In addition, some used double sided PCB boards need to be repaired and reprocessed. In most cases, it is necessary to remove the existing components and replace a new component, which is usually done manually. For boards with through holes, repairs can be done by simple tools such as soldering iron and capillary knitting. For SMD, on the other hand, a special reprocessing table is required, which relies on hot air reflow soldering equipment. A large number of chemicals need to be used in the repair process, especially in cleaning, moisture removal, flux removal, lubricant wiping, and freezing spray to locate heat-sensitive components, and so on.
Tin spraying is one of the most commonly technology in PCB board. This process is practical. It has good welding performance, good oxidation resistance, and it is a process with high performance and price ratio. There are also lead and lead free distinctions between tin sprayed PCB boards.
No lead free is made of tin in a certain proportion. Lead improves the activity of tin during welding. No lead free is easier to use than lead free. However, lead is toxic, and lead is harmful to human health. Therefore, lead tin is not environmentally friendly, and the world has a certain difference in environmental protection. Therefore, lead-free tin spray was born. (fr4 pcb)
Process of pcb manufacturing:
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
Email us to get a quote: email@example.com