Inspection method, system, equipment and medium for back drilling

Abstract

The invention discloses a back-drilling inspection method, comprising the steps of: loading a back-drilling design file; acquiring coordinates and setting information of a back-drilling mark point in the back-drilling design file; judging whether there is a through hole on the coordinates of the back-drilling mark point And whether the coordinates of the through hole are consistent with the coordinates of the back drilling identification point; in response to the existence of the through hole and the coordinates of the through hole are consistent with the coordinates of the back drilling identification point, obtain the electrical layer that meets the preset conditions; according to the back drilling design file The set of electrical layers and the electrical layers satisfying the preset conditions judge whether the setting information of the back-drilling marker point is correct; and mark the back-drilling marker point in response to incorrect setting information of the back-drilling marker point. The invention also discloses a system, computer equipment and readable storage medium. The solution proposed by the invention can automatically check all the marking points on all the back-drilling light-painting layers on the PCB one by one, which greatly improves the working efficiency.

Description

technical field [0001] The invention relates to the field of software detection, in particular to a method, system, equipment and storage medium for backdrilling inspection. Background technique [0002] Usually, some high-speed signal interconnection protocols will make requirements for the above elements in the link that may affect the signal integrity, so that the passive link can meet the corresponding rate requirements. Among them, the optimization of vias is the top priority, and via back drilling is the most effective and direct method to improve signal integrity. Therefore, the high-speed signals on current high-speed PCB boards such as switches and servers Back drilling has become a must. [0003] Since back drilling is to carry out "secondary drilling" on the basis of the original drilling, so, like the design of through holes, when the board factory is back drilling, it is necessary for the PCB designer to provide the drilling diagram of the back drilling, that i...

AI Technical Summary

Problems solved by technology

[0004] After completing the back-drilling settings, in order to avoid design failure due to errors such as missed settings or wrong back-drilling settings, the designer often needs to spend several times the manpower and time spent on checking the generated back-drilling photopainting layer , the designer needs to manually check each via on each high-speed line of the back-drilling repeatedly. The check items include but are not limited to back-drilling start layer and termination layer, retaining stub length and other attributes, so if there are 1000 vias The network needs to be back-drilled. There are at least two layer-changing vias on each network. The designer has at least 1000*2*3=6000 check items to pay attention to. This workload is huge, and even a skilled engineer must at least Spending hours on inspection and repeating a huge workload will affect the inspector's attention and the quality of the inspection, and such a mistake will lead to product failure and repeated

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