Five requirements for PCB processing
The size of PCB is limited by the capability of the equipment in the electronic processing line, therefore, the appropriate size of PCB should be considered in the design of the product system scheme.
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Some specification requirements for PCB design
The layout should meet the following requirements as far as possible: the overall connection should be as short as possible, and the key signal line should be the shortest; High voltage and high current signals are completely separated from low voltage, l
High frequency PCB routing design
Wiring is the general requirement of high frequency PCB design on the basis of reasonable layout. Wiring includes automatic wiring and manual wiring.
PCB layout method tips
Both schematic drawing and PCB design should be considered from the high frequency working environment in order to design a more ideal PCB.
How to design holes in PCB wiring
Every hole on PCB is called through hole. From the perspective of function, through hole can be divided into two categories: one is used as an electrical connection between layers; The second is used for fixing or positioning devices. If from the process,
How does PCBA manufacturer control the quality
The manufacturing process of PCBA involves many links, and only by controlling the quality of each link can a good product be produced. Generally, PCBA is made of a series of PCB circuit board manufacturing, component purchasing and inspection, SMT patch
3 minutes to understand the whole process of PCB schematic backsliding
Then use these technical documents and production documents to make PCB board, component welding, fly needle testing, circuit board debugging, and complete the complete copy of the original circuit board template.
Record PCB details
It's best to take two pictures of the device's location with a digital camera. A lot of pcb circuit boards do more advanced above the diode transistor some do not pay attention to see.
PCB signal integrity problem
The signal integrity problems of PCB mainly include signal reflection, crosstalk, signal delay and timing error.
Make PCB high reliability!
It has been proved that the reliability of electronic equipment will be adversely affected even if the circuit diagram is designed correctly and the printed circuit board is not designed properlyAt present, the printed circuit board is still used as the m
Pcb inhibits reflection interference
The value of the matching resistance should be determined by the maximum value of the output drive current and the absorption current of the integrated circuit.
High reliability PCB's 14 important characteristics
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. Moreover, tin beads may be hidden in the hole, which may splash out during assembly or actual use, causi
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