On the PCB circuit board, there are different silk screen characters. Some silk screen characters have green and red oil, while others only have green oil. This marks the blue oil on the PCB board, while others only have green oil. There should be no gaps in the drawing lines, and it is destined to use a silver layer because the shape and color of the font greatly affect the aesthetics of screen printed characters.
A 10MM high brightness LED should be used as an indicator light on the circuit board to prevent it from being damaged by someone touching it.
After the wiring is completed, all wires should be used well before drawing the traces on it. It is not allowed to draw black, let alone directly draw areas that are not bright.

What chips in the power supply circuit of the PCB circuit board are bad and difficult to ship? To measure the level and price of the SMT factory, there is a passing rate of verification. Different brands of SMT machines have different prices.
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From basic skills to high skills, they can acquire a complete set of language expression ability, without O/C design or inconsistent structure, and can skillfully carry out language analysis, language control, and make preliminary project plans.
What are the advantages of SMT chip processing in Hong Kong? SMT chip processing helps you understand how to choose SMT chip processing suppliers. The SMT chip processing has good purchasing resistance, which can greatly save production costs and meet new standards. During SMT chip placement processing, the SMT processing method can be adopted, which can increase the durability of the circuit, improve the stability of the circuit, and also reduce production costs. The equipment for SMT processing is basically processed by SMT chip manufacturers and then transmitted to subsequent circuit assembly equipment. The circuit assembly process can be roughly divided into three or four lines. 3、 Five wire refers to the circuit where electronic components are installed on a circuit board. Electronic components are processed by several plugins, and the entire production of PCBA can only be considered completed after the processing of the final one or five wire plugins. This process flow is used for SMT chip mounting to mount components in the form of corner materials. The SMT chip mounting process involves first attaching the PCB of the component, and then removing the component. It is not just a matter of mounting, but there are also many electronic product processing processes, but there will inevitably be some differences between them. So some people may ask, why does the cost of SMT chip processing far exceed the cost of chip processing?
The tool for SMD processing has been in use for 16 years, and as a last resort, we are unwilling to process incoming materials that only see one side, so the price of SMD processing may not be low.