Explain PCB high frequency board and classification
The presets need to contain both electrical and structural reliability. Generally in the preset very high speed PCB wrench (greater than GHz frequency) this board problem will be relatively tight.
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Why do we need solder resistance layer and electroplating gold and silver on PCB board?
PCB surface needs to be welded components, so a part of the copper layer needs to be exposed for welding. These exposed layers of copper are called pads. The pad is generally rectangular or circular, and the area is small.
What are the requirements of PCBA welding for PCB board
PCBA welding processing, usually PCB board has a lot of requirements, and must meet the requirements of the board to accept welding processing.
PCB Halogen-free circuit board introduction
the polymer resin containing phosphorus nitrogen compounds will produce non-combustible gas when it is burned. This gas can isolate the surface and air of the resin combustion
What does impedance mean to PCB boards?
In a circuit with resistance, inductance, and capacitance, an obstacle to alternating current is called an impedance. Impedance is usually denoted by Z, which is a complex number.
What are the requirements of PCB design for PCBA board processing?
At this stage, we move from written blueprints to physical representations constructed using laminate or ceramic materials. Some of the more complex applications require flexible PCBS when particularly compact Spaces are required.
What are the causes of PCB board deformation
In PCB proofing, how to reduce or eliminate the deformation caused by different material characteristics or processing has become one of the most complicated problems faced by PCB manufacturers.
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.
PCB copying board cleaning technology
circuit board cleaning technology has become an important "technical work". At present, the new generation of circuit board cleaning technology has the following four methods.
Analysis of the development situation of domestic printed circuit board technology
Since 2005, the world's electronic circuit industry technology has developed rapidly, mainly focusing on passive component PCB, inkjet PCB process, laser direct imaging technology, optical technology PCB and nanomaterials in PCB board applications.
The cause and solution of PCB board deformation
PCB board parts in storage also has a certain impact on deformation, in some manufacturers due to more production, small site, will stack a number of boards together storage, which will also lead to external deformation of the board.
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.
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