The important factor affecting the quality of PCB isolation film
Multi-layer PCBS stored for more than three months may show stress concentration (from pressing) and water absorption (which will increase Z expansion).
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PCB original | high-speed PCB design software cascade structure design proposal
Test purpose: As PCB may be used in sea or seaside areas with high salinity in the air, its function will be affected due to poor salinity resistance, and serious accidents will be caused.
What is the theory of PCB design microwave dual transmission line?
For RF-PCB wiring, each adjacent signal line (including adjacent planes) is formed to follow the basic principle of double line features (this will be explained later).
Design concept and principle of microwave high frequency circuit PCB
a simple and applicable method is to first lay the ground wire, then place key signals such as high speed clock signals or sensitive circuits near their ground loops, and finally route other circuits. The layout of the signal line is best arranged accordi
Three elements of EMC suppression in PCB
With both analog and digital functions of the circuit board, analog and digital are usually separated, only connected at the power source.
Why should PCB board be covered with copper?
From the two formulas discussed above, it can be concluded that the use of thinner PCB board is beneficial to reduce the two parasitic parameters through the hole.
RF circuit and digital circuit do in the same block PCB solution
The rapid development of RF integrated circuits for wireless digital audio and video data transmission systems, wireless remote control, telemetry systems, wireless data acquisition systems, wireless networks and wireless security systems to solve the bot
Radio frequency and digital circuit design on PCB board?
They can be integrated on a small circuit board, used in wireless digital audio, digital video data transmission system, wireless remote control and telemetry system, wireless data acquisition system, wireless network and wireless security system and many
Development prospect analysis of PCB industry in China in 2018
The use of impedance circuit board with reputation is solving many real problems for people, for the safety of very concerned manufacturers, choose a impedance circuit board manufacturers matching their own products for cooperation, can ensure the safety
PCB has become an important and key part of electronic information products
For some parts that cannot be inspected by appearance, as well as the through hole inside the PCB and other internal defects, X-ray fluoroscopy system has to be used for inspection.
PCB inspection, these points you must know
PCB board classification is many, common paper based printed circuit board, epoxy glass fiber cloth printed circuit board rice composite substrate printed circuit board, special substrate printed circuit board metal substrate.
PCB board has double-sided PCB
Odd layer PCB needs to add non - standard laminated core layer bonding technology on the basis of nuclear structure technology. Compared with the nuclear structure, the production efficiency of the plant adding foil outside the nuclear structure will decr
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