How to consider safe spacing in PCB design?
Here, it is temporarily classified into two categories: one is electrical related safety spacing, one is non-electrical related safety spacing.
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PCB design and analysis of non-isolated IC controller system
Our electronic products are often more than 60% - reliability problems are in the PCB design of the electronic circuit board; Relevant theoretical and practical experience is required for working and performing PCBS;
What should we pay attention to when making HDI board?
The most effective way to improve the density of PCB circuit board is to reduce the number of through holes, and precisely set blind holes, buried holes to achieve this requirement, and thus produced the HDI buried blind hole plate.
Technical analysis: Ten golden principles of PCB design
For circuits with large redundancy of power pins, the number of matched capacitors can also be calculated according to the number of output pins, and every 5 outputs is matched with a 100nf filter capacitor.
Cause analysis and solution of PCB inner short circuit
In the manufacture of high density packaging structure such as BGA for PCB raw materials technical requirements, special analysis should be carried out carefully, the selection of substrate and copper foil thermal expansion coefficient basically to match.
The production method of the key process of embedded copper printed circuit board
Embedded copper printed circuit board has the characteristics of high thermal conductivity, high heat dissipation and saving board space, which can effectively solve the heat dissipation problem of high-power electronic components.
Common bad problems and solutions in PCB processing
The small circuit material on the surface of PCB board is copper foil. Originally, copper foil is covered on the whole board, but in the manufacturing process, the middle part is etched away, and the remaining part becomes a network of small lines.
The installation of decoupling capacitor and PCB design
In the typical radiation case of EMC testing and rectification, common-mode voltage parasitic between analog circuit and digital circuit is the main reason for the formation of common-mode radiation.
What are the precision requirements of PCB manufacturing process?
If the design rules do not meet the requirements of PCB manufacturing process, it will not only affect the function of the product so simple, even can not process can not realize the design intention of the engineer.
Why does the step area on the board after welding bubble in PCB design?
thanks to a deep control area and copper plating on the board, produced a bizarre scene during welding, where the board bubbled in layers. Is the processing of the design, or ignoring the welding process, please see today's case analysis.
The cause of electroplate cavity in circuit board and how to prevent it
For any printed circuit board design with two or more circuit layers, electroplated through-holes form an electrical interconnection between the different layers.
PCB design: visual signal eye map, attenuation know well
High-speed public number are engaged in high-speed PCB design (Layout) of the small partner, signal processing theory may not help these friends in their daily work is not too much, these friends may pay more attention to the topic related to wiring.
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