PCB News - How to choose color for Shanghai circuit board proofing

How to choose color for Shanghai circuit board proofing
The circuit board is a necessary part of electronic devices, and the so-called "circuit board proofing" is the process of designing the circuit of a certain product and completing the layout, and then looking for a small factory to conduct a small batch trial production of the circuit board. Proofing is usually in small batches, after all, it is a trial production, which has certain risks. So, how to choose the color when Shanghai PCB proofing?

PCB board
One, common PCB proofing colors

At present, the five colors used by Shanghai circuit board proofing manufacturers on the market are red, green, blue, yellow, and black, which are more commonly used. However, according to the survey, green is used for the background color proofing in the majority. Why is this? ? The reasons are as follows:

1. In the past, the production process of circuit board proofing was relatively backward, so in terms of quality inspection, many of them were inspected by the naked eyes of workers, especially the line quality inspection of circuit boards. Although the technology has improved and there are more flying probe testing techniques, some procedures still cannot be separated from the naked eye of the workers. Using green as the proofing color of the circuit board can protect the eyes of workers. After all, staring at the board for a long time under strong light is a very tiring process!

Circuit board

2. PCB proofing has an SMT process, in which the components are soldered, solder paste is applied first, then the patch, and finally the AOI calibration lamp is passed. The process of soldering components is always used to calibrate the optical positioning with professional instruments. The use of a green background color is helpful for instrument calibration.

3. In the process of circuit board proofing and plate making, there are several processes to go through the yellow light room, and the color rendering effect of green in the yellow light room is also good.

4. Among several commonly used circuit board proofing colors, if black and yellow are used, toxic gases are likely to be generated after the circuit board is energized, because the black and blue background colors are mixed with carbon, cobalt and other elements, and they can conduct electricity., So it is easy to short circuit when power is on, and it is not suitable for use in high temperature environment.

5. Green ink is cheap and low in cost, saves money and is convenient for production and processing, and is safe and harmless. Of course, it has become the first choice for proofing and color selection.

PCB board

2. How to choose a Shanghai circuit board proofing manufacturer?

Many people like to find a small factory for circuit board proofing. After all, it is a small batch of proofing. It seems that there is no need to find a qualified manufacturer? But in the final analysis, what you pay for is what you pay for. If you don't want to have various problems such as "less punching a few holes" in circuit board proofing, you still have to choose professional and reliable Shanghai circuit board proofing.
In short, green is currently the widely used PCB proofing background color on the market, and circuit board proofing uses green as the background color, which is a solution widely adopted by most of the Shanghai circuit board proofing manufacturers currently on the market. Pay attention to product innovation in terms of energy saving and emission reduction. PCB factoriesmust learn to attach importance to Internet technology and realize the practical application of automated monitoring and intelligent management in production through the integration of overall industry knowledge.