Method and system for checking island crossing of high-speed lines in locating and wiring

A technology of layout and wiring, high-speed line, applied in the field of post-phase inspection of PCB design, can solve the problems of inaccurate inspection results and low inspection efficiency, and achieve the effect of avoiding missed inspection and improving accuracy

Inactive Publication Date: 2018-09-18
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0005] The present application provides a method and system for checking high-speed line crossing islands in layout and wiring, so as to so

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  • Method and system for checking island crossing of high-speed lines in locating and wiring
  • Method and system for checking island crossing of high-speed lines in locating and wiring

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Embodiment Construction

[0039] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0040] In the field of PCB design, under normal circumstances, a high-speed line needs to completely refer to a reference layer. If the high-speed line completely refers to a certain power supply or ground, it meets the requirements. However, sometimes the power copper skin and ground copper skin on the reference layer may be incomplete o...

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Abstract

The invention discloses a method and system for checking island crossing of high-speed lines in locating and wiring. The method comprises the following steps of: calculating an area, on the current wiring layer, of a high-speed line and a mapping area, on a reference layer, of the high-speed line in sequence; if the area, on the current wiring layer, of the high-speed line and the mapping area, onthe reference layer, of the high-speed line are equal, judging that the high-speed line does not cross an island, and otherwise, judging that the high-speed line crosses an island; and adding the island crossing high-speed line into a problem list, wherein the problem list comprises coordinates, layers and names of high-speed lines. The system comprises an area calculation module, a judging module and a problem list establishing module. Through the method and the system, the condition that certain high-speed lines are unchecked can be effectively avoided, and benefit is brought to improve thehigh-speed line island crossing checking correctness and efficiency.

Description

technical field [0001] The present application relates to the technical field of post inspection of PCB (Printed Circuit Board, printed circuit board) design, in particular to a method and system for checking high-speed line cross-island in layout and wiring. Background technique [0002] In the field of PCB design, the wiring layer generally refers to the stacked layers in the design except the power layer and the ground layer, which allow routing. There are different traces in the trace layer, mainly including high-speed traces and common traces. Normally, a high-speed line needs to be completely referenced to a reference layer. If the high-speed line is completely referenced to some kind of power supply or ground, it meets the requirements. However, sometimes the power copper skin and ground copper skin on the reference layer may not be the only type. If the copper skin on the reference layer of the high-speed line reference is not unique, it is regarded as a high-speed ...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/398
Inventor 吴昊张敏
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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