CN104424376A - Wiring method - Google Patents
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- CN104424376A CN104424376A CN201310410952.6A CN201310410952A CN104424376A CN 104424376 A CN104424376 A CN 104424376A CN 201310410952 A CN201310410952 A CN 201310410952A CN 104424376 A CN104424376 A CN 104424376A
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Abstract
The invention relates to a wiring method. The wiring method is applied to a printed circuit pattern, wherein the printed circuit pattern is provided with a contact array area which comprises a plurality of first contacts. The wiring method comprises the following steps: providing a plurality of first intersecting points, wherein each first intersecting point is the point of intersection of a lead from a corresponding first intersecting point and a small circle, and the contact array area is located in the small circle; providing a plurality of second intersecting points, wherein each second intersecting point is the point of intersection of a line extending towards the contact array area from the outside of a big circle and the big circle, the big circle and the small circle are concentric circles, and the big circle is bigger than the small circle; selecting one of the first intersecting points, and connecting the selected first intersecting point and the corresponding second intersecting point which is closest to the selected first intersecting point; selecting the next first intersecting point, and connecting the selected first intersecting point and the corresponding second intersecting point, which is closest to the selected first intersecting point, in the remaining second intersecting points, so as to enable all the first intersecting points and all the second intersecting points to be connected.
Description
Technical field
The present invention relates to a kind of wiring method, particularly a kind of wiring method being applied to the design of printed circuit pattern.
Background technology
In general, the making of printed circuit board (PCB) (Printed Circuit Board, PCB) can first carry out circuit layout (Layout), to produce layout usually.Further, along with integrated level is more and more higher, present electronic component is mostly packaged together, especially of the same type, to make the configurable more electronic component of printed circuit board (PCB).Such as several resistance is packaged together side by side, several electric capacity is packaged together side by side, a lot of switch is packaged together side by side, and large amount of complex can programmed logic element (Complex ProgrammableLogic Device, CPLD) I/O (I/O) interface encapsulation together.
In order to allow these electronic component phase interworkings, layout engineer can connect up on a printed circuit, to be connected by corresponding electronic component.But because the electronic component on printed circuit board (PCB) is more, by making, the circuit connecting these electronic components is also more complicated, if therefore the situation of intersecting occurs for two circuits, just can only connect up through the mode of going in the mode of wire jumper or with perforation.So, not only make the quality of the Signal transmissions of circuit itself decline, also can produce bad impact, as signal disturbing etc. to ambient signal.Therefore, the space that is still improved of the wiring of printed circuit board (PCB).
Summary of the invention
The object of the present invention is to provide a kind of wiring method, use and avoid or reduce circuit and produce and intersect, and the signal quality of circuit own is declined, and the bad impact such as signal disturbing is produced on ambient signal.
The invention provides a kind of wiring method, be applied to the design of printed circuit pattern, and this printed circuit pattern has the crosspoint array region of corresponding ball lock array of packages, and this crosspoint array region comprises multiple first contact.Wiring method comprises the following steps.There is provided multiple first intersection point, wherein each first intersection point is the intersection point of an a plurality of leads and roundlet of drawing outside crosspoint array region from each first contact, this roundlet with the center in crosspoint array region for the center of circle and crosspoint array region be within roundlet.Multiple second intersection point is provided, wherein each second intersection point is the intersection point of many circuits and this great circle extended from the export-oriented crosspoint array region of a great circle, and the first contact is suitable for connecting one to one with arbitrary pair relationhip with circuit, great circle and roundlet is concentric circles and great circle is greater than roundlet.Select the first intersection point one of them, and connect the second nearest intersection point of the first intersection point that the first intersection point of choosing and distance choose.Select next first intersection point, and connect next first intersection point and nearest the second intersection point of next first intersection point of remaining second intersection point middle distance.Repeatedly repeat previous step, each first intersection point and each second intersection point are connected respectively.
In one embodiment, aforementioned selection first intersection point one of them be adopt the mode of Stochastic choice to select.
In one embodiment, next first intersection point of aforementioned selection adopts the mode of Stochastic choice to select.
In one embodiment, next first intersection point of aforementioned selection selects next first intersection point successively along a direction, and this direction is counter clockwise direction along roundlet circumference or clockwise direction.
In one embodiment, multiple first coordinates of the coordinate system that aforementioned first intersection point formation is origin of coordinate with crosspoint array regional center, second intersection point forms multiple second coordinates of coordinate system, one of them from the first coordinate, obtains one first coordinate with a minimum weight value select to select the first intersection point, and weighted value is the summation that First target X-axis coordinate values adds First target Y-axis coordinate values.
A kind of wiring method, be applied to the design of printed circuit pattern, this printed circuit pattern has the crosspoint array region of corresponding ball lock array of packages, and this crosspoint array region comprises multiple first contact.Wiring method comprises the following steps.There is provided multiple first intersection point, wherein each first intersection point is the intersection point of an a plurality of leads and roundlet of drawing outside crosspoint array region from each first contact, roundlet with the center in crosspoint array region for the center of circle and crosspoint array region be within roundlet.Multiple second intersection point is provided, wherein each second intersection point is the intersection point of many circuits and this great circle extended from the export-oriented crosspoint array region of a great circle, first contact is suitable for connecting one to one with arbitrary pair relationhip with circuit, great circle and roundlet is concentric circles and great circle is greater than roundlet.Select the second intersection point one of them, and connect the first nearest intersection point of the second intersection point that the second intersection point of choosing and distance choose.Select next second intersection point, and connect next second intersection point and nearest the first intersection point of next second intersection point of remaining first intersection point middle distance.Repeatedly repeat previous step, each second intersection point and each first intersection point are connected respectively.
In one embodiment, aforementioned selection second intersection point one of them be adopt the mode of Stochastic choice to select.
In one embodiment, next second intersection point of aforementioned selection adopts the mode of Stochastic choice to select.
In one embodiment, next second intersection point of aforementioned selection selects next second intersection point successively along a direction, and this direction is counter clockwise direction along roundlet circumference or clockwise direction.
In one embodiment, multiple first coordinates of the coordinate system that aforementioned first intersection point formation is origin of coordinate with crosspoint array regional center, second intersection point forms multiple second coordinates of coordinate system, one of them from the second coordinate, obtains second coordinate with minimum weight value select to select the second intersection point, and weighted value is the summation that the X-axis coordinate values of the second coordinate adds the Y-axis coordinate values of the second coordinate.
Wiring method disclosed by the present invention, to be connected with the first contact by lead-in wire by providing and to be positioned at multiple first intersection points on roundlet, and being positioned at multiple second intersection points in great circle, wherein great circle and roundlet is concentric circles and great circle is greater than roundlet.Then, select the first intersection point one of them, and connect the second intersection point that the first intersection point that the first intersection point of choosing and distance choose is nearest, sequentially select next first intersection point again, and connect next first intersection point and nearest the second intersection point of next first intersection point of remaining second intersection point middle distance, until each first intersection point and each second intersection point are connected respectively.Thus, can produce and intersect by the circuit effectively avoided or reduce between the first intersection point with the second intersection point, and the signal quality of circuit own is declined, and the bad impact such as signal disturbing is produced on ambient signal.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of wiring method of the present invention;
Fig. 2 is that the one of printed circuit pattern of the present invention implements example;
Fig. 3 is another process flow diagram of wiring method of the present invention.
Wherein, Reference numeral
200 printed circuit patterns
210 crosspoint array regions
211,212,213,214,215,216 first contacts
221,222,223,224,225,226 first intersection points
231,232,233,234,235,236 lead-in wires
240 roundlets
251,252,253,254,255,256 second intersection points
261,262,263,264,265,266 circuits
270 great circles
280 origin of coordinates
281,282,283,284,285,286 lines
Embodiment
Below in conjunction with accompanying drawing, structural principle of the present invention and principle of work are described in detail:
Please refer to shown in Fig. 1, Fig. 2, it is the process flow diagram of wiring method of the present invention, the one enforcement example of printed circuit pattern.The wiring method of the present embodiment such as can be applicable to the design of printed circuit pattern 200.Further, this printed circuit pattern 200 has the crosspoint array region 210 of corresponding ball lock array of packages (Ball Grid Array, BGA), and crosspoint array region 210 has multiple first contact 211,212,213,214,215,216.Wherein, the some similar pin of the corresponding ball lock array of packages of the first contact 211,212,213,214,215,216, and these pin performances are identical and can exchange, namely these pins are the same for the connecting line outside ball lock array of packages, are suitable for an optional wherein pin and connect.
When some connecting lines are for connect corresponding with these pins, although can random pair, obtain the line length that a comparatively preferred pair relationhip is conducive to reducing these connecting lines and the intersection reduced between these connecting lines.The invention provides a kind of wiring method, use the preferred pairing annexation obtained between many lines and multiple point.Further, in the present embodiment, the quantity of the first contact is for 6, but the present invention is not limited thereto, and the quantity of the first contact can be more than 2,3,4,5 or 6, and user's its demand visual is from Row sum-equal matrix.
In step s 110, provide multiple first intersection point, such as the first intersection point 221,222,223,224,225,226.Wherein, each first intersection point 221,222,223,224,225,226 is the intersection points of multiple lead-in wires 231,232,233,234,235, a 236 and roundlet 240 of drawing outside crosspoint array region 210 from each first contact 211,212,213,214,215,216.And roundlet 240 with the center in crosspoint array region 210 for the center of circle, and crosspoint array region 210 is within roundlet 200.
In the step s 120, multiple second intersection point 251,252,253,254,255,256 is provided.Wherein, each second intersection point 251,252,253,254,255,256 is the intersection points of many circuits 261,262,263,264,265,266 and this great circle 270 extended from the export-oriented crosspoint array region 210 of a great circle 270.Further, the first contact 211,212,213,214,215,216 is suitable for connecting one to one with arbitrary pair relationhip with circuit 261,262,263,264,265,266.The corresponding aforesaid connecting line of circuit 261,262,263,264,265,266, obtains the preferred pair relationhip of circuit 261,262,263,264,265,266 and first contact 211,212,213,214,215,216 with wiring method of the present invention.In the present embodiment, great circle 270 and roundlet 240 are such as concentric circles, and great circle 270 is greater than roundlet 240.
In step s 130, which, select the first intersection point 221,222,223,224,225,226 one of them, such as the first intersection point 221.Further, the second intersection point that the first intersection point (the first intersection point 251) that the first intersection point (the first intersection point 251) of choosing and distance choose is nearest is connected, such as the second intersection point 251.In one embodiment, one of them is such as adopt the mode of Stochastic choice to select to select the first intersection point 221,222,223,224,225,226.Although the present embodiment first selects the first intersection point 221 to explain for example, the present invention is not limited thereto, the first intersection point 222 or the first intersection point 223 or the first intersection point 224 or the first intersection point 225 or the first intersection point 226 also first can be selected.
In another embodiment, first intersection point 221,222,223,224,225,226 of the present embodiment is formed with multiple first coordinates of center, crosspoint array region 210 coordinate system that is origin of coordinate 280.First coordinate of the first intersection point 221 correspondence is such as (-5,0), the first coordinate of the first intersection point 222 correspondence is such as (-4,2), first coordinate of the first intersection point 223 correspondence is such as (-5,-2), the first coordinate of the first intersection point 224 correspondence is such as (5,2), first coordinate of the first intersection point 225 correspondence is such as (5,0), the first coordinate of the first intersection point 226 correspondence is such as (4,2).Second intersection point 251,252,253,254,255,256 also forms multiple second coordinates of coordinate system.Further, one of them is from the first coordinate, obtain first coordinate with minimum weight value to select the first intersection point, and weighted value is the summation that First target X-axis coordinate values adds First target Y-axis coordinate values.
For example, the weighted value of the first intersection point 221 correspondence is such as-5+0=-5, the weighted value of the first intersection point 222 correspondence is such as-4+2=-2, the weighted value of the first intersection point 223 correspondence is such as-5+ (-2)=-7, the weighted value of the first intersection point 224 correspondence is such as 5+2=7, the weighted value of the first intersection point 225 correspondence is such as 5+0=5, and the weighted value of the first intersection point 226 correspondence is such as 4+2=6 wherein-7<-5<-2<5LEssT.LT ssT.LT6<7.It can thus be appreciated that the First of the first intersection point 223 correspondence is designated as first coordinate with little weighted value, therefore, one of them can prioritizing selection first intersection point 223 to select the first coordinate, to carry out follow-up process.Although the first intersection point 223 of illustrating is prioritizing selection herein, this is that one of the present invention implements example, not in order to limit the present invention.
In step S140, select next first intersection point, such as the first intersection point 222 or the first intersection point 223 or the first intersection point 224 or the first intersection point 225 or the first intersection point 226.Further, the second intersection point (the second intersection point 252,253,254,255,256) that next first intersection point (the first intersection point 222,223,224,225 or 226) is nearest with next first intersection point (the first intersection point 222,223,224,225 or 226) of remaining second intersection point (the second intersection point 252,253,254,255,256) middle distance is connected.
In one embodiment, next first intersection point is selected to be adopt the mode of Stochastic choice to select.That is, after being elected to the first intersection point 221, can then select the first intersection point 222 as next first intersection point, or select the first intersection point 223 as next first intersection point, or select the first intersection point 224 as next first intersection point, or select the first intersection point 225 as next first intersection point, or select the first intersection point 226 as next first intersection point.
In another embodiment, select next first intersection point to be select next first intersection point successively along a direction, and aforementioned direction is counter clockwise direction along roundlet 240 circumference or clockwise direction.If aforementioned direction is such as the counter clockwise direction along roundlet 240 circumference, after being elected to the first intersection point 221, can then select the first intersection point 223 as next first intersection point.On the other hand, if aforementioned direction is such as the clockwise direction along roundlet 240 circumference, after being elected to the first intersection point 221, can then select the first intersection point as next first intersection point.All the other are then analogized, to have continued to connect next first intersection point and nearest the second intersection point of the remaining second intersection point middle distance next one the first intersection point.
In step S150, repeatedly repeat step S140, each second intersection point 251,252,253,254,255,256 and each first intersection point 221,222,223,224,225,226 are connected respectively, that is, each second intersection point 251,252,253,254,255,256 carries out corresponding connection with each first intersection point 221,222,223,224,225,226 further by line 281,282,283,284,285,286.Thus, just the connection of all intersection points can be completed, produce intersect to avoid or to reduce each path (such as corresponding first contact 211, lead-in wire the 231, first intersection point 221, line 281, second intersection point 264 to circuit 261) of finally linking each first contact, and the line that wiring is occurred is less with intersecting of line.
In the present embodiment, the first contact, the first intersection point are mutually corresponding with the quantity of the second intersection point.That is, when the quantity of the first contact is 6, the quantity of the first intersection point and the second intersection point is also respectively 6; When the quantity of the first contact is 7, the quantity of the first intersection point and the second intersection point is also respectively 7.All the other are then analogized.
Above-described embodiment to select the first intersection point, then selects corresponding second intersection point, explains in the mode the first intersection point and the second intersection point are connected respectively.But the present invention is not limited thereto.Below, will separately lift one to illustrate.
Please refer to shown in Fig. 3, it is another process flow diagram of wiring method of the present invention.The wiring method of the present embodiment also can be applied to the design of printed circuit pattern 200 as Figure 2 illustrates.Further, this printed circuit pattern 200 has crosspoint array region 210, and crosspoint array region 210 has multiple first contact 211,212,213,214,215,216.In step S310, many first intersection points 221,222,223,224,225,226 are provided, wherein each first intersection point 221,222,223,224,225,226 is the intersection points of a plurality of leads 231,232,233,234,235, the 236 and roundlet 240 of drawing outside crosspoint array region 210 from each first contact 211,212,213,214,215,216, and this roundlet 240 with the center in crosspoint array region 210 for the center of circle, and crosspoint array region 210 is within roundlet 240.
In step s 320, multiple second intersection point 251 is provided, 252, 253, 254, 255, 256, wherein each second intersection point 251, 252, 253, 254, 255, 256 is many circuits 261 that a great circle 270 extends to crosspoint array region 210, 262, 263, 264, 265, 266 with the intersection point of this great circle 270, first contact 211, 212, 213, 214, 215, 216 are suitable for and circuit 261, 262, 263, 264, 265, 266 connect one to one with arbitrary pair relationhip, and great circle 270 and roundlet 240 are concentric circles, and great circle 270 is greater than roundlet 240.
In step S330, select the second intersection point 251,252,253,254,255,256 one of them, and connect the first nearest intersection point of the second intersection point that the second intersection point of choosing and distance choose.In one embodiment, one of them adopts the mode of Stochastic choice to select to select the second intersection point.In another embodiment, multiple first coordinates of the coordinate system that the first intersection point formation is origin of coordinate with crosspoint array regional center, the second intersection point forms multiple second coordinates of coordinate system.Further, one of them from the second coordinate, obtains one second coordinate with minimum weight value select to select the second intersection point, and weighted value is the summation that the X-axis coordinate values of the second coordinate adds the Y-axis coordinate values of the second coordinate.
In step S340, select next second intersection point, and connect next second intersection point and nearest the first intersection point of next second intersection point of remaining first intersection point middle distance.In one embodiment, next second intersection point is selected to be adopt the mode of Stochastic choice to select.In another embodiment, select next second intersection point to be select next second intersection point successively along a direction, this direction is such as counter clockwise direction along great circle circumference or clockwise direction.
In step S350, repeatedly repeat previous step S340, each second intersection point and each first intersection point are connected respectively.Further, the present embodiment still can be reached and avoid the circuit between the first intersection point with the second intersection point to produce intersecting, and the signal quality of circuit own is declined, and produces bad impact to ambient signal, such as signal disturbing etc.
In addition, the associative operation of the embodiment of Fig. 3, with reference to the explanation of the embodiment of figure 1, therefore can not repeat them here.
The wiring method that embodiments of the invention propose, it to be connected with the first contact by lead-in wire by providing and to be positioned at multiple first intersection points on roundlet, and is positioned at multiple second intersection points in great circle, wherein great circle and roundlet is concentric circles and great circle is greater than roundlet.Then, select the first intersection point one of them, and connect the second intersection point that the first intersection point that the first intersection point of choosing and distance choose is nearest, sequentially select next first intersection point again, and connect next first intersection point and nearest the second intersection point of next first intersection point of remaining second intersection point middle distance, until each first intersection point and each second intersection point are connected respectively.Thus, can produce and intersect by the circuit effectively avoided or reduce between the first intersection point with the second intersection point, and the signal quality of circuit own is declined, and the bad impact such as signal disturbing is produced on ambient signal.
Certainly; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection domain that all should belong to the claim appended by the present invention.
Claims (10)
1. a wiring method, is applied to the design of a printed circuit pattern, and this printed circuit pattern has a crosspoint array region of a corresponding ball lock array of packages, and this crosspoint array region comprises multiple first contact, it is characterized in that, this wiring method comprises:
Multiple first intersection point is provided, wherein respectively this first intersection point is the intersection point of an a plurality of leads and roundlet of drawing outside this crosspoint array region from each this first contact, this roundlet with the center in this crosspoint array region for the center of circle and this crosspoint array region is within this roundlet;
Multiple second intersection point is provided, wherein respectively this second intersection point is the intersection point of many circuits and this great circle extended from this crosspoint array region of extroversion of a great circle, those first contacts are suitable for connecting one to one with arbitrary pair relationhip with those circuits, and this great circle and this roundlet are concentric circles and this great circle is greater than this roundlet;
Select those first intersection points one of them, and connect this first intersection point chosen and this second intersection point nearest apart from this first intersection point chosen;
Select next first intersection point, and connect this next first intersection point and nearest this second intersection point of remaining this next first intersection point of those the second intersection point middle distances;
Repeatedly repeat previous step, respectively this first intersection point and each this second intersection point are connected respectively.
2. wiring method according to claim 1, is characterized in that, one of them adopts the mode of Stochastic choice to select to select those first intersection points.
3. wiring method according to claim 1, is characterized in that, selects next first intersection point to be adopt the mode of Stochastic choice to select.
4. wiring method according to claim 1, is characterized in that, selects next first intersection point to be select next first intersection point successively along a direction, and this direction is counter clockwise direction along roundlet circumference or clockwise direction.
5. wiring method according to claim 1, it is characterized in that, multiple first coordinates of the coordinate system that the formation of those first intersection points is origin of coordinate with this crosspoint array regional center, those second intersection points form multiple second coordinates of this coordinate system, one of them from those first coordinates, obtains one first coordinate with a minimum weight value select to select those first intersection points, and this weighted value is the summation that this First target X-axis coordinate values adds this First target Y-axis coordinate values.
6. a wiring method, is applied to the design of a printed circuit pattern, and this printed circuit pattern has a crosspoint array region of a corresponding ball lock array of packages, and this crosspoint array region comprises multiple first contact, it is characterized in that, this wiring method comprises:
Multiple first intersection point is provided, wherein respectively this first intersection point is the intersection point of an a plurality of leads and roundlet of drawing outside this crosspoint array region from each this first contact, this roundlet with the center in this crosspoint array region for the center of circle and this crosspoint array region is within this roundlet;
Multiple second intersection point is provided, wherein respectively this second intersection point is the intersection point of many circuits and this great circle extended from this crosspoint array region of extroversion of a great circle, those first contacts are suitable for connecting one to one with arbitrary pair relationhip with those circuits, and this great circle and this roundlet are concentric circles and this great circle is greater than this roundlet;
Select those second intersection points one of them, and connect this second intersection point chosen and this first intersection point nearest apart from this second intersection point chosen;
Select next second intersection point, and connect this next second intersection point and nearest this first intersection point of remaining this next second intersection point of those the first intersection point middle distances;
Repeatedly repeat previous step, respectively this second intersection point and each this first intersection point are connected respectively.
7. wiring method according to claim 6, is characterized in that, one of them adopts the mode of Stochastic choice to select to select those second intersection points.
8. wiring method according to claim 6, is characterized in that, selects next second intersection point to be adopt the mode of Stochastic choice to select.
9. wiring method according to claim 6, is characterized in that, selects next second intersection point to be select next second intersection point successively along a direction, and this direction is counter clockwise direction along this great circle circumference or clockwise direction.
10. wiring method according to claim 6, it is characterized in that, multiple first coordinates of the coordinate system that the formation of those first intersection points is origin of coordinate with this crosspoint array regional center, those second intersection points form multiple second coordinates of this coordinate system, one of them from those second coordinates, obtains one second coordinate with a minimum weight value select to select those second intersection points, and this weighted value is the summation that the X-axis coordinate values of this second coordinate adds the Y-axis coordinate values of this second coordinate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310410952.6A CN104424376A (en) | 2013-09-10 | 2013-09-10 | Wiring method |
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|---|---|---|---|
| CN201310410952.6A CN104424376A (en) | 2013-09-10 | 2013-09-10 | Wiring method |
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| CN104424376A true CN104424376A (en) | 2015-03-18 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8234615B2 (en) * | 2010-08-04 | 2012-07-31 | International Business Machines Corporation | Constraint programming based method for bus-aware macro-block pin placement in a hierarchical integrated circuit layout |
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2013
- 2013-09-10 CN CN201310410952.6A patent/CN104424376A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8234615B2 (en) * | 2010-08-04 | 2012-07-31 | International Business Machines Corporation | Constraint programming based method for bus-aware macro-block pin placement in a hierarchical integrated circuit layout |
Non-Patent Citations (2)
| Title |
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| H.N. BRADY: ""An Approach to Topological Pin Assignment"", 《IEEE TRANSACTIONS ON COMPUTER-AIDED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS》 * |
| NORMAN L. KOREN: ""Pin assignment in automated printed circuit board"", 《PROCEEDINGS OF THE 9TH DESIGN AUTOMATION WORKSHOP》 * |
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Application publication date: 20150318 |