Finish product

Max layer count

20 layers

1-20 layers

Surface treatment

HASL, HASL lead free, ENIG, Immersion Ag, Immersion Tin, OSP, Golden finger, Gold plating, Selective ENIG，ENEPIG

Thickness

0.4--3.5mm (Rigid board)

0.06~0.4mm (Flexible board)

Regular PCB thickness we produce: 0.4/0.6/0.8/1.0/1.2/1.6/2.0 mm, max 3.5mm for rigid board

Tolerance (T≥1.0mm)

± 10%

e.g. T=1.6mm, Final thickness is 1.44mm(T-1.6×10%)~1.76mm(T+1.6×10%)

Tolerance (T＜1.0mm)

±0.1mm

e.g. T=0.8mm, Final thickness is 0.7mm(T-0.1)~0.9mm(T+0.1)

Laminate type

FR4, CEM1, CEM3, MCPCB, FPCB

Circuit design

Min track and spacing

≥3/3mil(0.076mm)

4/4mil( copper 1 oz)，5/5mil(copper 2 oz)，8/8mil(copper 3 oz)

Min network track and spacing

≥6mil/8mil(0.15/0.20mm)

6/8mil(copper 1 oz)，8/10mil(copper 2 oz )，10/12mil(copper 3 oz)

Min etching legend

≥8mil(0.20mm)

8mil(copper 1 OZ)，10mil(copper 2 OZ)，12mil(copper 3 OZ)

Min BGA，Bolding pad

≥6mil(0.15mm)

Outer layer copper

35--175um

Inner layer copper

17-70um

Spacing between track and outline

≥10mil(0.25mm)

CNC routing type not less than 0.25mm；V groove type not less than0.35mm

Copper bridge

4mil

Drilling

Min diameter of half hole process

0.5mm

Half-hole is a special process, the diameter should be not less than 0.5mm

Min hole(drilling machine)

0.2mm

Min 0.2mm, tolerance ±0.075mm

Min slot(drilling machine)

0.6mm

Tolerance±0.1mm

Min hole(Laser)

0.1mm

Tolerance ±0.01mm

Min hole

≥0.2mm

Diameter ≥0.2mm，Spacing ≥0.25mm

Stamp holes

0.5mm

Min diameter 0.25mm, min quantity ≥3pcs

Plug holes

≤0.6mm

Cover oil

Via holes

4mil

Via holes min 4mil, component holes min 6mil

Solermask

Type

LPI

White, black, blue, green, yellow, red

Solarmask bridge

Green≥0.1mm

Others≥0.12mm

White/black≥0.15mm

Spacing between pads should be larger than 0.18mm, the heavier copper is, the larger spacing should be.

Legend

Min width

≥0.6mm

Min height

≥0.8mm

Min line width

≥0.1mm

Spacing between solarmask and SMT square

≥0.2mm

Ratio of width and height

1:0.5

Profile

Min slot knife

0.60mm

Max delivery size

550mm x 560mm (multi-layer)

1500mm x 550mm (single/double layer)

V-CUT

V-CUT Length ≥55mm

V-CUT Width ≤380mm

1.V-CUT length refer to V-CUT start to end

2.V-CUT width refer V-CUT vertical single pcb width

Panel array

Min spacing for Vcut

0mm

Common pcb panel

Min spacing for CNC routing

1.6mm

Half-hole pcbs

1. Single or double layer pcb uses Vcut or stamp holes

2. 3 or 4 layers pcbs use connection bridge on 4 angles

Process

Peel strength

≥2.0N/cm

Flamability

94V-0

Impedance type

Single ended controllable：45~85ohm , differential impedance：85~110 ohm

Special process

resin plug-hole, Holes in pad, mixed board laminate, PTFE, Blind & buried holes, Bolding IC