CN106446429A - Method for partitioning complicated plane of printed circuit board - Google Patents
Method for partitioning complicated plane of printed circuit board Download PDFInfo
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- CN106446429A CN106446429A CN201610868534.5A CN201610868534A CN106446429A CN 106446429 A CN106446429 A CN 106446429A CN 201610868534 A CN201610868534 A CN 201610868534A CN 106446429 A CN106446429 A CN 106446429A
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- plane
- printed circuit
- circuit board
- copper
- shape
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/30—Circuit design
- G06F30/39—Circuit design at the physical level
- G06F30/392—Floor-planning or layout, e.g. partitioning or placement
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Architecture (AREA)
- Evolutionary Computation (AREA)
- Geometry (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing Of Printed Wiring (AREA)
- Structure Of Printed Boards (AREA)
Abstract
The invention provides a method for partitioning a complicated plane of a printed circuit board. The method comprises the steps of setting an artwork mode, defining an original plane, partitioning the plane, smoothly processing the plane and outputting a substrate. The partitioning method can rapidly and accurately partition the complicated plane, is easy in operation, produces small errors and is suitable for printed circuit boards complicated in plane structure and having high impedance, anti-interference and performance requirements.
Description
Technical field
The present invention relates to printed circuit board (PCB) plane segmentation field, in particular to a kind of printed circuit board complex plane point
Segmentation method.
Background technology
In Printed Circuit Board Design, need before circuit board wiring according to different networks, impedance, component locations etc. because
Element, segmentation printed circuit board plane simultaneously applies copper.
The purpose that copper is split and applied to plane includes：1. connect consolidated network, reduce loop area；2. reduce impedance, increase
Function of shielding, improves the capacity of resisting disturbance of imposite；3. reduce pulse induction pressure drop, improve power-efficient；4. numerical model analysis are reduced
The common resistance interference to analog circuit for the digital circuit switching noise in the printed circuit board of circuit；5. increase printed circuit board hardness and
Heating surface area.
The bypass loop inductance increasing after plane segmentation can extend the circuit rise time, aggravation crosstalk even causes resonance；
The electromagnetic radiation of increased bypass loop meeting increasing circuit.And accurately plane dividing method can reduce increased bypass loop pair
The impact of circuit.
The general closed planar split-run of existing printed circuit board generally uses adds shape with newly-increased in flat outer
The method of Different Plane, for the plane being included in physical form and electrical characteristic complexity in original plane, is needed using the method
Carry out repeated segmentation, the operation drawn new shape, merge peripheral planar, complex operation, step are many, efficiency is low.Justify for existing
The plane of arc, when being split how by the way of drafting polygon carrys out simulation arc, often leads to planar boundary and there is burr,
The impact accuracy of manufacture and performance.
For meeting the needs of prior art development, simplify operating procedure, improve operating efficiency, it is desirable to provide a kind of printing electricity
The dividing method of the complex plane of road plate.
Content of the invention
For meeting the Accurate Segmentation of the prior art original plane complicated to physical form and electrical characteristic, improve operation effect
Rate, the present invention provides a kind of dividing method of complex plane.
The complex plane dividing method of the printed circuit board that the present invention provides, it thes improvement is that, methods described includes：
(1) artwork pattern is set；
(2) draw original plane；
(3) segmentation plane；
(4) smoothing processing plane；
(5) export egative film.
Further, the artwork pattern of described step (1) includes：Positive tablet mode and negative film pattern；
Artwork pattern is arranged according to file type：
(1-1) when egative film is with Gerber RS274X file format, according to reference radiographs type and wiring, resistance value and
Artwork pattern is selected in the requirement of radiating condition；
(1-2) when egative film is with Geber6x00 or Gerber4x00 file format, artwork pattern selects positive tablet mode.
Further, described step (2) defines original plane method and includes：
Draw original plane with the method adding shape；Or, it is original flat to have drawn arbitrary shape with Z-COPY order duplication
Face；
When original plane comprises circular arc, after ad-hoc location adds circle, it is merged with other shapes in original plane.
Further, the segmentation of described step (3) complex plane includes：
(3-1), before splitting, original plane place layer choosing is to enliven subclass Active Subclass, and shape filling mode is
Dynamically apply copper, and distribute network to other planes；
(3-2), when splitting, draw polygon plane border in original plane with the method adding shape；
(3-3) after splitting, the Edit Boundary order of executive editor border：By pedometer user-defined during PCB design
Then adjust automatically polygon plane border.
Further, the dividing method comprising other planes of circular arc includes：
1) radius and the central coordinate of circle of circular arc are calculated；
2) Route Keepin or Route Keepout order are selected according to circular arc and other flat relations of plane；
3) successively draw circular arc and polygon forms end to end closed loop；
4) it is switched to other planes, and with adding order middle other planar boundaries of drafting at the regional level of shape.
Further, described step (4) includes：
(4-1) automatically fill and hollow out deposited copper region, and update defined shape；
(4-2) check lonely copper：If positive, then execute lonely copper inspection；Otherwise execute negative plane orphan's copper inspection；
(4-3) lonely copper the affected boundary shape of smoothing processing are deleted.
Further, described step (5) includes：
(5-1) choose the respective layer that egative film controls printed circuit board in window, and contextual model plot mode is set as
The deposited copper pattern selected；
(5-2) create artwork, consult report file, preserve output egative film.
With immediate prior art ratio, the present invention has following excellent effect：
(1) method that the technical scheme that the present invention provides solves using cut-off rule or adds shape outside original plane
The problem of other planes once cannot be gone out in original plane inside division, solve the paving copper being led to polygon simulation circular arc and put down
The problem of face burr, improves the work efficiency of complex plane segmentation.
(2) dividing method in the present invention fast and accurately can split complex plane, simple to operate, and error is little, is suitable for flat
Face complex structure, impedance, the anti-interference printed circuit board having high demands.
(3) technical scheme that the present invention provides is when the border of other planes needs adjustment, original plane and other planes
Boundary can carry out self adaptation and dynamically adjust according to the spacing rule setting, decrease the workload of manual setting, be greatly improved
The precision of segmentation.
Brief description
Fig. 1 applies copper region prominent example schematic diagram for the original plane that the present invention provides；
The original plane that Fig. 2 provides for the present invention comprises the deposited copper region prominent example schematic diagram of circular arc；
The design flow diagram that Fig. 3 provides for the present invention.
Specific embodiment
Below with reference to brief description, the technical scheme that the present invention is provided is further described in detail.
The present invention provides a kind of printed circuit board complex plane dividing method, and the complex plane said is specially：Multiple flat
Geographically there is inclusion relation in face, that is, in multiple planes, at least one plane is comprised in the Fu Tong area of original plane
In domain, it is illustrated in figure 1 typical complex plane, other planes are included in original plane region.
Dividing method of the present invention does not limit PCB design instrument, for clearly introducing technical scheme,
It is described as a example the basis of PCB layout software Allegro application, Allegro is the PCB design work that Cadebce company releases
Tool, there is provided good interface management and powerful wiring function, the setting such as Fig. 3 in the dividing method of the present invention and deposited copper region
Flow chart shown in, the present invention provide dividing method include：
(1) the artwork pattern of complex plane is set；
Artwork pattern is the group image draft used required for printed circuit, can be divided into positive form and negative film
Form, positive form will have visuals to be depicted as black, not have visuals to be depicted as blank；Negative film form will have figure portion
Divide and be depicted as white, do not have visuals to be depicted as black.
When arranging the artwork pattern of complex plane, first determine whether that complex plane adopts positive or negative film pattern；Work as print
That this layer of egative film of circuit board processed is selected is Gerber RS274X, the pattern of complex plane select reference radiographs type and wiring,
Impedance, radiating etc. require；When being Geber6x00 or Gerber4x00 of this layer of egative film selection of printed circuit board, complicated flat
Face can only adopt positive tablet mode.
The artwork pattern of this layer is set according to above-mentioned judged result.
(2) define the original plane of printed circuit board；
To draw original plane in printed circuit board certain layer by the way of adding shape, if original plane comprises to justify
Arc, then instructed itself and other shapes in original plane using Shape Merge Shapes after ad-hoc location need to add circle
Merge.In printed circuit board certain layer using drafting shape, or using Z-COPY order, replicate the shape of other layers drafting
The method of shape is defining original plane.
(3) other planes are split on original plane；
The step of segmentation plane includes：
(3-1), before splitting, active subclass Active Subclass is elected as original plane place layer, shape filling side
Formula selects dynamically to apply copper, distributes network to other planes simultaneously.
(3-2), when splitting, in the inside of original plane, one polygon, this polygon are drawn using the method adding shape
It is the border of other planes.
If other planes comprise circular arc, as shown in Fig. 2 then method for drafting includes：
1) need to precompute the radius of circular arc and the coordinate in the center of circle.
2) use Setuo Areas Route Keepin (selecting Route Keepout when other planes are outside circular arc),
The type selecting Segment Type in Options option is Arc.
3) draw circular arc in original plane, after the completion of arc drafting, draw polygon again.
It should be noted that polygon and circular arc need to form end to end closed loop, and circular arc portion is removed on this closed loop border
Outward, other parts all should be greater than the border of other planes.
4) Active Class and Subclass is switched to other plane place layers, using the order adding shape
Draw other in (other planes outside circular arc when outside the scope of Route Keepout) in the range of Route Keepin to put down
Face, for circular arc portion, border should exceed the border of Route Keepin (in Route when other planes are outside circular arc
In the border of Keepout).
(3-3), after splitting, need to adjust the boundary of other planes and original plane, executive editor border Edit
Boundary order.When editing other planar boundaries, according to spacing rule adjust automatically user-defined during PCB design.
(4) plane is smoothed and deletes lonely copper；
It is completing after PCB applies copper, isolated, do not have and the copper that couples together of GND of circuit is known as dead copper or lonely copper,
These copper can only make decoration to PCB and use, and do not have much actual meaning, check lonely copper and delete as making plank more neat and artistic,
First copper is spread to PCB, be smoothed, set the dynamic filling mode of shape as smooth, make deposited copper region automatic
Fill and hollow out, then update defined shape.Then execute the lonely copper inspection of this layer, wherein, for from negative film pattern
Layer, carry out negative plane orphan's copper inspection.Delete the lonely copper checking, affected partial shape is carried out again with smooth place simultaneously
Reason.
(5) export egative film.
Control, in egative film, the respective layer choosing printed circuit board in window, set contextual model plot mode as step one
The deposited copper pattern of middle selection.Create artwork, and consult report file, finally preserve egative film.
Above example is only not intended to limit in order to technical scheme to be described, although with reference to above-described embodiment pair
The present invention has been described in detail, and those of ordinary skill in the art still can enter to the specific embodiment of the present invention
Row modification or equivalent, these without departing from any modification of spirit and scope of the invention or equivalent, all in application
Within the claims of the pending present invention.
Claims (7)
1. a kind of dividing method of printed circuit board complex plane is it is characterised in that methods described includes：
(1) artwork pattern is set；
(2) draw original plane；
(3) segmentation plane；
(4) smoothing processing plane；
(5) export egative film.
2. printed circuit board complex plane dividing method as claimed in claim 1 is it is characterised in that described step (1)
Artwork pattern includes：Positive tablet mode and negative film pattern；
Artwork pattern is arranged according to file type：
(1-1) when egative film is with Gerber RS274X file format, according to reference radiographs type and wiring, resistance value and radiating
Artwork pattern is selected in the requirement of condition；
(1-2) when egative film is with Geber6x00 or Gerber4x00 file format, artwork pattern selects positive tablet mode.
3. printed circuit board complex plane dividing method as claimed in claim 1 is it is characterised in that described step (2) defines
Original plane method includes：
Draw original plane with the method adding shape；Or, replicated with Z-COPY order having drawn arbitrary shape original plane；
When original plane comprises circular arc, after ad-hoc location adds circle, it is merged with other shapes in original plane.
4. printed circuit board complex plane dividing method as claimed in claim 1 is it is characterised in that described step (3) is complicated
The segmentation of plane includes：
(3-1), before splitting, original plane place layer choosing is to enliven subclass Active Subclass, and shape filling mode is dynamic
Deposited copper, and distribute network to other planes；
(3-2), when splitting, draw polygon plane border in original plane with the method adding shape；
(3-3) after splitting, the Edit Boundary order of executive editor border：By spacing rule user-defined during PCB design certainly
Dynamic adjustment polygon plane border.
5. printed circuit board complex plane dividing method as claimed in claim 4 it is characterised in that comprise circular arc other put down
The dividing method in face includes：
1) radius and the central coordinate of circle of circular arc are calculated；
2) Route Keepin or Route Keepout order are selected according to circular arc and other flat relations of plane；
3) successively draw circular arc and polygon forms end to end closed loop；
4) it is switched to other planes, and with adding order middle other planar boundaries of drafting at the regional level of shape.
6. printed circuit board complex plane dividing method as claimed in claim 1 is it is characterised in that described step (4) includes：
(4-1) automatically fill and hollow out deposited copper region, and update defined shape；
(4-2) check lonely copper：If positive, then execute lonely copper inspection；Otherwise execute negative plane orphan's copper inspection；
(4-3) lonely copper the affected boundary shape of smoothing processing are deleted.
7. printed circuit board complex plane dividing method as claimed in claim 1 is it is characterised in that described step (5) includes：
(5-1) choose the respective layer that egative film controls printed circuit board in window, and contextual model plot mode is set as selecting
Fixed deposited copper pattern；
(5-2) create artwork, consult report file, preserve output egative film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610868534.5A CN106446429B (en) | 2016-09-29 | 2016-09-29 | Method for dividing complex plane of printed circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610868534.5A CN106446429B (en) | 2016-09-29 | 2016-09-29 | Method for dividing complex plane of printed circuit board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106446429A true CN106446429A (en) | 2017-02-22 |
| CN106446429B CN106446429B (en) | 2023-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610868534.5A Active CN106446429B (en) | 2016-09-29 | 2016-09-29 | Method for dividing complex plane of printed circuit board |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107729689A (en) * | 2017-11-09 | 2018-02-23 | 郑州云海信息技术有限公司 | A kind of design method for realizing arc-shaped frame between sheet frame and coupon |
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| JP2001308545A (en) * | 2000-04-10 | 2001-11-02 | Yoshi Kobunshi:Kk | Manufacturing device of printed circuit board and manufacturing method thereof |
| CN1437436A (en) * | 2002-02-04 | 2003-08-20 | 华为技术有限公司 | Circuit board design method |
| CN1437437A (en) * | 2002-02-04 | 2003-08-20 | 华为技术有限公司 | Copper-cladding method in circuit board design |
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| US20040245011A1 (en) * | 2003-06-03 | 2004-12-09 | Amparan Alfonso Benjamin | Power plane splitting using a contour method |
| US20050022149A1 (en) * | 2003-07-25 | 2005-01-27 | Mentor Graphics Corporation | Generating a split power plane of a multi-layer printed circuit board |
| WO2005038711A1 (en) * | 2003-10-17 | 2005-04-28 | Koninklijke Philips Electronics, N.V. | Manual tools for model based image segmentation |
| TW200538919A (en) * | 2004-05-21 | 2005-12-01 | Hon Hai Prec Ind Co Ltd | System and method for checking split plane of motherboard layout |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107729689A (en) * | 2017-11-09 | 2018-02-23 | 郑州云海信息技术有限公司 | A kind of design method for realizing arc-shaped frame between sheet frame and coupon |
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| Publication number | Publication date |
|---|---|
| CN106446429B (en) | 2023-07-21 |
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