At present, countries all over the world have put forward requirements for printed circuit boards and their lead-free assembly. Why are there no lead components on the printed board, as well as in the assembly process and products? There are two reasons for this: First, lead is toxic and affects the environment; second, lead-containing solder is not suitable for use and does not adapt to novel assembly techniques.
Lead is a toxic substance, and the body absorbs excessive lead, which can cause poisoning. Ingestion of low doses of lead may also adversely affect human intelligence, the nervous system and the reproductive system. The use of tin-lead solder coating on the surface of the PCB can cause hazards.
Lead is exposed to the process. The process of contacting lead includes a tin-lead plating process for pattern plating in a tin-lead layer, a tin-lead removal process after corrosion, a hot-air leveling solder (spraying tin) process, and a hot-melt soldering process. Although there are exhaustive measures such as exhaust ventilation in the production, long-term contact will inevitably suffer.（pcb electronics）
Process of pcb manufacturing:
Max layers number:
Min line width/gap:
Min hole size for mechanical drill:
Min hole size for laser drill:
Min annular ring:
Max copper thickness:
Max size for single and double layers PCBs:
600 x 1200mm
Max size for multi-layers PCBs:
500 x 1200mm
Board thickness for 2 layers:
Board thickness for multi-layers:
Min solder mask bridge:
Plugging vias capability:
Impedance Control Tolerance:
±10%(±5% for PCB Prototypes)
Thickness tolerance for PTH:
Thickness tolerance for NPTH:
Solder mask color:
White, black, blue, green, yellow, red and so on
OSP(Entek), HASL no lead free, HASLLead Free,ENIG(Immersion Gold), Immersion Tin, Immersion Silver, Hard Gold, Platting Gold, Gold Finger, Enepig.
30000 square meters/month
Normal board materials:
ROGERS, ARLON,TACONIC,NELCO,ISOLA, HighTG:S1000-2.IT180
Our Company is UL,ISO9001,ROHS and GJB9001B certified.
Packing and Shipping:
1. How to Get a quotation?
For PCBs,pls send us the Gerber File.For PCBA,pls send us the Gerber file and BOM(Bill of Materials)
2. What is the MOQ?
No MOQ.1 pcs is ok.
3.What is the lead time?
For PCB orders,the lead time is 2 to 10 days.For PCBA orders,the lead time will be 15 to 30 days.
4.Will the boards be tested before shippment?
Yes,all PCBs will be tested by Flying Probe or E-test.For PCBA,we will have AOI,X-ray,and functional test