PCB Assembly Suitable For Electronic Products

PCB Assembly Suitable For Electronic Products

Due to the large number of components, the wide variety and the short life cycle of electronic products, the PCB Assembly Suitable For Electronic Products has brought great challenges to production operation scheduling. Multi-variety, small batch and variable batch have become the mainstream production mode of electronic manufacturing.

Product Details

PCB Assembly Suitable For Electronic Products


Description:


Due to the large number of components, the wide variety and the short life cycle of electronic products, the PCB Assembly Suitable For Electronic Products has brought great challenges to production operation scheduling. Multi-variety, small batch and variable batch have become the mainstream production mode of electronic manufacturing. In this mode, the switching time between multiple varieties occupies a larger and larger proportion in the entire assembly time.


pcb


Specification:

AticleDescriptionCapability
MaterialLaminate materialFR4, Alu, CEM3,Taconic,Rogers
Board cuttingNumber of layers1-58

Min.Thickness for inner layers 

(Cu thickness are excluded)

0.003"(0.07mm)
Board thicknessStandard0.04-0.16''±10%(0.1-4mm±10%)
MinSingle/Double layer:0.008±0.004''
Bow and twist<7/1000
Copper weightouter Cu weight 0.5-4 oz
inner Cu weight 0.5-3 oz
Drilling
Min size0.0078''(0.2mm)
Drill deviation±0.002''(0.05mm)
PTH hole tolerance±0.002''(0.005mm)
NPTH Hole tolerance±0.002''(0.005mm)
PlatingMin hole size
0.0008''(0.02mm)
Aspect ratio20(5 :1)
Solder maskColorGreen,white,black,red,yellow,blue
Min solder mask clearance0.003''(0.07mm)
Thickness0.0005-0.0007''(0.012-0.017mm)
SilkscreenColor Green,white,black,red,blue....
Min size0.006''(0.15mm)
E-testFlying probe testerY
Controlled Impedance
Tolerance±10%
Impedance testerTektronix TDS8200
Surface finishHASL,ENIG,immersion silver,immersion tin, OSP....

matters need attention :
To increase the lifetime of solder joints, the method of solder paste pre-overlaying on PCB solder pads is proposed. Meantime, process parameters are controlled to ensure the assembly quality. 


PCB circuit board



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