Au thickness 1-3U"
Immersion Ag thickness 8-10U"
Immersion Pb thickness 0.8-1.0UM
electroplating Pin Ni thickness 100U"
Au thickness 2-10U"
9 solder resist solder resist width >=4MIL
solder resist thickness 8-30UM(line surface),corner <=7UM