CN101751482A - Method for checking trace of circuit layout - Google Patents
Method for checking trace of circuit layout Download PDFInfo
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- CN101751482A CN101751482A CN200810179698A CN200810179698A CN101751482A CN 101751482 A CN101751482 A CN 101751482A CN 200810179698 A CN200810179698 A CN 200810179698A CN 200810179698 A CN200810179698 A CN 200810179698A CN 101751482 A CN101751482 A CN 101751482A
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Abstract
The invention discloses a method for checking trace of circuit layout. In a layout chart, layout trace is selected as check trace, wherein the layout trace comprises a plurality of segments; along the layout trace, a first segment and second segment in the segments are selected as a first comparison line and a second comparison line respectively, wherein the first segment contains a first end point and a second end point, the second segment contains a third end point and a fourth end point, the second end point and the third end point are connected to form a common end point; according to the coordinate positions of the first end point, second end point and the common end point, whether the angle between the first comparison line and the second comparison line is not more than 90 degrees is judged to generate a judgment result; and if so, a prompt is generated.
Description
Technical field
The invention relates to a kind of checking trace of circuit layout, and particularly relevant for a kind of inspection method of in circuit layout, finding out the layout trace with right angle or acute angle.
Background technology
After finishing circuit layout, to carry out various inspections usually.Stitching (Trace) inspection is wherein in the middle of many inspection items.Because the layout slip-stick artist in the process of carrying out circuit layout, tends to accidentally have the right angle with regard to staying (angle between two line segments presents 90 degree) or the stitching of acute angle (angle between two line segments is less than 90 degree).And these have the stitching of right angle or acute angle, probably when the entity printed circuit board (PCB) operates, produce the effect of point discharge.
In general, check stitching with right angle or acute angle, often must be by the layout slip-stick artist with manual type, the checking an of stitching of stitching.After being checked through a certain stitching, whether be stitching by this stitching of artificial judgment mode again with right angle or acute angle.Yet, employed stitching in the circuit layout of common product, tens of at least of quantity reach thousands of at most.So with the inspection of a stitching of a stitching of manual type, will be very consuming time.And owing to check in artificial mode, also usually wrong situation takes place because of artificial careless mistake.
Summary of the invention
The invention provides a kind of checking trace of circuit layout, can detect layout trace apace by this with right angle or acute angle, so that allow the layout slip-stick artist revise, and then avoid the phenomenon of point discharge.
The present invention proposes a kind of checking trace of circuit layout.The method comprises the following steps.At first, in layout, choose layout trace as checking stitching, wherein this layout trace has many line segments.Afterwards, check stitching along this, select first line segment in the above-mentioned line segment and second line segment respectively as first alternative line and second alternative line, wherein first line segment has first end points and second end points, second line segment has the 3rd end points and the 4th end points, and above-mentioned second end points and above-mentioned the 3rd end points connect into common end points.Then, according to the coordinate position of first end points, second end points and common end points, judge that whether angle between first alternative line and second alternative line is smaller or equal to 90 degree, with the generation judged result.If judged result is for being then to produce prompting message.
In an embodiment of the present invention, above-mentioned generation prompting message is to indicate layout trace with high brightness.
In an embodiment of the present invention, the step of above-mentioned generation prompting message comprises layout trace is added in the inventory, and shows this inventory.
In an embodiment of the present invention, above-mentioned method for checking trace more comprise when judged result for not the time, select second line segment and the 3rd line segment respectively as first alternative line and second alternative line, wherein this second line segment and the 3rd line segment have a common end points.
In an embodiment of the present invention, above-mentioned method for checking trace comprises that more judging whether all layout trace are checked finishes.Afterwards, in layout, choose new layout trace when judging that all layout trace are checked as yet when finishing.Then, with new layout trace as checking stitching.
In an embodiment of the present invention, above-mentionedly judge that whether the angle between first alternative line and second alternative line comprises the following steps smaller or equal to the steps of 90 degree.At first, utilize the coordinate position of first end points, the 4th end points and common end points, whether one of them is horizontal line to judge first alternative line and second alternative line.When first alternative line is a horizontal line, and common end points is spent smaller or equal to 90 if the X-axis coordinate of common end points, is then judged the angle between first alternative line and second alternative line more than or equal to the X-axis coordinate of the 4th end points when being positioned at first end points right-hand.And when second alternative line is horizontal line, and common end points is spent smaller or equal to 90 if the X-axis coordinate of common end points, is then judged the angle between first alternative line and second alternative line more than or equal to the X-axis coordinate of first end points when being positioned at the 4th end points right-hand.
In an embodiment of the present invention, above-mentioned judge the angle between first alternative line and second alternative line whether have smaller or equal to 90 the degree steps comprise the following steps.At first, utilize the coordinate position of first end points, the 4th end points and common end points, whether one of them is horizontal line to judge first alternative line and second alternative line.When first alternative line is a horizontal line, and common end points is spent smaller or equal to 90 if the X-axis coordinate of common end points, is then judged the angle between first alternative line and second alternative line smaller or equal to the X-axis coordinate of the 4th end points when being positioned at the left of first end points.And when second alternative line is horizontal line, and common end points is spent smaller or equal to 90 if the X-axis coordinate of common end points, is then judged the angle between first alternative line and second alternative line smaller or equal to the X-axis coordinate of first end points when being positioned at the left of the 4th end points.
In an embodiment of the present invention, above-mentioned judge the angle between first alternative line and second alternative line whether have smaller or equal to 90 the degree steps comprise the following steps.At first, utilize the coordinate position of first end points, the 4th end points and common end points, whether one of them is perpendicular line to judge first alternative line and second alternative line.When first alternative line is a perpendicular line, and common end points is spent smaller or equal to 90 if the Y-axis coordinate of common end points, is then judged the angle between first alternative line and second alternative line smaller or equal to the Y-axis coordinate of the 4th end points when being positioned at the below of first end points.And when second alternative line is perpendicular line, and common end points is spent smaller or equal to 90 if the Y-axis coordinate of common end points, is then judged the angle between first alternative line and second alternative line smaller or equal to the Y-axis coordinate of first end points when being positioned at the below of the 4th end points.
In an embodiment of the present invention, above-mentioned judge the angle between first alternative line and second alternative line whether have smaller or equal to 90 the degree steps comprise the following steps.At first, utilize the coordinate position of first end points, the 4th end points and common end points, whether one of them is perpendicular line to judge first alternative line and second alternative line.When first alternative line is a perpendicular line, and common end points is spent smaller or equal to 90 if the Y-axis coordinate of common end points, is then judged the angle between first alternative line and second alternative line more than or equal to the Y-axis coordinate of the 4th end points when being positioned at the top of first end points.And when second alternative line is perpendicular line, and common end points is spent smaller or equal to 90 if the Y-axis coordinate of common end points, is then judged the angle between first alternative line and second alternative line more than or equal to the Y-axis coordinate of first end points when being positioned at the top of the 4th end points.
In an embodiment of the present invention, above-mentioned method for checking trace more comprises the lattice point that utilizes in the layout, first line segment in the selection line segment and second line segment are respectively as first alternative line and second alternative line, and wherein first end points, the 4th end points and common end points are corresponding to the lattice point in the layout.
In an embodiment of the present invention, above-mentioned layout is the layout of printed circuit board (PCB).
The present invention proposes a kind of computer-readable storage media, and in order to storing computer program, this computer program is in order to be loaded in the computer system and to make the method for checking trace of aforementioned calculation machine system foregoing circuit layout.
The present invention proposes the computer program that a kind of interior storage is used to check layout trace, after computing machine loads this computer program and carries out, can finish the method for checking trace of foregoing circuit layout.
The coordinate position of the end points of the present invention by obtaining two line segments that are connected in certain layout trace, the line segment of utilize the coordinate position of above-mentioned end points to judge whether have the right angle in this layout trace again (angle between two line segments equals 90 degree) or acute angle (angle between two line segments is less than 90 degree).If judge the line segment that has right angle or acute angle in this layout trace, then produce prompting message.Thus, the present invention can accelerate the layout trace of check circuit layout, and the layout slip-stick artist can revise with automatic or manual according to prompting message, avoids the effect of point discharge.
For above-mentioned feature and advantage of the present invention can be become apparent, embodiment cited below particularly, and cooperate appended graphicly, be described in detail below.
Description of drawings
Fig. 1 illustrates the checking trace of circuit layout process flow diagram into one embodiment of the invention.
Fig. 2 illustrates the synoptic diagram into the layout trace of one embodiment of the invention.
Fig. 3 A～Fig. 3 H illustrates the synoptic diagram into the coordinate position of first end points of first line segment of one embodiment of the invention and second line segment, common end points and the 4th end points.
Fig. 4 illustrates the synoptic diagram into the layout trace of another embodiment of the present invention.
Embodiment
Fig. 1 illustrates the checking trace of circuit layout process flow diagram into one embodiment of the invention.Fig. 2 illustrates the synoptic diagram into the layout trace of one embodiment of the invention.Please merge with reference to Fig. 1 and Fig. 2, at first, in step S101, in layout, choose wherein a layout trace (among Fig. 2 only with layout trace 200 as example).Wherein layout trace 200 has many line segments.In the present embodiment, layout trace 200 for example has line segment L1, L2 and L3, but does not limit its scope.In addition, above-mentioned layout can be printed circuit board (PCB) (Printed CircuitBoard, layout PCB).
In step S103, along layout trace 200, select first line segment of above-mentioned line segment and second line segment respectively as first alternative line and second alternative line, wherein first line segment has first end points and second end points, second line segment has the 3rd end points and the 4th end points, and second end points and the 3rd end points connect into common end points.For instance, suppose to select line segment L1 as first alternative line, and select line segment L2 as second alternative line.Line segment L1 has first end points 211 and second end points, 212, the second line segment L2 have the 3rd end points 213 and the 4th end points 214.Wherein, second end points 212 of line segment L1 connects into common end points 220 with the 3rd end points 213 of line segment L2.
In step S105,, judge that whether the angle between first alternative line and second alternative line spends smaller or equal to 90, with the generation judged result according to the coordinate position of first end points, the 4th end points and the common end points of first alternative line and second alternative line.With Fig. 2 is example, supposes that the coordinate position of the end points 211 of line segment L1 is (0,0), and the coordinate position of common end points 220 (being the end points 212 of line segment L1 and the end points 213 of line segment L2) is (4,2) for the coordinate position of the end points 214 of (2,0) line segment L2.According to coordinate position (0,0), (2,0) and (4,2), can judge whether the angle between first alternative line and second alternative line spends smaller or equal to 90.
Below, the bright coordinate position that how to utilize end points is for instance judged that whether angle between the line segment is smaller or equal to 90 degree.At first, the horizontal ordinate (X coordinate) that utilizes the coordinate position of first alternative line and second alternative line and ordinate (Y coordinate) judge first alternative line (being line segment L1) and second alternative line (being line segment L2) at this at this in the two what person be horizontal line or perpendicular line.For instance, (X1 is Y1) with (X2, Y2), then whether be { X1 ≠ X2 and Y2=Y1}, and this line segment whether be the judgement formula of perpendicular line be { X1=X2 and Y2 ≠ Y1} to this line segment if being horizontal judgement formula if two end points coordinates of a certain line segment are respectively.Therefore, by above-mentioned judgement formula, the end points 211 of Fig. 2 middle conductor L1 is respectively (0 with the coordinate position of common end points 220,0)=(X1 is Y1) with (2,0)=(X2, Y2), that is satisfied judgement formula { X1 ≠ X2 and Y2=Y1} is so line segment L1 is a horizontal line.In addition, because the coordinate position of the end points 213 of line segment L2 and common end points 230 is respectively (2,0) and (4,2), and the neither establishment of above-mentioned two judgement formulas, so line segment L2 is not horizontal line or perpendicular line.Therefore, the angle between line segment L1 and the line segment L2 may be acute angle or obtuse angle.
Then, judge line segment L1 and line segment L2 and whether be after horizontal line or the perpendicular line, utilize coordinate position to judge that common end points 220 is positioned at the right side of end points 211, left side, below or top again.Below will it be described with Fig. 3 A～Fig. 3 H.Afterwards, utilize the coordinate of common end points (common end points 220) and the 4th end points (end points 214) to judge whether the angle between first alternative line (line segment L1) and second alternative line (line segment L2) spends smaller or equal to 90 again.
For instance, at first, please refer to Fig. 3 A, it illustrates that first alternative line (or second alternative line) is a horizontal line, common end points C is positioned at the right side of the first end points P1 (or the 4th end points P4), and the 4th end points P4 (or first end points P1) is positioned at the top of common end points C and the first end points P1 (or the 4th end points P4).The line segment layout situation of earlier figures 3A, can utilize the judgement formula (X3＜X2, the and of Y3 ≠ Y2) (X3 ≠ X2, Y3＞Y2) } judge that whether angle between first alternative line and second alternative line is less than 90 degree.Fig. 3 B illustrates that first alternative line (or second alternative line) is a horizontal line, common end points C is positioned at the right side of the first end points P1 (or the 4th end points P4), and the 4th end points P4 (or first end points P1) is positioned at the below of common end points C and the first end points P1 (or the 4th end points P4).The line segment layout situation of earlier figures 3B, can utilize the judgement formula (X3＜X2, the and of Y3 ≠ Y2) (X3 ≠ X2, Y3＜Y2) } judge that whether angle between first alternative line and second alternative line is less than 90 degree.According to the coordinate position of common ends C point and the 4th end points P4 (or first end points P1), whether the angle that can judge between first alternative line and second alternative line spends smaller or equal to 90.If the coordinate (X2 of common end points C, Y2) with the coordinate (X3 of the 4th end points P4 (or first end points P1), Y3) satisfy one of them judgement formula after the above-mentioned judgement formula of substitution, represent between first alternative line and second alternative line angle less than 90 the degree, just the angle between first alternative line and second alternative line presents acute angle.
That is to say, when first alternative line is a horizontal line, and when common end points C is positioned at the first end points P1 right-hand,, the X-axis coordinate of common end points C spends smaller or equal to 90 if, then judging the angle between first alternative line and second alternative line more than or equal to the X-axis coordinate of the 4th end points P4.When second alternative line is this horizontal line, and common end points C spends smaller or equal to 90 if the X-axis coordinate of common end points C, is then judged the angle between first alternative line and second alternative line more than or equal to the X-axis coordinate of the first end points P1 when being positioned at the 4th end points P4 right-hand.
Please refer to Fig. 3 C, if first alternative line (or second alternative line) is a horizontal line, and common end points C is positioned at the left side of the first end points P1 (or the 4th end points P4), and when the 4th end points P4 (or first end points P1) is positioned at the top of common end points C and the first end points P1 (or the 4th end points P4), can utilize judgement formula { (X3＞X2, the and of Y3 ≠ Y2) (X3 ≠ X2, Y3＞Y2) } judge that whether angle between first alternative line and second alternative line is less than 90 degree.Fig. 3 D illustrates that first alternative line (or second alternative line) is a horizontal line, common end points C is positioned at the left side of the first end points P1 (or the 4th end points P4), and the 4th end points P4 (or first end points P1) is positioned at the line segment layout situation of the below of common end points C and the first end points P1 (or the 4th end points P4).The line segment layout situation of earlier figures 3D, can utilize the judgement formula (X3＞X2, the and of Y3 ≠ Y2) (X3 ≠ X2, Y3＜Y2) } judge that whether angle between first alternative line and second alternative line is less than 90 degree.According to the coordinate position of common end points C and the 4th end points P4 (or first end points P1), whether the angle that can judge between first alternative line and second alternative line spends smaller or equal to 90.If the coordinate (X2 of common end points C, Y2) with the coordinate (X3 of the 4th end points P4 (or first end points P1), Y3) satisfy after the substitution above-mentioned judgement formula one of them, represent between first alternative line and second alternative line angle less than 90 the degree, just the angle between first alternative line and second alternative line presents acute angle.
That is to say, when first alternative line is a horizontal line, and when common end points C is positioned at the left of the first end points P1,, the X-axis coordinate of common end points C spends smaller or equal to 90 if, then judging the angle between first alternative line and second alternative line smaller or equal to the X-axis coordinate of the 4th end points P4.When second alternative line is a horizontal line, and common end points C spends smaller or equal to 90 if the X-axis coordinate of common end points C, is then judged the angle between first alternative line and second alternative line smaller or equal to the X-axis coordinate of the first end points P1 when being positioned at the left of the 4th end points P4.
Please refer to Fig. 3 E, if first alternative line (or second alternative line) is a perpendicular line, and common end points C is positioned at the below of the first end points P1 (or the 4th end points P4), and the 4th end points P4 (or first end points P1) is positioned at the left side of common end points C and the first end points P1 (or the 4th end points P4), then can utilize judgement formula { (X3＜X2, the and of Y3 ≠ Y2) (X3 ≠ X2, Y3＞Y2) } judge that whether angle between first alternative line and second alternative line is less than 90 degree.Fig. 3 F illustrates that first alternative line (or second alternative line) is a perpendicular line, and common end points C is positioned at the below of the first end points P1 (or the 4th end points P4), and the 4th end points P4 (or first end points P1) is positioned at the line segment layout situation on the right side of common end points C and the first end points P1 (or the 4th end points P4).The line segment layout situation of earlier figures 3F, can utilize the judgement formula (X3＞X2, the and of Y3 ≠ Y2) (X3 ≠ X2, Y3＞Y2) } judge that whether angle between first alternative line and second alternative line is less than 90 degree.According to the coordinate position of common end points C and the 4th end points P4 (or first end points P1), whether the angle of judging between first alternative line and second alternative line spends smaller or equal to 90.If the coordinate (X2 of common end points C, Y2) with the coordinate (X3 of the 4th end points P4 (or first end points P1), Y3) satisfy after the substitution above-mentioned judgement formula one of them, represent between first alternative line and second alternative line angle less than 90 the degree, just the angle between first alternative line and second alternative line presents acute angle.
That is to say, when first alternative line is a perpendicular line, and when common end points C is positioned at the below of the first end points P1,, the Y-axis coordinate of common end points C spends smaller or equal to 90 if, then judging the angle between first alternative line and second alternative line smaller or equal to the Y-axis coordinate of the 4th end points P4.When second alternative line is a perpendicular line, and common end points C spends smaller or equal to 90 if the Y-axis coordinate of common end points C, is then judged the angle between first alternative line and second alternative line smaller or equal to the Y-axis coordinate of the first end points P1 when being positioned at the below of the 4th end points P4.
Please refer to Fig. 3 G, if first alternative line (or second alternative line) is a perpendicular line, and common end points C is positioned at the top of the first end points P1 (or the 4th end points P4), and when the 4th end points P4 (or first end points P1) is positioned at the left side of common end points C and the first end points P1 (or the 4th end points P4), then can utilize judgement formula { (X3＜X2, the and of Y3 ≠ Y2) (X3 ≠ X2, Y3＜Y2) } judge that whether angle between first alternative line and second alternative line is less than 90 degree.Fig. 3 H illustrates that first alternative line (or second alternative line) is a perpendicular line, and common end points C is positioned at the top of the first end points P1 (or the 4th end points P4), and the 4th end points P4 (or first end points P1) is positioned at the line segment layout situation on the right side of common end points C and the first end points P1 (or the 4th end points P4).The line segment layout situation of earlier figures 3H, can utilize the judgement formula (X3＞X2, the and of Y3 ≠ Y2) (X3 ≠ X2, Y3＜Y2) } judge that whether angle between first alternative line and second alternative line is less than 90 degree.According to the coordinate position of common end points C and the 4th end points P4 (or first end points P1), whether the angle of judging between first alternative line and second alternative line spends less than 90.If the coordinate (X2 of common end points C, Y2) with the coordinate (X3 of the 4th end points P4 (or first end points P1), Y3) satisfy after the substitution above-mentioned judgement formula one of them, represent between first alternative line and second alternative line angle less than 90 the degree, just the angle between first alternative line and second alternative line presents acute angle.
That is to say, when first alternative line is a perpendicular line, and when common end points C is positioned at the top of the first end points P1,, the Y-axis coordinate of common end points C spends smaller or equal to 90 if, then judging the angle between first alternative line and second alternative line more than or equal to the Y-axis coordinate of the 4th end points P4.When second alternative line is a perpendicular line, and common end points C spends smaller or equal to 90 if the Y-axis coordinate of common end points C, is then judged the angle between first alternative line and second alternative line more than or equal to the Y-axis coordinate of the first end points P1 when being positioned at the top of the 4th end points P4.
Please refer to Fig. 2.In the present embodiment, because line segment L1 is a horizontal line, and end points 220 is positioned at the right side of end points 211 jointly, so can utilize the explanation of Fig. 3 A, judges whether the angle between line segment L1 and the line segment L2 spends smaller or equal to 90.At first, because end points 214 is positioned at the top of common end points 220 and end points 211, so with coordinate (2, the 0)=(X2 of common end points 220 with end points 214, Y2) with (4,2)=(X3, Y3) formula { (X3＜X2, the and (X3 ≠ X2 of Y3 ≠ Y2) are judged in substitution, Y3＞Y2) }, can find X3 not less than X2 (that is not satisfying above-mentioned judgement formula), therefore, the angle between line segment L1 and the line segment L2 is not smaller or equal to 90 degree.
Because the angle between line segment L1 and the line segment L2 is not smaller or equal to 90 degree, that is therefore the judged result that step S105 produced enters among the step S107 for not.In step S107, select next group line segment (is the second line segment L2 and the 3rd line segment L3 at this) respectively as first alternative line and second alternative line.That is to say, select line segment L2, and select line segment L3 as second alternative line as first alternative line.Wherein, line segment L3 has end points 215 and 216, and the end points 215 of the end points 214 of line segment L2 and line segment L3 connects into common end points 230.Then, enter once more among the step S105, according to the end points 213 of first alternative line (be line segment L2 this moment), the end points 216 of second alternative line (being line segment L3 this moment) and the coordinate position of common end points 230, judge that angle between line segment L2 and the line segment L3 is whether smaller or equal to 90 degree, to produce judged result.In the present embodiment, the end points 215 of L3 and 216 coordinate position are for being respectively (4,2) and (4,0), so line segment L3 is a perpendicular line.
Because common end points 230 is positioned at the top of end points 216 and the left side that end points 212 is positioned at common end points 230 and end points 216, so can utilize explanation and the judgement formula { (X3＜X2 of Fig. 3 G, and (X3 ≠ the X2 of Y3 ≠ Y2), Y3＜Y2) }, judge whether the angle between line segment L2 and the line segment L3 spends smaller or equal to 90.At first, with the coordinate (4,2) of common end points 230=(X2 is Y2) with the coordinate (2 of end points 212,0)=(X3, Y3) substitution judge formula (X3＜X2, the and of Y3 ≠ Y2) (X3 ≠ X2, Y3＜Y2) }, can find that { (2＜4,0 ≠ 2) and (2 ≠ 4,0＜2) } satisfies this judgement formula.Therefore, the angle between line segment L2 and the line segment L3 is less than 90 degree.
Because the angle between line segment L2 and the line segment L3 is spent less than 90, so the judged result that is produced among the step S105 is for being then to enter step S109.Step S109 produces prompting message.Can produce prompting message in any manner in the present embodiment.For example, the mode that produces prompting message can be utilized the mode of high brightness, and the layout trace that will have right angle or acute angle marks one by one, so that allow the layout slip-stick artist come into plain view, and then above-mentioned layout trace is revised, to avoid the effect of point discharge.In a further embodiment, the mode of " generation prompting message " also can be recorded in the layout trace title with right angle or acute angle in the inventory one by one, exports this inventory then and gives the layout slip-stick artist.This inventory can be stored in computer-readable storage media and be an information paper.Thus, layout slip-stick artist just thus inventory learn which layout trace has right angle or acute angle, and utilize computer program to revise again, to avoid producing the effect of point discharge with the layout trace that the automatic or manual mode will have right angle or acute angle.
In addition, in step S105, be horizontal line (or perpendicular line) if judge line segment L2, and line segment L3 is perpendicular line (or horizontal line), that is the angle between line segment L2 and the line segment L3 equal 90 degree (right angle).Therefore, enter among the step S109, produce prompting message, line segment L2 and line segment L3 are revised so that inform the layout slip-stick artist.
Afterwards, enter among the step S111, whether all line segments of judging this inspection stitching (being selected layout trace) are checked and are finished.If this inspection stitching still has line segment not to be examined and finishes, then get back among the step S107, proceed the inspection of other line segment.The test mode of other line segment is then as the explanation of abovementioned steps S107, S105, S109, so do not repeat them here.In addition, finish, then enter step S113 if all line segments of this inspection stitching have been checked.
Step S113 judges whether all layout trace are examined in this layout and finishes.When all layout trace in this layout all are examined when finishing, then finish the flow process of this method for checking trace.On the other hand, when still having layout trace not to be examined as yet in this layout to finish, then carry out step S115.Step S115 can choose new layout trace (or next bar layout trace) as this inspection stitching in layout.That is, choose still unchecked layout trace, carrying out follow-up inspection, and in step S117, as checking stitching, return step S103 afterwards with new layout trace, carry out the inspection flow process of new layout trace.And the inspection flow process of new layout trace can be with reference to aforesaid explanation, so also repeat no more at this.
Fig. 4 illustrates the synoptic diagram into the layout trace of another embodiment of the present invention.Please at first, please merge with reference to Fig. 1 and Fig. 2 simultaneously with reference to Fig. 1 and Fig. 4, at first, in step S101, choose layout trace 400 in layout, wherein layout trace 400 has many line segments.In the present embodiment, layout can have lattice point, and the corresponding separately coordinate position of these lattice points, to make things convenient for the layout slip-stick artist layout trace is connected up.
In step S103, along layout trace 200, select first line segment of above-mentioned line segment and second line segment respectively as first alternative line and second alternative line, wherein first line segment has first end points and second end points, second line segment has the 3rd end points and the 4th end points, and second end points and the 3rd end points connect into common end points.In the present embodiment, the lattice point 401,402,403 on the layout trace 400 be can utilize, first line segment and second line segment selected respectively as first alternative line and second alternative line.Or, utilize lattice point 402,403,404 on the layout trace 400, select first line segment and second line segment respectively as first alternative line or second alternative line.And first end points of first line segment and second line segment, the 4th end points and common end points (second end points and the 3rd end points) then section are answered lattice point 401,402,403 or lattice point 402,403,404 respectively.
Afterwards, in following step S105～S117, can be with reference to the explanation of previous embodiment, so do not repeat them here.Thus, present embodiment also can be judged cloth exchange line 400 marks and whether be had the line segment of spending smaller or equal to 90 according to the coordinate position with lattice point.
The present invention provides a kind of computer program in addition, it is in order to carry out above-mentioned method for checking trace, this computer program is made up of a plurality of code segment basically, and these code segment can be finished the step of above-mentioned method for checking trace in adding borne computer and after carrying out.
In sum, the present invention is by obtaining the end points coordinate position of layout trace middle conductor, utilizes above-mentioned coordinate position to judge whether to have in the layout trace line segment of right angle (angle between two line segments equals 90 degree) or acute angle (angle between two line segments is less than 90 degree) again.If judge the line segment that has right angle or acute angle in the layout trace, then produce prompting message.Thus, the present invention can accelerate the layout trace of check circuit layout, and the layout slip-stick artist can revise according to the prompting message automatic or manual, avoids the effect of point discharge.
Though the present invention discloses as above with embodiment; right its is not in order to limit the present invention; have in the technical field under any and know the knowledgeable usually; without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is when with being as the criterion that claim was defined.
Claims (13)
1. checking trace of circuit layout comprises:
In a layout, choose a layout trace and check stitching as one, wherein this layout trace has many line segments;
Check stitching along this, select one first line segment in those line segments and one second line segment respectively as one first alternative line and one second alternative line, wherein this first line segment has one first end points and one second end points, this second line segment has one the 3rd end points and one the 4th end points, and this second end points and the 3rd end points connect into a common end points;
According to the coordinate position of this first end points, the 4th end points and this common end points, judge that a angle between this first alternative line and this second alternative line is whether smaller or equal to 90 degree, to produce a judged result; And
If this judged result is for being then to produce a prompting message.
2. checking trace of circuit layout as claimed in claim 1 is characterized in that, producing this prompting message is to indicate this layout trace with high brightness.
3. checking trace of circuit layout as claimed in claim 1 is characterized in that, the step that produces this prompting message comprises:
This layout trace is added in the inventory; And
Show this inventory.
4. checking trace of circuit layout as claimed in claim 1 is characterized in that, also comprises:
When this judged result for not the time, select this second line segment in those line segments and one the 3rd line segment respectively as this first alternative line and this second alternative line, wherein this second line segment and the 3rd line segment have a common end points.
5. checking trace of circuit layout as claimed in claim 1 is characterized in that, also comprises:
Whether all those line segments of judging this inspection stitching are checked and are finished;
If those line segment inspecteds finish, whether all layout trace of judging this layout are checked and are finished;
Check as yet when all layout trace and in this layout, to choose a new layout trace when finishing; And
Should new layout trace check stitching as this.
6. checking trace of circuit layout as claimed in claim 1 is characterized in that, judges whether the angle between this first alternative line and this second alternative line comprises smaller or equal to 90 steps of spending:
Utilize the coordinate position of this first end points, the 4th end points and this common end points, whether one of them is a horizontal line to judge this first alternative line and this second alternative line;
When this first alternative line is this horizontal line, and when this common end points is positioned at this first end points right-hand, if the X-axis coordinate of this common end points, is then judged the angle between this first alternative line and this second alternative line more than or equal to the X-axis coordinate of the 4th end points and is spent smaller or equal to 90; And
When this second alternative line is this horizontal line, and when this common end points is positioned at the 4th end points right-hand, if the X-axis coordinate of this common end points, is then judged the angle between this first alternative line and this second alternative line more than or equal to the X-axis coordinate of this first end points and is spent smaller or equal to 90.
7. checking trace of circuit layout as claimed in claim 1 is characterized in that, judges whether the angle between this first alternative line and this second alternative line has the step smaller or equal to 90 degree to comprise:
Utilize the coordinate position of this first end points, the 4th end points and this common end points, whether one of them is a horizontal line to judge this first alternative line and this second alternative line;
When this first alternative line is this horizontal line, and when this common end points is positioned at the left of this first end points, if the X-axis coordinate of this common end points, is then judged the angle between this first alternative line and this second alternative line smaller or equal to the X-axis coordinate of the 4th end points and is spent smaller or equal to 90; And
When this second alternative line is this horizontal line, and when this common end points is positioned at the left of the 4th end points, if the X-axis coordinate of this common end points, is then judged the angle between this first alternative line and this second alternative line smaller or equal to the X-axis coordinate of this first end points and is spent smaller or equal to 90.
8. checking trace of circuit layout as claimed in claim 1 is characterized in that, judges whether the angle between this first alternative line and this second alternative line has the step smaller or equal to 90 degree to comprise:
Utilize the coordinate position of this first end points, the 4th end points and this common end points, whether one of them is a perpendicular line to judge this first alternative line and this second alternative line;
When this first alternative line is this perpendicular line, and when this common end points is positioned at the below of this first end points, if the Y-axis coordinate of this common end points, is then judged the angle between this first alternative line and this second alternative line smaller or equal to the Y-axis coordinate of the 4th end points and is spent smaller or equal to 90; And
When this second alternative line is this perpendicular line, and when this common end points is positioned at the below of the 4th end points, if the Y-axis coordinate of this common end points, is then judged the angle between this first alternative line and this second alternative line smaller or equal to the Y-axis coordinate of this first end points and is spent smaller or equal to 90.
9. checking trace of circuit layout as claimed in claim 1 is characterized in that, judges whether the angle between this first alternative line and this second alternative line has the step smaller or equal to 90 degree to comprise:
Utilize the coordinate position of this first end points, the 4th end points and this common end points, whether one of them is a perpendicular line to judge this first alternative line and this second alternative line;
When this first alternative line is this perpendicular line, and when this common end points is positioned at the top of this first end points, if the Y-axis coordinate of this common end points, is then judged the angle between this first alternative line and this second alternative line more than or equal to the Y-axis coordinate of the 4th end points and is spent smaller or equal to 90;
When this second alternative line is this perpendicular line, and when this common end points is positioned at the top of the 4th end points, if the Y-axis coordinate of this common end points, is then judged the angle between this first alternative line and this second alternative line more than or equal to the Y-axis coordinate of this first end points and is spent smaller or equal to 90.
10. checking trace of circuit layout as claimed in claim 1 is characterized in that, more comprises:
Utilize the lattice point in the layout, select this first line segment in those line segments and this second line segment respectively as this first alternative line and this second alternative line, wherein this first end points, the 4th end points and this common end points are corresponding to the lattice point in the layout.
11. checking trace of circuit layout as claimed in claim 1 is characterized in that, this layout is the layout of printed circuit board (PCB).
12. a computer-readable storage media, in order to store a computer program, this computer program is in order to be loaded in the computer system and to make this computer system carry out checking trace of circuit layout as claimed in claim 1.
13. storage is used to check the computer program of layout trace in one kind, after computing machine loads this computer program and carries out, can finish the described checking trace of circuit layout of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101796982A CN101751482B (en) | 2008-12-01 | 2008-12-01 | Method for checking trace of circuit layout |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101796982A CN101751482B (en) | 2008-12-01 | 2008-12-01 | Method for checking trace of circuit layout |
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| Publication Number | Publication Date |
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| CN101751482A true CN101751482A (en) | 2010-06-23 |
| CN101751482B CN101751482B (en) | 2011-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008101796982A Expired - Fee Related CN101751482B (en) | 2008-12-01 | 2008-12-01 | Method for checking trace of circuit layout |
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| CN102789509A (en) * | 2011-05-16 | 2012-11-21 | 比亚迪股份有限公司 | Method for marking device that does not need to be welded and system |
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| CN1610485A (en) * | 2003-10-24 | 2005-04-27 | 明基电通股份有限公司 | Inspecting method for testing point before printed circuit board layout chart coming out |
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| CN107766617A (en) * | 2017-09-21 | 2018-03-06 | 郑州云海信息技术有限公司 | A kind of method of the automatic amendment board acute angle based on Cadence skill |
| CN109870466A (en) * | 2019-01-25 | 2019-06-11 | 深圳市华星光电半导体显示技术有限公司 | Method for display device periphery circuit area matching defect point and circuit number |
| CN109870466B (en) * | 2019-01-25 | 2021-06-01 | 深圳市华星光电半导体显示技术有限公司 | Method for matching defect points and line numbers in peripheral line area of display device |
| CN112395824A (en) * | 2020-11-26 | 2021-02-23 | 上海柏楚数控科技有限公司 | Routing detection method, device and equipment and storage medium |
| CN112395824B (en) * | 2020-11-26 | 2023-07-28 | 上海柏楚数控科技有限公司 | Wiring detection method, device and equipment and storage medium |
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Effective date of registration: 20170810 Address after: Room 8, building 805, sunshine times, Fenghuang Road, Fenghuang County, Shangrao, Jiangxi, Shangrao Patentee after: Jiangxi union Speed Technology Co.,Ltd. Address before: Qingnian Road Taiwan Wanhua District of Taipei city China No. 184 3 2 floor Patentee before: Fucheng International Machinery Co.,Ltd. Effective date of registration: 20170810 Address after: Qingnian Road Taiwan Wanhua District of Taipei city China No. 184 3 2 floor Patentee after: Fucheng International Machinery Co.,Ltd. Address before: Taipei City, Taiwan Chinese Shilin District Hougang Street No. 66 Patentee before: Yingda Co.,Ltd. |
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| CI01 | Publication of corrected invention patent application | ||
| CI03 | Correction of invention patent |
Correction item: Patentee|Address|Patentee Correct: Jiangxi union Speed Technology Co., Ltd.|334100, room 8, building 805, sunshine times, Fenghuang Avenue, Shangrao County, Jiangxi, Shangrao|Zhang Kaijun False: Jiangxi union Speed Technology Co., Ltd.|334100, room 8, building 805, sunshine times, Fenghuang Avenue, Shangrao County, Jiangxi, Shangrao Number: 35-01 Volume: 33 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111109 Termination date: 20171201 |