source:Industry News release time:2021-09-13 Article author:sznbone Popular:pcb
As the operators of the Shenzhen PCB factory, we must be familiar with the operation and equipment use of the PCB factory. In the PCB factory, product quality is the key, but it is also very important to operate the machine well.
One. Attentions to the graphics transfer of the circuit board factory:
(1) After the film is coated to develop, the time is best not to exceed 48hr;
(2) Avoid humidity, and when the humidity is high, the film will be exposed and developed within 12hr as soon as possible after the coating is completed;
(3) The hardness of the coating film before development is only 1H, so you should be careful, especially when printing double-sided panels;
(4) Storage method, please store in a cool place, the storage period is within the time specified by the manufacturer;
(5) Although the film is more than 2H after development, you should still be careful when placing the board with the film being scratched, causing disconnection;
(6) Avoid direct sunlight and fluorescent lamps in the operating environment. The ideal environment is to operate under yellow light in a clean room, at a room temperature of 23~25°C;
(7) Since the liquid photoresist contains solvent, the ventilation of the work place should be better. When it is attached to the skin, it can be cleaned with moon bar soap;
(8) The stripping time depends on the temperature increase or decrease. The increase of NaOH concentration has a limited effect on the stripping time. The ideal concentration is 4%-7%. (It is best to use an automatic film removal machine)
module binding Immersion gold circuit board
I often hear everyone talking about laser imaging. What are the precautions for laser imaging?
2. The characteristics of the LDI laser imaging equipment of the circuit board factory are:
A. The processing efficiency is low, and it is not suitable for mass plate production;
B. Fast processing cycle, suitable for rapid production of sample plates or small batch plates;
C. Improve alignment accuracy, data can be corrected to adapt to changes in substrate size;
D. There is no need for a photographic plate, which avoids the influence of the expansion and contraction of the photographic plate on the dimensional accuracy of the figure during exposure, and also saves the cost of the photographic plate.
The above are some precautions for the production process of the circuit board factory, have you mastered it?
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