The first step to enter the PCB circuit board system is to set the PCB preset background, including setting the grid volume and type, cursor type, version layer reference, wiring reference, etc.
The most fundamental difference between gold plate and gold plate is that gold is hard gold (wear-resistant), gold is soft gold (not wear-resistant).
Precautions for applying three anti - paint:1, can not let the PCB circuit board surface dripping, fluid paint, semi-humid phenomenon, 2, should ensure that the three anti paint uniform, bright, smooth, 3, can not let the surface of the paint layer of pin
For you to introduce the circuit board design precautions and operation skills :1, the processing level definition to be clear, 2, the distance from the copper foil frame can not be too close, 3, can not use the filler block picture welding pad, 4, electr
After determining PCB related selection factors, the payment method should be selected, including whether to issue bills, express logistics, packaging type and flying needle test. If there are special requirements, the information should be noted.
In PCB production process, in addition to pressing, there are several high temperature treatment processes, such as welding resistance, characterization and hot air smoothing.
Basically, V-Cut is the culprit of damaging the structure of the board, because V-Cut is in the original a large sheet of the board to cut out grooves, so the V-Cut place is prone to deformation.
The performance of reflow heating process: (1) good wettability, (2) reduce the formation of solder ball, (3) less solder spatter when reflow temperature rises sharply, the solder paste will appear almost boiling phenomenon, causing solder particle spatte
it is critical that your PCB components be accurate and functional. Therefore, dealing with reliable PCB component manufacturers and service providers is critical.
All of these tools are important when creating various layers and using different components to make printed circuit boards for complex applications.
An alternating current that varies less than 1,000 times per second is called a low frequency current, and one that varies more than 1,000 times per second is called a high frequency current, and radio frequency is such a high frequency current.
these technical documents and production documents for PCB board making, component welding, fly needle testing, circuit board debugging, and complete the complete copy of the original circuit board template.
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