PCB and preparation method of PCB wiring structure

Abstract

The invention provides a PCB, which comprises at least one group of differential lines, wherein at least one end of each differential line is provided with a hole disc, and a gap is formed between each hole disc and the corresponding differential line. According to the invention, the PCB provided by the invention comprises at least one group of differential lines, and when one end of each differential line is provided with the hole disc, a gap is formed between the hole disc and the wiring of the differential line, so that the wiring is separated from the hole disc, the coiling part of the hole disc can be changed into an effective wiring length, the consistency of the total wiring length of the differential line is ensured, and the signal transmission quality is improved. The invention also provides a preparation method of the PCB wiring structure, and the preparation method has the above beneficial effects.

Description

technical field [0001] The present application relates to the technical field of wiring, and in particular to a method for preparing a PCB board and a PCB wiring structure. Background technique [0002] With the development of cloud computing applications, informatization has gradually covered all fields of society. People's daily work and life are more and more communicated through the network, the amount of network data is also increasing, and the signal rate of server products is increasing exponentially. Among them, the quality of wiring on the PCB board is an important factor affecting the quality of signal transmission. Factors, designs involving high-speed signals will adopt the form of differential routing, that is, two metal wires are pushed forward in parallel, and the total length of the two wires needs to be strictly equal. In the process of adjusting the length of the two wires, the engineer will stretch the shorter wire to meet the equal length of the two wire...

AI Technical Summary

Problems solved by technology

In the process of adjusting the length of the two wires, the engineer will stretch the shorter wire to meet the equal length of the two wires, but if the position where the wire is stretched appears in the hole plate (the hole plate and the wiring are both metal) , it can be seen from the fact that electronic conduction always follows the shortest path, the elongated part in the hole plate will fail, resulting in unequal lengths of differential lines and affecting signal quality

Images