Professional fr4 double sided pcb printed circuit boards 1 OZ , Solder Mask Mat Green   Specifications Professional and high quality fr4 double sided pcb
1.Customized design
2.Base:FR4
3.Lead free time

Professional and high quality fr4 double sided pcb

Brief introdution of our company

Shenzhen WonDa Technology Co., Ltd. is a professional pcb manufacturer ,our products include blank pcb, single sided pcb,double sided pcb,multilayer pcb,flexible pcb,fr4 pcb,fr2 pcb,fr1 pcb,cem1 pcb,cem3 pcb,aluminum pcb,etc.

General Specifications Capability

Article	Description	Capability
Size	Max.Finshed Size	20.9”x24.4”(530mm x 620mm )
Board Thickness	Standard	0.004”to0.16 ” ±10% ( 0.1mmto4.0mm±10% )
Min.	Single/ Double-sided:0.008”±0.004”(0.2mm ±0.1mm)
4-layer:0.01”±0.008”(0.4mm ±0.1mm)
8-layer :0.01”±0.008”(0.4mm ±0.1mm)
Bow and twist	< 7/1000
Copper  Weight	Outer Cu weight	0.5oz ~ 3.0oz
Inner Cu wight	0.5oz ~ 3.0oz
Laminate Materials	FR-4,FR-1,,FR-2,CEM-1,CEM-3
Board Cutting	Max. number of layers	8
Min. thickness for inner layers (Cu thickness are excluded)	0.003”(0.07mm)
Drilling	Min. Size	0.0078”(0.2mm)
Max. Size	0.3”(8.0mm)
Drill Deviation	± 0.002” (0.050mm)
PTH hole tolerance	± 0.002” (0.050mm)
NPTH hole tolerance	± 0.002” (0.050mm)
Plating	Min. hole size	0.0008” (0.02mm)
Aspect ratio	20(5:1)
Solder Mask	Color	green,light green,white,black,dark brown,yellow,red,blue
Min. solder mask clearance	0.003”(0.07mm)
Thickness	0.0005”-0.0007”(0.012mm-0.017mm)
Silkscreen	Color	White,black,yellow,red,blue,green
Min. Size	0.006” (0.15mm)
Electrical testing	Flying Probe Tester	Y
Controlled Impedance	Tolerance	±0.5%
Impedance tester	Tektronix TDS8200
Routing	End Mills Test	± 0.006”(0.15mm)
CNC Tolerance	± 0.004”(0.1mm)
V-Cut Depth( residual thickness )	FR-4(1/3+-0.1mm);FR-1,FR-2,CEM-1,CEM-3(1/2+-0.1mm)
V-cut angle	15°,18°,30°
V-cut Shape	line,hole,V-shape
Surface Finish	HASL,HASL pb free,immersion gold,immersion silver,immersion tin,O.S.P (Entek),S/G plating,ENEPIG,G/F plating,carbon…
Gold Finger angle	15° 30° 45° 60°
Others	UL Cert.	Y
ISO Cert.	ISO9001
TS16949	Y
ISO14000	Y

Testing Items

1.100% Electrical Test

2.100% Visual Inspection (including warp & twist check)

3.Dimensional Inspection (finished hole sizes, pcb profiles, etc)

4.Microsection

5.Solderability Test (