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JLCPCB will continue production during the Lunar New Year holiday. Certain special specs will be processed after the holiday. Pls check our schedule>


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PCB Specifications
Features
Capability
Description
Patterns
Layer count
1-32 Layers
The number of copper layers in the PCB
Controlled Impedance
4/6/8/10/12/14/16/18/20/.../32 layers
Material
FR-4
Grade A laminates from suppliers including Nan Ya, KB, Shengyi and etc.
PCB Capability - Material
Aluminum-Core
PCB Capability - Material
Copper-Core
PCB Capability - Material
RF PCB
PCB Capability - Material
FR-4 Dielectric Constants
4.5 (2-Layer PCB)

7628 Prepreg 4.4

3313 Perpreg 4.1

2116 Perpreg 4.16

Maximum Dimensions

FR4 PCB: 670 × 600 mm

Rogers / PTFE Teflon PCB: 590 × 438 mm

Aluminum PCB: 602 × 506 mm

Copper PCB: 480 × 286 mm

These limits apply to PCBs with thickness ≥ 0.8 mm. The thinner FR4 PCBs are 500 × 600 mm maximum.

2-layer FR4 PCBs can reach a maximum size of 1020 × 600 mm.

PCB Capability - Maximum Dimensions
Minimum Dimensions
Regular: 3 × 3 mm. Castellated / Plated Edges: 10 × 10 mm.
These limits apply to PCBs with thickness ≥ 0.6 mm. Manual review required for thinner PCBs. Panelization is recommended for small-sized boards.
Dimension Tolerance
±0.1mm
±0.1mm(Precision) and ±0.2mm(Regular) for CNC routing, and ±0.4mm for V-scoring
Thickness
0.4 - 4.5 mm
Thickness for FR4 are: 0.4/0.6/0.8/1.0/1.2/1.6/2.0 mm (2.5 mm and above are for 12+ layer PCBs only)
PCB Capability - Thickness

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

(Thickness<1.0mm)

± 0.1mm
e.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 Copper
1 oz / 2 oz (35um / 70um)
Finished copper weight of outer layer is 1oz or 2oz.
PCB Capability - Finished Outer Layer Copper
Finished Inner Layer Copper
0.5 oz / 1 oz / 2 oz (17.5um / 35um / 70um)
Finished copper weight of inner layer is 0.5oz by default.
PCB Capability - Finished Inner Layer Copper
Soldermask
Green, Purple, Red, Yellow, Blue, White, and Black.
We use LPI (Liquid Photo Imageable) solder mask. This is the most common type of mask used today. Heat-cured ink soldermask is usually found on low-cost, single-sided PCBs.
Surface Finish
HASL (leaded / lead-free), ENIG, OSP (copper core boards only)

FR4 has all three finishes available, 6+ layers and RF boards only have ENIG.

Aluminium core boards only have HASL. Copper core boards only have OSP.

Drilling
Traces
Soldermask
Legend
Outline
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