Reglas de Diseño

PCB Specifications



Layer count1,2  layersThe number of copper layers in the board
MaterialFR-4FR-4 Standard Tg 130-140/ Tg 155
Dielectric constant4.5(double-sided PCB)

7628 Prepreg 4.6

3313 Prepreg 4.05

2116 Prepreg 4.25

Max. Dimension300x400mmThe maximum dimension
Dimension Tolerance±0.2mm±0.2mm for CNC routing, and ±0.4mm for V-scoring
Board Thickness1.6 mmThe thickness of finished board.

Thickness Tolerance

( Thickness≥1.0mm)

± 10%e.g. For the 1.6mm board thickness, the finished board thickness ranges from 1.44mm(T-1.6×10%) to 1.76mm(T+1.6×10%)

Thickness Tolerance


± 0.1mme.g. For the 0.8mm board thickness, the finished board thickness ranges from 0.7mm(T-0.1) to 0.9mm(T+0.1).
Finished Outer Layer Copper1 oz/2 oz (35um/70um)Finished copper weight of outer layer is 1oz or 2oz.
Finished Inner Layer Copper0.5 oz (17.5um)

Finished copper weight of inner layer is 0.5oz by default.

2 oz inner copper weight is available for 4-layer PCBs with 1.6mm thickness/JLC3313 stackup/2oz outer copper weight.

Drill/Hole Size