Cause analysis of no copper in PCB hole sinking copper
The following is my personal opinion and control method of the hole without copper open circuit. The reason for the absence of copper in the pore is nothing more than。
Контрактное производство электроники под ключ в Китае
Шэньчжэнь, район Баоань, улица Фуюн, улица Фуцяо, район 3, промышленный парк Лонгхуй 6
High frequency PCB Design too Complex? You need to know these wiring tips
At the same time, it should be noted that the transmission line on the PCB should not have mutations or corners, and the impedance of each point of the transmission line should be kept continuous as far as possible, otherwise there will be reflections bet
How to ensure PCB board height thickness diameter ratio, small aperture connectivity
The removal of copper from the through-hole can be caused by chemical factors, such as etching, or mechanical causes, such as blow-holing, stress cracking, or deposition detachment.
Nowadays PCB design time is getting shorter
Therefore, the relationship between the hole and the pin inductive reactance must be considered and the priority of the pass hole specification must be set.
How to place and install decoupling capacitors in PCB layout
The size of the digital circuit output current Ioh pulled from the power supply at high voltages and the current Iol injected at low voltages is generally different, that is, Iol > Ioh.
2020 Global PCB industry market status!
As a result, future digital life situations such as remote teaching, intelligent diagnosis and treatment, and AI for industrial risk control have been started in advance.
pcb coupling
Increase the dielectric constant of PCB board, which can prevent the high frequency parts such as the transmission line near the board from radiating outward.
Interference analysis and countermeasure in high frequency PCB design
In PCB, there are only two kinds of transmission lines: strip line and microwave line. The biggest problem of transmission line is reflection, which will cause many problems.
5G consumer electronics accelerated upgrade, PCB industry will usher in a new wave of climax
According to Prismark statistics, mobile terminal PCB demand is mainly HDI and flexible board (HDI board accounts for about 50.68%), and has 26.36% packaging substrate demand.
Analysis of PCB open-circuit reasons and improvement methods
PCB circuit opening and short circuit are the problems encountered by PCB manufacturers almost every day, which has been troubling the production and quality management personnel.
How to solve signal reflection in high speed PCB board design
In a high speed PCB, wiring is more than just connecting two points. As a qualified engineer, wiring is a hybrid knowledge carrier including resistance, capacitance and inductance.
How to solve EMI problem in multi-layer PCB design
Starting from the most basic PCB board, this paper discusses the function and design skills of PCB stacking in controlling EMI radiation.
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