advanced pcb manufacturing

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A brief discussion on EMI solutions in multi-layer PCB design
ByGrace January 16, 2025January 15, 2025
There are many ways to solve the EMI problem. Modern EMI suppression methods include: using EMI suppression coatings, selecting appropriate EMI suppression components and EMI simulation design, etc. This article starts with the most basic PCB layout and discusses the role and design techniques of PCB layering and stacking in controlling EMI radiation. Power bus…
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Design experience: Grounding methods in multi-layer PCBs
ByGrace January 16, 2025January 15, 2025
According to the rule of thumb, four-layer boards are usually used in high-density and high-frequency situations, which are more than 20 DB better than two-layer boards in terms of EMC. Under the condition of a four-layer board, a complete ground plane and a complete power plane can often be used. Under this condition, it is…
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Top 10 Tips to Improve IP Verification Efficiency
ByGrace January 16, 2025January 15, 2025
Functional verification is becoming a bottleneck in IP verification and affects the entire design team. Design engineers seek ways to improve verification efficiency to achieve the best benefits for the entire chip design. Here, we provide 10 simple tips to significantly improve your IP verification efficiency. 1.Participate in verification plan review Well begun is half…
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How to deal with electromagnetic interference problems on PCB boards
ByGrace January 16, 2025January 15, 2025
Some people say that there are only two types of electronic engineers in the world: those who have experienced electromagnetic interference and those who have not. With the increase in the speed of PCB routing, electromagnetic compatibility design is an issue that we electronic engineers have to consider. When facing a design, when conducting an…
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Analysis of the key points of PCB design
ByGrace January 16, 2025January 15, 2025
In today’s society, a large number of electronic products are widely used in our daily work and life, so their reliability needs to be guaranteed, and most electronic systems and equipment that use printed circuit boards must have reasonable design schematics and correct printed circuit boards to fundamentally improve their reliability. For example: assuming that…
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Summarizing the experience of printed circuit board design
ByGrace January 16, 2025January 15, 2025
As an electronic engineer, printed circuit boards are a must-have for electronic engineers to do electronic design. I believe that everyone has encountered some confusion and problems in electronic design at work. Here I summarize some design methods in the process of printed circuit boards, hoping to give you answers. 1.The size of printed circuit…
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High-speed FPGA-based PCB design technology
ByGrace January 16, 2025January 15, 2025
It would be wonderful if high-speed PCB design could be as simple as connecting schematic nodes and as beautiful as what you see on a computer monitor. However, unless the designer is new to PCB design or is extremely lucky, actual PCB design is usually not as easy as the circuit design they are engaged…
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PCB circuit board design experience summary
ByGrace January 15, 2025January 14, 2025
As an electronic engineer, circuit design is a necessary hard work, but no matter how perfect the principle design is, if the circuit board design is unreasonable, the performance will be greatly reduced, and in serious cases, it may not work properly. Based on my experience, I have summarized the following points that should be…
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Design basis of printed circuit boards
ByGrace January 15, 2025January 13, 2025
Design basis of printed circuit boards The circuit design ideas of electronic designers must eventually be implemented in reality, that is, printed circuit boards. The substrate and selection of printed circuit boards, the physical properties of the various elements that make up the circuit, such as vias, slots, wire sizes, pads, surface coatings, etc., are…
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Ten standards for RF PCB
ByGrace January 15, 2025January 14, 2025
1) In the design of low-power RF PCB, standard FR4 materials (good insulation properties, uniform material, dielectric constant ε=4, 10%) are mainly used. 4-layer to 6-layer boards are mainly used. In the case of very cost-sensitive, double-sided boards with a thickness of less than 1mm can be used. It is necessary to ensure that the…
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Overview of high-precision technology for printed circuit boards
ByGrace January 15, 2025January 14, 2025
High-precision printed circuits refer to the use of fine line width/spacing, micro-holes, narrow ring width (or no ring width) and buried and blind holes to achieve high density. High precision means “fine, small, narrow, thin”, which will inevitably lead to high precision requirements. Take line width as an example: 0.20mm line width, according to regulations,…
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Mounting equipment management
ByGrace January 15, 2025January 17, 2025
(1) Talking about efficiency must start with management Among SNIT equipment, the placement machine is recognized as the most complex equipment. With the rapid development of assembly technology, its complexity will continue to increase. At the same time, since the cost of the placement machine accounts for a considerable proportion of the entire SMT processing,…
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Advantages and disadvantages of the turret structure of the placement machine
ByGrace January 15, 2025January 14, 2025
(1) Advantages and disadvantages of the turret structure · Up to 6 nozzles of different sizes are suitable for any placement head on the turret, and there is no need to change the nozzle during work. In other words, any nozzle can pick up components at any time, eliminating excessive and unnecessary operating steps. ·…
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The precautions about the wiring of copper print pcb
ByGrace January 15, 2025January 14, 2025
Current density of wiring : Most electronic circuits are now made of copper-bonded insulating boards. The copper thickness of commonly used circuit boards is 35μm. The current density value of the wiring can be taken according to the empirical value of 1A/mm. The specific calculation can be referred to the textbook. In order to ensure…
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Research on electromagnetic compatibility of switching power supply PCB board
ByGrace January 15, 2025January 14, 2025
With the improvement of power semiconductor device performance and the innovation of switching conversion technology, power electronics technology has been widely used in various power supply equipment. At present, switching power supply products are becoming more and more small, high-speed and high-density. This trend has led to increasingly serious electromagnetic compatibility issues. The high-frequency switching…
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