Specifications:

Multi Layers 1-2-4
PCB Material  FR-4
Available Color Green, Red, Yellow, Blue, White, Black
Silk Screen  White, Black (For White Solder Mask only)
Maximum Size 45cm X 120cm
Minimum Qty 10pcs
Board Thickness 0.6mm,0.8mm, 1.0mm, 1.2mm, 1.6mm
Thickness Tolerance (t≥1.0mm) ± 10%
Thickness Tolerance (t<1.0mm) ± 0.1mm
Insulation Layer Thickness  0.075mm--5.00mm
Minimum PCB track   (Recommend >8mil)
Minimum Track/Vias Space   6mil (Recommend >8mil)
Minimum pads Space  8mil
Minimum silkscreen text size  32mil
Out Layer Copper Thickness  1oz(35um)
Inner Layer Copper Thickness  17um
Drilling Hole (Mechanical) 0.3mm—6.35mm
Finish Hole (Mechanical) 0.8mm—6.35mm
Drill Diameter Tolerance (unplated) 0.05mm
Drill Diameter Tolerance (plated) 0.1mm
Outline Tolerance (Mechanical) 
±0.20mm
Aspect Ratio 8:1
Solder Mask Type Photosensitive ink
SMT min Solder Mask Width 0.2mm
Min Solder Mask Clearance 0.2mm
Solder Mask Thickness 15um
Surface Finish HASL, HASL (Lead Free), ENIG

 Special Requirement

(1) For one layer PCB, please leave a comment to tell us that make the board with mask one side or make it with mask both side.
(2) Board outline must be included at least in one layer if there isn't GML/GKO layer.
(3) Gerber “RS-274-X” is the sole format for fabrication, but we can help you to output gerber from other formats, they are “BRD”, “PCBdoc”, “LAY6”.
(4) All the holes will be plated by default, if you need some holes not plated, please name the non-plated holes as pcb.name-NPTH.txt and leave a comment.
(5) For the stencil, we skip through-hole component pads and all drills (holes) by default except the fiducial, so you need to leave a message to us if you need to make the holes of the GTP and GBP.
(6) If you want to make your board with gold finger and beveled edge or edge copper plating, please leave us a comment or contact us in shuyi01@syi808.com,And you may need to pay extra for it.
(7) We could make the PCB without any surface finish and leave the copper exposed, please leave us a comment in your order.
(8) For panelizing , we could make your board with v-cut or mouse bite.You can know more about how to reduce cost with panelizing service on this page.
(9) We will make PCB which is more than 50pcs(including 50pcs) and PCB size is less than 10x10mm with panelizing in default for the PCB size is too small. If you don’t want to do that, please leave us a comment in your order.