What are the quality factors affecting PCB circuit board?
in fact, repair maintenance cost greatly increased at the same time, customer brand affected, It doesn't pay off in the long run.
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Teach you how to test PCB circuit board is qualified
Electrical testing is a very important link in the PCB board manufacturing process, the purpose is to check whether the PCB board is open and short circuit problem, to ensure that the finished products in line with the customer's electrical performanc
The difference between the hole cover oil and the hole window
Reflect the problem, so that you can design engineers do a reference, improve the quality of design and reduce the occurrence of problems!
Electromagnetic compatibility in PCB design
When the field strength of electromagnetic field exceeds a certain limit and the operation time is long enough, it may endanger human health. It can also interfere with other electronic devices and communications. All of these need to be protected.
EMC problem What are the factors in PCB design?
Factors related to EMC issues in PCB design: 1. System design: 2. Structural impact: 3. Cable influence: 4. Component selection: 5. Related to SI/PI simulation: 6. Grounding, 7.PCB design relationship, 8. Software anti-jamming technology: 9. Shielding: 10
PCB high speed signal circuit design specification skills
A perfect PCB board not only needs to do the component selection and setting is reasonable, but also needs to have good signal conduction performance.
Detail the basic process of PCB design
The basic PCB design process is as follows: preliminary preparation →PCB structure design → mesh guide → rule setting →PCB layout → Wiring → routing optimization and silk screen → network and DRC inspection and structure inspection → output light drawing
The basic principles and requirements of PCB diagram design
The design of PCB starts from determining the size of the board. The size of PCB is limited by the size of the case shell, so that it can be placed into the shell exactly. Secondly, the connection mode of PCB and external components should be considered.
The six-layer PCB design is in line with EMC design
Solutions to impedance discontinuity problems in PCB design: 1. Gradient line, 2. Corner, 3. Large pad, 4. Through hole, 5. Through hole coaxial connector
The basic principles and requirements of PCB board drawing design
As an electronic engineer design circuit is a necessary hard work, if the PCB design is not reasonable performance will be greatly compromised.
What is the meaning of window opening in PCB design?
Four difficulties in the production and processing of multilayer circuit board: 1, the inner line production difficulties, 2, the inner layer between the point of difficulty, 3, pressing process difficulties, 4, drilling production difficulties
Design specification for Mark points in PCB design
SMT patch BOM list arrangement Note: 3. The description must be clear. 4. There are some crucial electronic components. Considering the fluctuations of the component market and the cost, 5. 6. Coordinate values required by coordinate T/B to distinguish po
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