Wireless signal test and analysis of PCB circuit system
this chapter aims to help you understand the new techniques of wireless signal testing, and it also provides some new ideas for signal analysis in modern wireless environments.
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PCB (circuit board) PCBA cleaning is really important?
Components with large heat or current should not be placed in the corners and edges of PCB board, and radiators should be installed as far as possible, and away from other devices, and ensure that the heat dissipation channel is smooth.
Consideration of power signal Integrity in PCB proofing design
In the high-speed design, we must consider the capacitance of the parasitic parameters, quantitative calculation of the number of decoupling capacitors and the capacity of each capacitor and the specific position of the placement, to ensure that the imped
PCB proofing industry reshuffle is nonsense small factory break through to quality is king
Returning to the PCB proofing market, price is the first indicator for customers to choose products, but in the future, with the gradual standardization of PCB industry standards, it will be difficult to attract repeat customers by relying on low price an
PCB has connection functional requirements and needs
It is impossible to predict exactly where PCB surface treatment technology will go in the future. Anyway, to meet customer requirements and protect the environment must be done first!
Characteristics, applications and development trend of common PCB surface treatment processes
Therefore, electroless nickel plating/gold leaching is to coat the copper surface with a thick layer of good electrical nickel gold alloy, which can protect the PCB for a long time; In addition, it has environmental tolerance that other surface treatment
Automotive electronics breeding pcb double-sided circuit board new blue sea
The impedance and loss of PCB are crucial to the transmission of high-speed signals. In order to analyze such a complex transmission channel, we can study its impact on signals through the impact response of transmission channel.
PCB engineering design requirements
The shelf life of PCB made by OSP process and pure gold sinking process is generally 6 months after packaging. Baking is not recommended for OSP process.
Study on PCB welding resistance design for PCBA manufacturability
It can be seen that the coordination between welding aid and welding resistance pad design plays a decisive role in improving PCBA manufacturability and welding pass-through rate.
Compared with single-sided and double-sided PCB
There is no limit to the number of layers of multilayer boards. At present, there are more than 100 layers of PCB, and the common ones are four and six layers of boards.
Technical article - The cause of PCB board hole plugging
At present, our company through a large number of experiments, choose different types of ink and viscosity, adjust the pressure of screen printing, basically solve the hole hole and uneven, has adopted this process for mass production.
Recent development trend of PCB technology in electronic field
The domestic leading automobile board represented by Shanghai Electric Company has actively participated in international cooperation and introduced advanced technology. The high-frequency PCB used for millimeter wave radar has been mass-produced.
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