4-layer Printed Circuit Board / 4-layer pcb 1.20 years experance 2.Provide OEM PCB 3.UL; ISO accept 4.Vacuum package Description of our 4-layer Printed Circuit Board / 4-layer pcb : 

1) Min. Trace width: 0.20mm 2) Min. Space between trace: 0.20mm 3) Min. Hole size: 0.5mm4) Thickness tolerance: A) Single sided: 0.005" B) Double sided: 0.010" 5) Base materials: Polyimide and polyester 6) Conductor (copper thickness): 0.5oz., 1oz. And 2oz. (RA and ED copper) 7) Cover-layer: Polyimide and polyester (solder mask printing is available) 8) Adhesive material: Epoxy, acrylic and polyester 9) Stiffener materials: FR-4, mylar and polyimide 10) Surface finishes: Flash gold plating, selective gold plating and solder plating Package:  Vacuum package  

>>  Provide OEM PCB,PCBA assembly or copy >>  Certificate:UL ,ISO9001:2000, ISO14001

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>>  Specializing in Double Side PCB, Multi-Layer PCB, F4BK PCB, Ceramic PCB,  Rogers PCB,

Aluminum PCB. Meanwhile We supply all kinds of flex PCB, Rigid flex PCB and Printed Circuit Board PCB Assembly

Quality Control & vacuum package :