In order to meet different market needs, pcb board manufacturers can open these different forms of files. Then, what materials need to be prepared before pcb board proofing? Follow long Bo technology to understand!
Anti-interference directly reflects the performance and reliability of the whole system. For PCB design engineer, anti-interference design is the key and difficult point that we must master.
Therefore, pcb manufacturers believe that when designing or reinforcing equipment, they should be placed on PCB boards with higher hardness, or use certain methods to avoid pcba 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.
From 4G upgrade to 5G, communication base station required PCB quantity and price rise. Due to the high-frequency microwave characteristics of 5G, the base station density is higher than that of 4G base stations.
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
Wiring is the general requirement of high frequency PCB design on the basis of reasonable layout. Wiring includes automatic wiring and manual wiring.
Both schematic drawing and PCB design should be considered from the high frequency working environment in order to design a more ideal PCB.
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,
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
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.
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.