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                    • ItemProcess capabilityProcess detail
                      Layer1-20 layersLayers means the noted layers on the file. We can make 1-20layers PCB.
                      MaterialsFR-4, MCPCB, copper PCB、ROGERS、ARLON、Teflon、Composite PCBCTT can produce pcb boards of different materials for different use.
                      Maximum size500mm*600mmUltra long plate above 600mm, the width should no larger than 300mm
                      Shape dimensional accuracy±0.2mmCNC contour tolerance ±0.2mm , V-cut board contour tolerance ±0.5mm
                      Thickness range0.1--5mmCTT can produce with 1-5mm thickness.
                      Thickness tolerance(t≥1.0mm)± 10%Production process (copper deposition, welding resistance, pad plating) will increase the plate thickness, normally in accordance with positive tolerance.
                      Thickness tolerance( t<1.0mm)±0.1mmProduction process (copper deposition, welding resistance, pad plating) will increase the plate thickness, normally in accordance with positive tolerance.
                      Minimum linewidth/gap0.075/0.065mm(3mil/2.8mil)CTT could produce pcb with minium 3mil/2.8 mil linewidth/ gap.
                      Finished PCB outer copper thickness35um/70um/105um(1OZ/2OZ/3OZ)The thickness of copper foil on a finished circuit board, 1 OZ=35um,2 OZ=70um, 3OZ=105um
                      Finished PCB inner copper thickness17-343um(10oz)Customized copper thickness
                      Minimum aperture0.15mm(6mil)0.15mm is the minimum aperture of drilling, 6.3mm is the maximum aperture of drilling, if larger than the 6.3mm plant to be dealt with separately.
                      Surface treatmentTin spray, ENIG, Immerse Au, immersion silver, immersion tin, osp, gold osp, electrospray tinAccording to customized requirements
                      Aperture tolerance(machine drill)±0.08mmThe tolerance of drilling is ±0.08mm. For example, if the hole is designed as 0.6mm, the finished aperture of the physical plate is acceptable at 0.52--0.68mm.
                      SolderPhotosensitive inkPhotosensitive ink is now the most used type, thermal solid oil is generally used in low-grade single-sided paperboard
                      Minimum width of the character≥0.15mmThe minimum width of a character, if less than 0.15 mm, the physical panel may cause character ambiguity due to design reasons
                      Minimum character height≥0.8mmThe minimum height of a character, if less than 0.8 mm, the physical panel may cause character ambiguity due to design reasons
                      Character aspect ratio1:05The most suitable ratio of width to height is more favorable for production
                      Spacing between lines and shapes≥0.3mm (12mil)For routing PCB, the distance from the line layer to the shape line of the board is not less than 0.3 mm, and the distance from the line to the center line of v cutting is not less than 0.4mm.
                      Panelization: clearance gap0 clearancePanelization, no gap between pcb's
                      Panelization: with clearance1.6mmThe gap should not be less than 1.6mm with clearance, otherwise it will be more difficult to cut the edge.
                      Pads factory copper spreading methodHatch copper coating
                      Pads software slot drawingUse Drill Drawing layerIf there are more non-metallized grooves on the board, please draw on the drill drawing layer
                      Protel/dxp software window layerSolder layerDo not put on paste layer
                      Protel/dxp contour layerUse Keepout Layer or mechanical layerPlease note: only one contour layer is allowed to exist in a file, and no two contour layers are allowed to exist at the same time. Please delete the unused contour layer, that is, the keepout layer or the mechanical layer can only be chosen when drawing the shape
                      Half hole process minimum half hole aperture0.6mmHalf-hole process is a special process with a minimum aperture of not less than 0.6mm
                      solder bridge0.1mm
                      protel/dxp filegerberfile fileProcessing is based on exported gerber files
                      Minimum pad0.2mm(8mil)

                      Impedance control+/-10%

                      Contour machining accuracy+/-0.10mm(4mil)


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