The basic solidification imperfections will affect the holes in the drilling process of the PCB. Although it seems to be a small problem, it will eventually increase the difficulty of the assembly of the PCB, and the quality may also be greatly discounted. So it is very important to improve the basic curing degree!
Printed circuit board uses a variety of types of ink, which have many properties; the important is ink viscosity, thixotropy and fineness. These physical properties need to be known to improve the ability to use ink.
In the manufacturing process of printed circuit boards, screen printing is one of the most important processes. In order to obtain the fidelity of image reproduction, ink must have good viscosity and suitable thixotropy. Viscosity is the internal friction of a liquid, which means the friction force exerted by the inner layer of liquid, which makes one layer of liquid slide on the other layer of liquid under the action of external force. The mechanical resistance of the inner layer of the thick liquid is larger than that of the thin liquid. The unit of measurement of viscosity is berth. In particular, it should be noted that the temperature has a significant effect on viscosity.(pcb quote)
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