Layers
2-32 layer PCBs
Number of PCB layers as defined in the design file.
Material Types
FR-4, high-Tg FR-4, aluminum substrates
FR-4 (standard, high-Tg, halogen-free) / aluminum substrates (insulated metal base).
Solder Mask
Taiyo / Guanghua / Rongda
Solder mask quality directly affects PCB durability and final product performance.
Max Size
680 x 1200 mm
Max production size: double-sided PCB 680 x 1200 mm; 4- and 6-layer PCB 680 x 640 mm.
Board Thickness Range
0.4 - 2.0 mm
Standard PCB thickness options: 0.4 / 0.6 / 0.8 / 1.0 / 1.2 /1.6 / 2.0 - 3.0 mm.
Outline Accuracy
±0.15 mm
CNC routing tolerance ±0.15 mm; V-cut outline tolerance ±0.15 mm.
Thickness Tolerance (≥1.0 mm)
±10%
Influenced by production factors (plating, solder mask, surface finish), typically positive tolerance.
Thickness Tolerance (<1.0 mm)
±0.1mm
Influenced by production factors (plating, solder mask, surface finish), typically positive tolerance.
Min Trace/Space
4 mil trace / 4 mil spacing (0.1 mm)
Min line width and spacing 4 mil; best ≥ 4 mil.
Min Hole Size
0.2 mm
Min drill hole size 0.2 mm; recommended ≥ 0.2 mm.
Min Annular Ring
4 mil (0.1 mm)
Min annular ring 4 mil; best ≥ 4 mil.
Finished Copper Thickness
35 µm / 70 µm / 105 µm (1 oz / 2 oz / 3 oz)
Thickness of copper foil after plating. Options: 1-3 oz.
Finished Hole Size (PTH)
0.25-6.5mm
Plated through-holes are smaller than drill size due to copper plating.
Hole Tolerance (Drill)
±0.075 mm
Example: For a 0.6 mm drill, finished hole size may be 0.525-0.675 mm.
Solder Mask Colors
Green / Red / Blue / Black/ White / Purple...
Multiple solder mask color options available.
Min Silkscreen Line Width
≥0.15 mm
If less than 0.15 mm, text may appear blurred or unclear.
Min Silkscreen Text Height
≥0.8 mm
If less than 0.8 mm, text may appear broken or incomplete.
Sillkscreen Aspect Ratio
1:5
Proper aspect ratio ensures better manufacturability.
Clearance Between Trace and Outline
≥0.3 mm (12 mil)
For PCBasic production, the distance between trace and board outline should be ≥0.3 mm; for V-Cut panels, the distance from trace to V-Cut centerline should be ≥0.4 mm.
Panelization - No-Gap Panel
0 mm gap
For delivery panels, spacing between neighboring boards can be 0 (must be defined in the file).
Panelization - With Gap
1.6 mm
For panels with gaps, spacing should be ≥1.6 mm, otherwise edge milling is difficult.
PCB Outline Edge Milling
0.3 mm - 0.5 mm
Standard edgemilling tolerance is 0.5 mm; special requirements must be specified in advance.
Copper Thieving Method by Fabricators
Copper thieving / mesh
Fabricators may add copper thieving to reduce etching imbalance. Customers designing solder pads must consider this.
Defining Slots in CAD Software
Drill drawing layer
If the PCB contains many plated or non-plated slots, please define them in the Drill Drawing layer.
Window Layers in Protel/DXP Software
Solder mask layer
Avoid errors by defining solder mask openings in the solder mask layer, not in the paste layer.
