System and method for checking design error

Abstract

The invention is a design error checking system and method, applied to a circuit board routing system, by setting design error judging rules, classifying the checked errors after design rules check (DRC), judging whether the checked errors can be neglected. And the system comprises: setting module, layer selection module, classifying module, judgment module and prompt module, and can also comprises export module and save module; when determining the checked errors are unneglectable errors, the system generates a prompt message to prompt a user that the checked errors are unneglectable errors so that he user can modify them, and able to raise the efficiency of DRC in error processing and save time and manpower.

Description

technical field [0001] The present invention relates to a design error inspection system and method, in particular to an error determined after a design rule check (Design Rules Check; DRC) of circuit board wiring, which is more in line with the actual requirements of circuit board error inspection. inspection system and method. Background technique [0002] In recent years, the requirements for printed circuit board (Printed Circuit Board; PCB) layout and wiring have become more and more complex, and the number of transistors in integrated circuits has continued to increase, which makes the device faster and the rise time of each pulse edge is shortened. At the same time, the number of pins is also reduced. more and more. Relatively, as the number of integrated circuits becomes denser, problems such as frequency, impedance, detection, and crosstalk will arise in circuit board design. Generally speaking, impedance, trace length, and clearance are one of the influencing fac...

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Problems solved by technology

First of all, after the design rule check, all design rule check errors are displayed in the same display mode, which makes it difficult for engineers to distinguish the type of specific design rule check errors, and it is also difficult to modify the design rule check errors by category; In addition, the design rule checking of wiring software is generally too rigid. For some wiring that is not actually wrong, it still reports design rule checking errors. A circuit board often has dozens or hundreds of such errors. Engineers must It eliminates the errors that really need to be dealt with, which not only wastes a lot of time, but also may cause unnecessary trouble to the circuit board design due to errors in the elimination process

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