4 layer pcb manufacturers CHINA , immersion gold

详情

Specifications:

• Layers count: 4
• Finishing thickness: 1.**5 ±0.**7mm
• Minimum width/spacing: 0.1/0.1mm
• Minimum via diameter: 0.2mm
• Surface finishing: ENIG
• Specialty filled with copper paste

• No any MOQ
• Reasonable (factory) price
• FR4 or aluminum material
• Provide OEM service
• PCB factory not trade company
• All engineers are over *5 years PCB producing experience
• SGS, CQC, RoHS, UL, TS****9 marks
• Special produce all kinds of ***4 layers PCB boards

• Visual inspection 
• Flying probe 
• Impedance control 
• Solderability detection 
• Digital metallographic microscope 
• AOI (automated optical inspection) 

• Quantity 
• Base material 
• Board thickness 
• Copper thickness 
• Surface treatment 
• Gerber files (engineering files) 
• Color of solder mask and silkscreen 

• PCB production time 
• Multi-layer PCB-sample: **6 days/mass production: within *2 days 
• Double-sided PCB-sample: **5 days/mass production: within 8 days 

• By DHL, UPS, FedEx, TNT using clients' account
• We suggest you using our DHL, UPS, FedEx, TNT forwarder
• By EMS (usually for Russia clients), price is high
• By sea for mass quantity according to customers' requirement
• By customers' forwarder