CN101673310A - Method for automatically regulating line width - Google Patents
Method for automatically regulating line width Download PDFInfo
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- CN101673310A CN101673310A CN200810160909A CN200810160909A CN101673310A CN 101673310 A CN101673310 A CN 101673310A CN 200810160909 A CN200810160909 A CN 200810160909A CN 200810160909 A CN200810160909 A CN 200810160909A CN 101673310 A CN101673310 A CN 101673310A
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- live width
- netting twine
- width
- weld pad
- printed circuit
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Abstract
The invention discloses a method for automatically regulating a line width in a printed circuit layout, which comprises the following steps: firstly, obtaining the width of each pad in the printed circuit layout; secondly, obtaining the line width of each reticle in the printed circuit layout, wherein the reticles are connected with the pads; thirdly, judging whether the line width of the reticleis greater than the width of the pad or not; and finally, if the line width of the reticle is greater than the width of the pad, regulating the line width of the reticle to be the width of the pad. Thus, the line width of the reticle can be automatically regulated to be the width of the pad connected by the reticle.
Description
Technical field
The present invention relates to a kind of printed circuit topology, particularly relate to the method for adjusting live width in a kind of printed circuit layout automatically.
Background technology
Because the prosperity of computing machine science and technology, make electronic product when research and development, all can utilize computer run computer-aided design (CAD) (computer-aided design, CAD) software or electric design automation (ElectronicDesign Automation, EDA) software is drawn its circuit theory diagrams (schematic), and comes it is carried out preliminary debug action through computer aided design software.Before drawing, computer aided design software must have the topology data of each element in the circuit just can draw, and topology data comprises the shape and size of element size, connection pin type, weld pad (pad) and the safe spacing between weld pad.After circuit theory diagrams were completed, layout personnel can see through computer aided design software again circuit theory diagrams are converted to printed circuit layout (printed circuit board layout, PCB layout).
After converting the printed circuit layout to, the work that layout personnel can connect up.And in circuit layout, the broad that the live width of power lead and ground wire can design is to meet its current requirements.If when from weld pad, pulling out power lead or ground wire, for because of its special designing requirement, and make its live width exceed the width of weld pad.With circuit board, weld pad and netting twine if the live width of netting twine exceeds the width of weld pad, can make the copper-clad surface of this weld pad enlarge all being Copper Foil.Safe distance deficiency between the copper-clad surface that therefore can cause this weld pad and adjacent weld pad copper-clad surface, so that circuit board when etching, has the incomplete phenomenon of etching, and the circuit board that etching is come out is understood wrong generation.Therefore when carrying out printed circuit layout layout, layout personnel must all be adjusted into the same width of connected weld pad with the live width of all power leads that are connected with weld pad and ground wire, to avoid the incomplete generation of circuit board etching.
With an electronic product; usually can dispose considerable element on its circuit board; and an element all can connect at least one power lead and a ground wire, so that the quantity of power lead on the printed circuit layout of an electronic product and ground wire can be very is many.If adjust manually to carry out power lead and ground wire live width, what its workload relatively can be very is huge, and carry out can be suitable consuming time.Simultaneously, the action of above-mentioned adjustment action for constantly repeating causes easily with the words of manually carrying out that personnel's is tired out.
Summary of the invention
The invention provides the method for adjusting live width in a kind of printed circuit layout automatically, the live width that can adjust netting twine automatically is the width of weld pad.
The present invention proposes to adjust automatically in a kind of printed circuit layout the method for live width, and the method for described automatic adjustment live width comprises the following steps.Obtain the width of weld pad in the printed circuit layout at first, earlier.Then, obtain the live width of netting twine in the printed circuit layout, wherein netting twine connects weld pad.Then, whether the live width of judging netting twine is greater than the width of weld pad.If the live width of netting twine is greater than the width of weld pad, the live width of then adjusting netting twine is the width of weld pad.If the live width of netting twine is not then adjusted the live width of netting twine not greater than the width of weld pad.
In one embodiment of this invention, this step that obtains the width of netting twine comprises: obtain the kenel of netting twine, and the live width that obtains netting twine according to this kenel.
In one embodiment of this invention, the method for described automatic adjustment live width comprises that more whether the line segment of judging netting twine is positioned at the weld pad is the preset length of starting point.
In one embodiment of this invention, the step that this live width of adjusting netting twine is the width of weld pad comprises that the live width of then adjusting line segment is the width of weld pad if it is the preset length of starting point that the line segment of netting twine is positioned at the weld pad.
In one embodiment of this invention, the method for described automatic adjustment live width more comprises if it is outside the preset length of starting point that the line segment of netting twine is positioned at the weld pad, does not then adjust the live width of line segment.
Automatically adjust the method for live width in printed circuit layout of the present invention, it is weld pad and be connected the live width of netting twine with it relatively, and adjusts the live width of this netting twine according to comparative result.Whereby, can adjust the width of the live width of netting twine automatically for the weld pad of its connection.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of instructions, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.
Description of drawings
Fig. 1 is the method flow diagram of the automatic adjustment live width of one embodiment of the invention.
Fig. 2 is the schematic layout pattern before the live width of one embodiment of the invention is adjusted.
Fig. 3 is the adjusted schematic layout pattern of the live width of one embodiment of the invention.
Fig. 4 is the method flow diagram of the automatic adjustment live width of another embodiment of the present invention.
Fig. 5 is the adjusted schematic layout pattern of the live width of another embodiment of the present invention.
The main element symbol description is as follows:
S101-S105: the step of the method for the automatic adjustment live width of one embodiment of the invention
S401-S408: the step of the method for the automatic adjustment live width of another embodiment of the present invention
201-203: netting twine
211-214: weld pad
C1, C2: abutment
W
P1, W
P2, W
P3: width
Embodiment
Because manually carrying out very consuming time of mode that live width adjusts, and the action that repeats allows the people feel tired tired easily, so the present invention proposes in a kind of printed circuit layout the method for adjustment live width automatically, and the method can realize for the form of computer program.Below in conjunction with accompanying drawing and preferred embodiment, adjust its feature of method and the effect thereof of live width in the printed circuit layout that foundation the present invention is proposed automatically, describe in detail as after.
Fig. 1 is the method flow diagram of the automatic adjustment live width of one embodiment of the invention.Please refer to Fig. 1, in the present embodiment, at first in step S101, can obtain the width of weld pad in the printed circuit layout.Then in step S102, obtain the live width of netting twine in the printed circuit layout again, wherein this netting twine is the weld pad described in the Connection Step S101.Then, shown in step S103, whether the live width that can judge netting twine is greater than the width of weld pad.If the live width of netting twine is greater than the width of weld pad, that is the judged result of step S103 can be "No", then do not adjust the live width of netting twine.If the live width of netting twine is greater than the width of weld pad, that is the judged result of step S103 can be "Yes", and then execution in step S105 is the width of weld pad with the live width of adjusting netting twine.Wherein, the action of the live width of adjustment netting twine can be set for the live width in the attribute of network wire in the utilization modification computer aided design software and carry out.
For instance, Fig. 2 is the preceding schematic layout pattern of live width adjustment of one embodiment of the invention.Please refer to Fig. 2, the netting twine of different decorative patterns is the netting twine that is distributed in different layers among the figure, and the netting twine 201,202 of check design and 203 is for being distributed in weld pad 211,212 and 213 same one decks, so that netting twine 201,202 and 203 can be connected to weld pad 211,212 and 213 respectively.Weld pad 211,212 and 213 has width W separately
P1, W
P2And W
P3In the present embodiment, weld pad 211,212 and 213 is in order to the different pins in the welding identity element, so the width W of weld pad 211,212 and 213 in circuit
P1, W
P2And W
P3All can equate.As shown in the figure, the live width of netting twine 201 is greater than the width W of the weld pad 211 that it connected
P1, and the live width of netting twine 202 is greater than the width W of the weld pad 212 that it connected
P2So detecting to weld pad 211 and 212 o'clock, because the live width of its netting twine that is connected separately 201 and 202 is all greater than the width W of weld pad 211 and 212
P1And W
P2, so the live width of netting twine 201 can be set at the width W of weld pad 211
P1, and the width W that 202 live width of netting twine is set at weld pad 212
P2
When detecting to weld pad 213, because of the live width of the netting twine 203 that it connected not greater than its width W
P3So, in the live width and the width W that compare netting twine 203
P3After, the live width of netting twine 203 is not adjusted.And the weld pad 214 in the diagram does not connect any netting twine, so this method can be ignored weld pad 214 and not detect.Its live width adjustment result later as shown in Figure 3, Fig. 3 is the adjusted schematic layout pattern of the live width of one embodiment of the invention.Please refer to Fig. 3, as shown in the figure, the live width of netting twine 201 can be adjusted into the width W with weld pad 211
P1The same.And the live width of netting twine 202 can be adjusted into the width W with weld pad 212
P2The same.And Fig. 2 and Fig. 3 layout is different slightly, after the live width that is still netting twine is adjusted, reload to the printed circuit layout due to.
What deserves to be mentioned is that the printed circuit layout can carry out the adjustment of live width again after layout is finished,, adjust the live width of netting twine simultaneously according to the step of present embodiment so that weld pads all in the printed circuit layout is detected.In addition, also can when connecting up, adjust the netting twine live width, in wiring, weld pad be detected, and carry out the adjustment of live width according to the step of present embodiment.And the form that present embodiment can computer program realizes that to move, wherein computer aided design software for example is POWER PCB, Allegro or Mentor in computer aided design software.
And the adjustment of netting twine in the printed circuit layout, be can not make when allowing the circuit board etching to produce the incomplete situation of etching between weld pad, so can only adjust the live width of the part line segment (segment) of that end that netting twine is connected with weld pad, below carry another Real again to execute example bright to be Geng Details Do De Said.Fig. 4 is the method flow diagram of the automatic adjustment live width of another embodiment of the present invention.Please refer to Fig. 4, in the present embodiment, at first in step S401, can obtain the width of weld pad in the printed circuit layout equally earlier.Then in step S402, can obtain the kenel of the netting twine that is connected with above-mentioned weld pad.In step S403,, obtain the live width of netting twine then according to the kenel of above-mentioned netting twine.Execution in step S404 after the live width of the width of obtaining weld pad and netting twine, with the live width of judging netting twine whether greater than the width of weld pad.If the live width of netting twine is greater than the width of weld pad, that is the judged result of step S404 is "No", and execution in step S405 does not then adjust the live width of netting twine.
If the live width of netting twine is greater than the width of weld pad, that is the judged result of step S404 is "Yes", then execution in step S406 then, and whether be positioned at the weld pad with the line segment of judging netting twine is the preset length of starting point.If it is the preset length of starting point that the line segment of netting twine is positioned at the weld pad, that is the judged result of step S406 is "Yes", and then execution in step S407 is the width of weld pad with the live width of adjusting netting twine line segment in preset length.If it is outside the preset length of starting point that the line segment of netting twine is positioned at the weld pad, that is the judged result of step S406 is "No", and then execution in step S408 does not adjust the live width of the outer line segment of preset length.
For instance, in the printed circuit layout, can set its live width to the netting twine kenel (net type) of special netting twine, for example the live width of power lead is set at 25 mils, and the live width of ground wire is set at 30 mils.Illustrate referring again to Fig. 2, in the width W of this weld pad 211,212,213
P1, W
P2And W
P3For example be all 23 mils.And netting twine 201 for example is a ground wire, and netting twine 202 for example is a power lead, therefore can learn that by the kenel of netting twine the live width of netting twine 201 is 30 mils, and the live width of netting twine 202 is 25 mils.And netting twine 203 for example is general circuit, and its live width for example is 15 mils.When present embodiment detected to weld pad 213, because of the live width of connected netting twine 203 is 15 mils, width 23 mils than weld pad 213 were not big, so can not adjust the live width of netting twine 203.
When present embodiment detected weld pad 211 and 212, the live width of netting twine 201 was 30 mils, and the live width of netting twine 202 is 25 mils, all was greater than 23 mils ( weld pad 211 and 212 width), so can adjust the live width of netting twine 201 and 202.Can be starting point with the abutment of netting twine and weld pad then, judge netting twine 201 and 202 which line segment in preset length, it be 23 mils that the line segment in these preset length is adjusted its live width, and wherein preset length for example is 40 mils.Therefore, netting twine 201 is a starting point at the abutment with itself and weld pad 211, the line segment of the length of netting twine 201 in 40 mils, and its live width all can be adjusted to 23 mils.Similarly, netting twine 202 is a starting point at the abutment with itself and weld pad 212, the line segment of the length of netting twine 202 in 40 mils, and its live width can be adjusted to 23 mils all equally.And netting twine 201 and 202 is a starting point at the abutment with itself and weld pad, and the line segment outside length 40 mils then keeps original live width, does not adjust.
Its live width adjustment result later as shown in Figure 5, Fig. 5 is the adjusted schematic layout pattern of the live width of another embodiment of the present invention.Please refer to Fig. 5, as shown in the figure, netting twine 201 is example with the abutment of weld pad 211 with abutment C 1, and the abutment of netting twine 202 and weld pad 212 is an example with abutment C2.Netting twine 201 is a starting point with abutment C1, and the live width of line segment can be adjusted into the width W with weld pad 211 in preset length d1
P1The same, wherein preset length d1 for example is 40 mils.Netting twine 202 is a starting point with abutment C2, and the live width of line segment can be adjusted into the width W with weld pad 212 in preset length d1
P2The same.And the line segment of netting twine 201 and 202 outside preset length d1, its live width can keep original live width.Whereby, only can adjust the live width of the line segment in the preset length that netting twine is starting point with the weld pad, and can not adjust the live width of whole piece netting twine.
In sum, the foregoing description is adjusted the method for live width automatically in the printed circuit layout, and it determines whether adjusting the netting twine live width via comparing weld pad width and netting twine live width, has influence on the etching of circuit board to avoid excessive live width.And, whether in preset length, determine whether adjusting the live width of netting twine line segment via the line segment of judging netting twine, therefore can only adjust near the live width of the netting twine line segment weld pad, need not adjust the live width of whole piece netting twine, to avoid having influence on the layout of printed circuit layout integral body.Whereby, can avoid manually because of repeating to adjust the time waste that live width causes, to improve the work efficiency of layout.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the structure that can utilize above-mentioned announcement and technology contents are made a little change or be modified to the equivalent embodiment of equivalent variations, but every content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (5)
1, adjust the method for live width in a kind of printed circuit layout automatically, it is characterized in that the method for described automatic adjustment live width comprises:
Obtain the width of weld pad in the printed circuit layout;
Obtain the live width of netting twine in this printed circuit layout, wherein this netting twine connects this weld pad;
Whether the live width of judging this netting twine is greater than the width of this weld pad;
If the live width of this netting twine, is then adjusted the width of the live width of this netting twine for this weld pad greater than the width of this weld pad; And
If the live width of this netting twine is not then adjusted the live width of this netting twine not greater than the width of this weld pad.
2, the method for automatic adjustment live width according to claim 1 is characterized in that its step that obtains the width of this netting twine comprises:
Obtain the kenel of this netting twine; And
According to this kenel, obtain the live width of this netting twine.
3, the method for automatic adjustment live width according to claim 1 is characterized in that the method for described automatic adjustment live width more comprises:
Whether the line segment of judging this netting twine is positioned at this weld pad is the preset length of starting point.
4, the method for automatic adjustment live width according to claim 3, the live width that it is characterized in that described this netting twine of adjustment are that the step of the width of this weld pad comprises:
If it is the preset length of starting point that the line segment of this netting twine is positioned at this weld pad, then adjust the width of the live width of this line segment for this weld pad.
5, the method for automatic adjustment live width according to claim 3 is characterized in that the method for described automatic adjustment live width more comprises:
Be outside the preset length of starting point, then do not adjust the live width of this line segment if the line segment of this netting twine is positioned at this weld pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810160909A CN101673310A (en) | 2008-09-11 | 2008-09-11 | Method for automatically regulating line width |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810160909A CN101673310A (en) | 2008-09-11 | 2008-09-11 | Method for automatically regulating line width |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101673310A true CN101673310A (en) | 2010-03-17 |
Family
ID=42020533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810160909A Pending CN101673310A (en) | 2008-09-11 | 2008-09-11 | Method for automatically regulating line width |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101673310A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108229008A (en) * | 2017-12-29 | 2018-06-29 | 深圳市兴森快捷电路科技股份有限公司 | A kind of cabling based on Allegro softwares changes layer and line width adjustment method |
| CN114327112A (en) * | 2020-09-30 | 2022-04-12 | 宸美（厦门）光电有限公司 | Electronic device and method for manufacturing electronic device |
-
2008
- 2008-09-11 CN CN200810160909A patent/CN101673310A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108229008A (en) * | 2017-12-29 | 2018-06-29 | 深圳市兴森快捷电路科技股份有限公司 | A kind of cabling based on Allegro softwares changes layer and line width adjustment method |
| CN114327112A (en) * | 2020-09-30 | 2022-04-12 | 宸美（厦门）光电有限公司 | Electronic device and method for manufacturing electronic device |
| CN114327112B (en) * | 2020-09-30 | 2024-06-18 | 宸美（厦门）光电有限公司 | Electronic device and method for manufacturing the same |
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Open date: 20100317 |