PCB conduction hole plugging process and reasons detailed
It is difficult to use this process to control the production, so process engineers must adopt special flow and parameters to ensure the quality of the plug hole.
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How to judge the reliability of PCB, 14 important features tell you!
The chemical residue in the gold settling process can be left in the hole where the plug hole is not sufficient, causing problems such as weldability.
Cause and countermeasure analysis of PCB factory epoxy floor paint bulges
There is no significant relationship between the generation of bulge and construction area, the same area some severe, some light, some intact.
How to prevent PCB circuit board from bending and warping in back welding furnace
The advantage of performing reception equalization in standalone devices is that it provides optimal wiring advantage and design flexibility.
PCB circuit board multilayer laminated design
The current approach is to increase the distance between the two signal layers and make the lines of the two layers as vertical as possible to avoid signal crosstalk between layers.
Hd understand the basic architecture of tight HDI board PCB
The inner laser hole needs to be electroplated and filled, and then the outer laser hole is made. The price is more expensive than the error hole.
PCB circuit board is good or bad to identify the method
Shenzhen Princetron Circuit, as an innovative one-stop high-end electronic manufacturing services expert, will be committed to bring you more convenient experience, more intimate service and continuous innovation and progress!
pcb diode
In addition to the gold-plated copper foil at the lower left corner in the figure above, BGA packaging also uses the missing corner and concave points and silk screen dots to indicate the direction of the first foot.
Characteristic impedance problem of PCB technology in high-speed design
This simple statement connects the common sense of capacitance with the newly discovered theory of characteristic impedance.
Why should PCB plug the hole?
The development of the electronics industry also promotes the development of PCB, which also puts forward higher requirements for the production process and surface mounting technology of printed board.
pcb organic coating
the traditional aluminum sheet plugging process is changed, and the plate surface welding and plugging are completed with white mesh. Stable production and reliable quality.
pcb silver immersion
Silver immersion does not have the good physical strength of electroless nickel/gold plating because there is no nickel underneath the silver layer. In addition, silver immersion has good storage, after several years of assembly will not have a big proble
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