Method for inspecting dislocation of bit numbers and devices in PCB designs

Abstract

The invention discloses a method for inspecting dislocation of bit numbers and devices in PCB designs. The method is characterized in that the devices or the bit numbers in the designs are selected and grouped according to the intervals between the devices or the bit numbers, and the intelligent grouping mode is more similar to layout and the industry habit for adjusting the bit numbers and user receiving standards; the bit numbers and the devices are rapidly matched through the coordinate value fuzzy means, two-dimensional indexes are mapped for the bit numbers and the devices respectively, it can be avoided that inspecting can not be conducted due to the fact that the distance between the devices and the bit numbers is too large, various dislocation situations can be inspected, and accurate positioning can be achieved when results are displayed. By the adoption of the method, the bit numbers in each design can be inspected within 20 seconds in average, time and labor are saved, accuracy is high, and the missing inspection phenomenon does not exist.

Description

technical field [0001] The invention relates to the technical field of PCB circuit design, in particular to a method for checking device bit number misalignment in PCB design. Background technique [0002] PCB (Printed Circuit Board), the Chinese name is printed circuit board, also known as printed circuit board, printed circuit board, is an important electronic component, a support for electronic components, and a provider of electrical connections for electronic components. Now PCB design is developing in the direction of high speed and high density, and the competition is becoming increasingly fierce. The PCB board is becoming more and more complex, and the number of device packages carried on it is also increasing. In the layout of the PCB device, there will always be negligence, and the position number of the device in the PCB will be marked in the wrong position, so as to facilitate the subsequent debugging and production. , testing, etc. cause hidden dangers, bit num...

AI Technical Summary

Problems solved by technology

The PCB board is becoming more and more complex, and the number of device packages carried on it is also increasing. In the layout of the PCB device, there will always be negligence, and the position number of the device in the PCB will be marked in the wrong position, so as to facilitate the subsequent debugging and production. , testing, etc. cause hidden dangers, bit number misalignment sometimes requires a huge price, and if it is serious, the integrated chip will be burned

Therefore, PCB bit number inspection is an indispensable procedure. However, there is currently no effective way to check the bit number. It mainly relies on quality inspectors to conduct manual inspections. On average, it takes 30 minutes to check the number of each design, which is time-consuming and laborious. Moreover, the accuracy rate is low, and there are occasional missed detections.

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