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  Crafts Process ability
 
 Capabilities(pcb)
Process Item Description Uniwell Capability UL Capability
Material Cutting Max .Dimension 21.5" x 24.5" 21.5" x 24.5" No restriction
Inner Layer Min.lin/Space 3.0 mil / 3.0 mil 3.0 mil / 3.0 mil Min trace widths and
spacing ≥3 mil
Copper Thickness 1/3 - 2oz 1/3 - 2oz ≤3 oz
Registration Tolerance +/- 0.05mm +/- 0.05mm No requirement
Lamination Press Layer Count 2 - 22 layers 2 - 22 layers No requirement
Thickness 0.4 - 4.0mm 0.4 - 4.0mm ≥0.38mm
Drilling Min.Hole Diameter 0.15 mm 0.2 mm No requirement
PTH Diameter Tolerance +/- 0.05mm +/- 0.05mm No requirement
NPTH Diameter Tolerance +/- 0.025mm +/- 0.025mm No requirement
Aspect Ratio 10:1 8:1 No requirement
Outer Layer Min. Line/Space 3.0 mil / 3.0 mil 3.0 mil / 3.0 mil Min trace widths and spacing ≥ 3mil
Copper Thickness 1/3 - 4oz 1/3 - 4oz ≥ 0.5 oz
Registration Tolerance +/- 0.05mm +/- 0.05mm No requirement
Impedance Control +/- 10% +/- 10% No requirement
Process Item Description Uniwell Capability UL Capability
Solder Masking Min.Solder Dam 0.08mm 0.08mm No requirement
Min.Solder Mask Opening 0.05mm 0.05mm No requirement
Registration Tolerance +/- 0.05mm +/- 0.05mm No requirement
Solder Mask Plugging ≤0.6mm ≤0.55mm No requirement
Surface Treatment Enig Ni: 2.5-8.0um; Ni: 2.5-8.0um; No requirement
Au: 0.025-0.10um Au: 0.025-0.10um No requirement
OSP 0.15-0.3um 0.15-0.3um No requirement
Immersion Tin 0.2 - 0.5um 0.2 - 0.5um No requirement
Immersion Silver 0.8 - 1.0um 0.8 - 1.0um No requirement
LF-HASL ≥1.0um ≥1.0um No requirement
Final Product Thickness Tolerrance +/- 10% +/- 10% No requirement
Warpage Tolerrance ≤ 0.5% ≤ 0.5% No requirement
Bestpcb Co., LTD.       
Add:  6F,Gantou industrial park,Houtingnan,Sajing  street  Shenzhen city, China.