The method of judging the quality of PCB circuit board
Now there are many ways to layer, there are potions corrosion, tool stripping, but it is easy to put the layer over, lost data. Experience tells us that sandpaper is the most accurate.
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PCB circuit board how to distinguish good and bad and detailed PCB copy board process
the general double panel copying board is much simpler than the multi-layer copying board, multi-layer copying board is prone to inaccurate situation, So the multilayer board copy board to be particularly careful and careful (which internal through holes
The four elements of characteristic impedance are developed in the manufacture of pcb circuit boards
Although the miniaturization trend makes it more challenging, it is possible to use multiple connector groups on two PCB boards by using best design practices.
PCB circuit board processing and production difficulty in where?
The high-rise plate is thicker, heavier and larger than the conventional multilayer plate. The corresponding heat capacity is also larger. When welding, more heat is needed and the welding high temperature time is longer.
There are several processes of sun block welding for PCB circuit boards
Sunblock welding process can be roughly divided into three operating procedures:The first step is exposure. The second step is developing. The third operation process repair board.
The application of machine vision technology in PCB circuit board detection
In China, the application of visual technology began in the 1990s. Because the industry itself is an emerging field, coupled with the insufficient popularity of machine vision product technology, the application of the above industry is almost blank.
Common cause of PCB circuit board failure
. In the design of PCB boards and the production of PCB boards, engineers should not only prevent PCB boards from being accidentally encountered in the manufacturing process, but also avoid design errors.
PCB circuit board hole blocked, what is the reason?
As electronic products to "light, thin, short, small" direction of progress, PCB also to high density, high difficulty degree of progress.
What materials and classification do pcb circuit boards have?
Copper clad plate is the basic material of electronic industry, mainly used in the processing and manufacturing of printed circuit board (PCB), widely used in TV, radio, computer, computer, mobile phone, communication and other electronic products.
Introduction to reliability test of PCB circuit board
PCB circuit boards play an important role in life today. It is the foundation of electronic components and the highway. In this regard, the quality of the PCB is critical.To check the quality of a PCB, a number of reliability tests must be performed. The
Common circuit board and multilayer PCB circuit board difference pcb
With the reduction of the aperture, the original debris that has no effect on the larger aperture, pcb board factory, such as brush debris, volcanic ash, once remaining in the hole, will make the chemical precipitation of copper, copper plating will lose
Copper clad PCB circuit board solution
Even the well-written and actually implemented technical specifications for PCB laminates do not specify the test items that must be carried out to determine that PCB laminates are the cause of manufacturing process problems.
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