A Method for Calculating the Area of ​​Combined Figures in Electronic Layout

Abstract

The invention discloses a method for calculating a composite graph area of an electronic layout. The method comprises the steps that the electronic layout is exported to be a GBR file in EDA software used for making the electronic layout; the GBR file is imported into CAM350 software; merging processing is performed on a border layer and a printing layer of the imported electronic layout file in the CAM350 software; a gap between the border layer and the printing layer of the file processed in the step c is filled up in the CAM350 software; a background layer and a filling layer of the file processed in the step d are separated in the CAM350 software; the file processed through the CAM350 software is exported to be a dxf file; the dxf file is imported into AUTOCAD software, and regions are created for the imported file in the AUTOCAD software; the regions are merged in the AUTOCAD software; and the AUTOCAD software is utilized to calculate the border area S1 and the area S2 of a region obtained after merging, and the composite graph area S of the electronic layout is obtained by subtracting S2 from S1. Through the method, calculation of the total area of a composite graph obtained after combination is realized; and printing area calculation efficiency is high, and calculation time can be substantially shortened.

Description

technical field [0001] The invention relates to the technical field of microelectronics manufacturing, in particular to a method for calculating the combined graphic area of ​​an electronic layout. Background technique [0002] Thick-film hybrid integrated circuits or PCB printed circuit boards and other electronic products need to be drawn in advance in the electronic design software, and the graphics of the specific lines in the layout file are then printed on the substrate materials such as ceramics and PCBs by means of light drawing and plate making. Print or deposit other metal materials on the upper layer, and the printed or deposited graphics should be consistent with the design graphics. [0003] In actual production, due to the high cost of materials, especially when the printing materials are gold-containing materials, because the gold-containing materials are expensive, they need to be purchased. However, this type of material costs several hundred yuan per gram o...

AI Technical Summary

Problems solved by technology

[0010] However, electronic layout usually uses special design software such as Protel, Cadence, Powerpcb, etc. These software do not have the function of area calculation, as shown in the attached figure 1 As shown, if you want to use special design software such as Protel to calculate the area, the existing technology can be obtained by measuring the length and width of each figure, calculating the area and then accumulating to obtain it. There is also superposition between the graphics, and there may be a round corner transition at the superposition. The existing calculation cannot take this factor into account, and it also affects the accuracy of the calculation results. Therefore, the existing technology is time-consuming and labor-intensive, and the calculation is inaccurate

For the area of ​​slightly more complex graphics, this method needs at least 1 day to measure and calculate one by one, and it also needs repeated proofreading

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