Urgent customer's urgency, think what customers want,
Take the quality as the root, service for this
 Order Hotline： |
| 0755-85298917-606 |
Urgent customer's urgency, think what customers want,
Take the quality as the root, service for this
| Order Hotline： |
| 0755-85298917-606 |
Shenzhen wanchuangxing electronics co. LTD
Contact number:
0755-85298917-606（Sales department）
0755-85298917-602（The Marketing Department）
0755-66802023（Market line）
fax：0755-85298017
e-mail：szwcxpcb@163.com
24H Service telephone：
18028766818（Mr. Wu）
15999646351（Ms. Wu）
URL：Http://www.wcxpcb.com
address：Building 5, fuyong tong tailli industrial park, baoan district, shenzhen
What is the meaning of the hole in the PCB board?
Circuit board industry in a lot of processes have a window that is only a professional term in this industry.
include:
Line window: that is, the production line layer, the positive film on the window is the need to retain the part.
If it is negative film on the window is the need to remove the part.
Anti-welding window: the way the window with the film, the need to weld or heat to the PAD exposed to the green layer, in order to achieve customer needs.
As well as the text of the window and the like.
Simply said the meaning of the window is to put this piece of copper etching out, had a whole piece of copper, the middle of a region without copper,
It is equivalent to a window in the copper layer
wangwang
