Factors that affect the price change of PCB processing
At present, PCB board manufacturers generally adjust PCB prices according to different payment methods, with a range of 5%-10%, which also causes the difference in price.
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The main reasons for PCB flux fire during wave soldering are as follows
PCB flux coating is too much, or there is no effect of wind knife, and too much steam is volatilized in the preheating section. If it is caused by this situation, according to the method described above, the wind knife installed or adjusted to the normal
Cause analysis and countermeasure of PCB flux ignition during over wave soldering
Basically there will be no excess PCB flux dripping down in the preheating zone; It can not only reduce the risk of PCB flux fire, but also protect the heat pipe from erosion and extend the service life.
What factors affect the characteristic impedance of a PCB board?
The same material produced by different pcb manufacturers varies due to its resin content. The dielectric constant decreases with the increase of frequency, so in practical application, the dielectric constant of materials should be determined according t
PCB circuit board design and manufacture of board components related requirements
PCB circuit board manufacturers to PCB circuit board related design parameters detailed.
PCB circuit board material can be divided into several types?
High Tg material: the so-called Tg value, now electronic products require the circuit board to be resistant to high temperature, at a certain temperature, the circuit board can not burn, can be softened, the softening temperature is called glass conversio
Discussion on EMI Rules of high speed PCB Design
High-speed signal networks, such as clock signals, produce closed-loop results when multi-layer PCB lines are routed. Such closed-loop results will generate ring antennas and increase EMI radiation intensity.
Brief discussion on PCB board design points in switching power supply design
It has been proved that the reliability of electronic equipment will be adversely affected even if the circuit diagram is designed correctly and the printed circuit board is not designed properly.
Analysis of PCB selective welding process difficulties
Flux spraying The PCB is carried by the X/Y manipulator through the flux nozzle, and the flux is sprayed on the PCB to be welded. Flux has a single nozzle spray, microporous spray, synchronous multi - point/graphic spray.
At present, the conventional nickel plating on PCB adopts soluble anode
only light gas precipitation. Generally, the PH value of PCB nickel plating electrolyte is maintained between 3 and 4. The nickel plating solution with higher PH value has higher dispersion force and higher cathode current efficiency.
For high frequency applications, PCB board interconnect for high frequency PCB design techniques are
These are the high frequency PCB design tips for PCB interconnect. If you are familiar with these methods, you will understand that the coplanar microstrip design with copper cladding on the back is more economical and practical than the strip design.
PCB copy board to build telecom equipment localization security alliance
the main problem of the interconnection between chip and PCB is that the high interconnection density will lead to the basic structure of PCB material becoming a factor limiting the increase of interconnection density. This article shares practical tips f
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