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.
Copy board to change the board industry said that the car is growing in popularity, automotive sensor market demand will continue to maintain a growing trend.
The temperature range can be automatically selected. It has its own refrigeration system, without external circulating water cooling device, and adopts stainless steel water pump, so that the noise is reduced and the generation of rust is eliminated, avoi
in the manufacturing process of PCB, the three stages that must be tested are the inner layer after etching, the outer line after etching, and the finished product.
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
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.
in the process of PCB copying board, PCB scanning is undoubtedly the first step of all processes. Therefore, we first get a good PCB board, and then it must be scanned by the computer, and then backup the relevant parameters and the original PCB layout.
PCB copy board and chip, the two are more like the relationship between the lips and teeth, think about it carefully, PCB copy board is like the shelter of the chip, without the shelter, the chip can only wander around, and can not play their role.
PCB copying board design and manufacturing is from the subtraction method to addition method, this paper mainly describes the PCB subtraction method and addition method related concepts and manufacturing process, for your reference to learn!
PCB copy board design step two: Draw your own definition of non-standard device package libraryIt is suggested to put the devices drawn by yourself into a dedicated design file of PCB library.
The arrival of the intelligent age, not only brings convenience to people's lives, but also has a profound impact on all industries, so the PCB copy board, design put forward higher requirements, professional PCB copy board companies should continue to im
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