JP3000799B2 - Printed wiring board wiring design equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring designing apparatus for designing a wiring route of a printed wiring board, and more particularly to a wiring designing apparatus for a printed wiring board capable of changing a component position after connection.

[0002]

2. Description of the Related Art As a conventional wiring designing apparatus for a printed wiring board, there is one having a configuration shown in FIG. This device operates
Command input means 13, wiring position data creation means 27, storage
It is composed of a circuit 17. The wiring example of the printed wiring board to be used with FIG. 20, FIG. 21. Conductor pattern 25
It consists of a hole section (1) and a wiring conductor (23).
The wiring conductor 23 is operated by the operator to input the operation command input means 13.
The wiring position data (24) connecting the coordinate positions determined by the wiring position data generating means 27, which is determined by the command designated by (1) or automatically determined, is generated and stored in the storage circuit 17.

In order to make use of the result of wiring design, FIG.
(A), (B) 25 in a specific area as shown in FIG.
There is a wiring design apparatus that can store the data, read it out later, and combine it with another wiring.

On the other hand, a part 28 as shown in FIG.
In this case, the component 28 and the wiring conductor 23
And the compaction ridge method of compressing the entire wiring area has been known .

[0005]

In [0005] the above-described wiring design device of a conventional printed wiring board, when new insert parts 28, wiring path of the moving part 28 must be searched again, previously designed Do the wiring position data 24 which is not raw or
I had stomach problems. Further, when the wiring gap is widened in a circuit or a remodeling for increasing the speed, there is a problem that a great deal of time is required to move the previous position of the wiring conductor 23.

[0006] In this case, the periphery of the conductor pattern to insert the part 28 as shown in FIG. 22 (A), dividing the (B) 25, it is also possible to insert a new component (C) 28 therebetween
However, there has been a problem that the dimension of the entire conductor pattern 25 is increased by about the dimension of the insertion part (C).

Here, when the compaction ridge method is used in order to reduce the size of the entire conductor pattern 25 by rearranging the surrounding components 28, if the via hole is larger than the wiring width, the conventional compaction ridge is used. According to the method, when the gap between the wirings is a small amount and is not as large as the size of the via hole, the via hole cannot be inserted, and there is a problem that it is difficult to calculate an optimum position to move the via hole.

[0008] The object of the present invention is to solve these problems,
It is an object of the present invention to provide a printed wiring board wiring design apparatus which can optimally arrange via holes while minimizing conductor wiring, and enable movement and insertion of components.

[0009]

According to the present invention, there is provided a wiring design apparatus for a printed wiring board, comprising the steps of inputting component arrangement data of the printed wiring board and wiring position data of wiring conductors, and setting the parts other than the wiring.
Of the terminals of the product or the nodes of the via hole
First net data generating means for generating first net data to be connected; and a predetermined net data from each of the nodes for each layer surface of the printed wiring board.
Line drawn in the vertical direction to the priority direction
Calculate the intersection on the body, record the node as an adjacent point,
Record adjacent points facing a node as data indicating the adjacent relationship
And an adjacent point connected to the node by a wiring conductor is connected to the node.
Second recorded as data representing the second connection network
A second neighbor that creates network data and further connects the nodes
The thickness of the wiring conductor existing between nodes by extracting the chain of the net
And the sum of the required minimum gaps and calculate the resulting value.
The second halftone data recorded in the first halftone data as the wire bundle thickness
Data creation means, when moving the parts and via holes,
Calculate the gap between the segments of the nodes at both ends of the first net data
And, calculating the position of the section to separate the gap the wiring bundle more than the thickness
And always place a wiring area between the nodes
Parts moving the via hole and the components and while
Characterized by having via-hole moving means,

The configuration of the apparatus for designing a wiring of a printed wiring board according to the present invention includes inputting the component arrangement data of the printed wiring board and the wiring position data of the wiring conductor and transferring the parts and via holes.
Operation command input means for receiving a motion command;
The location of the via hole is a node, and for each node, the node name and the node
Other clause names existing in the positive and negative directions of the X coordinate axis and the Y coordinate axis
First network data generating means for generating recorded first network data, and a predetermined priority direction predetermined for each layer from the node.
Calculate the intersection between the straight line drawn in the vertical direction and the wiring conductor
Adjacent point, the node and the adjacent point facing this node are adjacent
Record as data representing the relationship, and link it with the nodes and wiring conductors.
The connecting neighbor points represent a second neighbor network connected to the node
Create the second network data recorded as data, and
Extract a chain of the second adjacent network connecting the clauses,
Sum of the thickness of the wiring conductor existing between and the minimum required gap
And calculate the resulting value as the wiring bundle thickness,
Second network data creation means for recording the network data;
Move the part or via hole that describes the motion command
Move by command, and then
Other via holes and other parts that interfere with the
The procedure of moving in a chain between the nodes of the first network data
Between the components by maintaining the spacing of
Avoid interference and further avoid intersection of the first network data
In this way, the parts and via holes are
Parts moving means and vias that move and deform according to design criteria
It has a hole moving means, and a wiring position determining means for creating wiring position data of the wiring conductor from the first net data , wherein the position of the component is changed to automatically design the component arrangement / conductor wiring. Features.

[0011]

FIG. 1 is a block diagram showing an embodiment of the present invention. In this embodiment, as shown in FIG. 22, relative position data generating means 26 for inputting wiring position data 24 of a component 28 and a wiring conductor 23 and translating the wiring position data 24 into relative data, the wiring conductor 23 wire spacing
Component moving means 15 that moves and deforms according to the design criteria of
From the relative relationship data, the wiring position data 24 of the wiring conductor 23
And a wiring position determining means 16 for generating

The phase of the wiring conductor 23 of a specific circuit component is
Wiring part storage means 22 for storing and retrieving pair relation data
And the part moving means 15 inserts the relative relationship data.
After the combination, the part 28 is moved. The relative relationship data creating unit 26 includes the first network creating unit 11 and the second network creating unit 1.
8 and third network creating means 19. The relative relationship data to the first network (Section) Data 5 sequentially described below the
2 network (segment) data 9 and Ru and a third network (conductor extension) data 3.

In this embodiment, first, wiring position data 2
4 is read, and relative relationship data creating means 26 creates relative relationship data as described below. In the layout of the printed wiring board as shown in FIG. 2, the positions of the arranged component terminals and via holes are referred to as nodes 1, and a first net 2-1 connecting the nodes is created by the first net creating means 11. Stored in the storage circuit 4
You. This Ru named the first network data 5.

The first network data 5 indicating the node data is shown in FIG.
As shown in FIG. 7, for each section 1, a section name 5-1 and a section name 5-2 existing in the positive direction (X +) of the X coordinate axis and a section name existing in the negative direction (X-) of the X axis from that node. Name 5-3, Y of Y coordinate axis
The section names 5-4 and 5-5 existing in the + and Y- directions are stored. Node names 5-1 to 5-5 of the first network are component terminals.
Or the position of the via hole
Terminals or via holes and parts with section names 5-2 to 5-5
The terminal or via hole is connected by a wiring conductor 23.
May or may not be connected.

Further, as shown in FIG. 4, pre Me specified for each layer plane
Based on the given priority direction 6 (the X-axis direction in the figure) ,
An adjacent point 7 is created on the wiring conductor 23 adjacent to the node 1 common to the data in a direction perpendicular to the priority direction 6, and the node 1 and the adjacent point 7 are created.
Representing the second adjacent network 2-2 connecting the
The second network creation means 18 creates data representing a second connection network 2-3 connecting the first connection node and the node 1 on the wiring conductor 23 with the storage circuit 1.
7 is stored . These two data are stored in the second network data 9
Name it.

As shown in FIG. 5, the second net data 9 indicating the line segment data records the node name 9-1 for each node 1, and from there , connects the nodes by conductors in the X + and X- directions . 2 connection network 2-
3 is an adjacent point (section) name 9-2, 9-3 in the Y +, Y- direction
To the second connection network 2-2 adjacent to.
Record at 4,9-5. Also, the newly created adjacent point
7 is also recorded in the node name 9-1 of the new second network data,
The second network data 9 is created. Neighboring point 7 is written as section name 9-1.
When creating the second network data 9 to be recorded,
Where the adjacent point 7 of the name 9-1 and the second adjacent network 2-2 exist
Section 1 of the position of the product terminal or via hole
Or record in Section 9-5. In addition, the section name 9-1
The other component end connected to the adjacent point 7 by the second connection network 2-3
Node 1 or adjacent point 7 of child or via hole
Recorded in the section name 9-2 or 9-3, the second network data 9
Create Here, the first network data 5 and the second network data 9 are related by sharing the node 1. That is, the second network creating means 18 transmits the first network data 5
Section names 5-1 and 5-2 (or 5-3, 5-4, 5
-5) is not connected by wiring, the second connecting the two
The chain of the second adjacent network 2-2 of the network is extracted. And the first
Second network 2 of the second network connecting the nodes of the network data 5
The sum of the thickness of the wiring conductor 23 and the minimum required gap thereof in the chain of -2 is calculated, and the calculated value is defined as the thickness of the wiring bundle intersecting the first net, and the resulting value of the wiring bundle thickness in each direction, 5- 6 (there is
Or 5-7, 5-8, 5-9) as shown in FIG.
In addition to the network data 5, the data is stored in the first network data storage circuit 17.

As shown in FIG. 6, the second connection network 2-3 connecting the connection points 7 of the outline of the conductor region is represented by the second network data 9, while the third network creation means 19 is configured 2 connection network 2-
The node (adjacent point) name 3-1 of No. 3 is recorded, another adjacent point 7 in the direction from the adjacent point 7 toward the inside of the conductive area is extracted, and the third net data 3 is created as follows. . That is, FIG.
In the first, the other points extracted from the adjacent point name 3-1 are extracted.
Neighboring point 7 is closer to either the X or Y coordinate axis,
Determine whether the coordinate axis is in the positive or negative direction. Was
For example, another adjacent point extracted from the adjacent point name 3-1
7 is close to the X coordinate axis and in the positive direction, the positive direction of the X coordinate axis
(X +). Here, when (X +) is the direction facing the inside of the conductor area, the adjacent point 7 existing in that direction is recorded in the third net data 3 as the adjacent point (node) name 3-2.
In FIG. 7, since there is no other adjacent point 7 in that direction, the adjacent point name 3-2 is not recorded. Similarly, the negative direction (X
−), That is, extraction that is close to the X coordinate axis and located in the negative direction
When the other adjacent point 7 is in the direction facing the inside of the conductor area, the adjacent point 7 existing in that direction is referred to as the adjacent point (node) name 3-
3 and similarly recorded in the positive and negative directions (X
+, X-), that is, close to the Y coordinate axis,
When another extracted adjacent point 7 to be placed is in a direction facing the inside of the conductor region, the adjacent point 7 existing in that direction is recorded as adjacent point (section) names 3-4, 3-5. In 7,
Since there is no other adjacent point in the Y + direction, the adjacent point name 3-4 is not recorded. In this way, the third network data representing the third network 2-4 connecting the adjacent points 7 adjacent in the conductor region is created and stored in the storage circuit 17.

After the conductive pattern 25 is translated into the first net data 5, the second net data 9 and the third net data 3 in this manner, the via hole position, the component position, and the second connection network 2-3 are obtained.
Is displayed on the display means 12. The operator inputs a command to move the position using the operation command input unit 13. The parts or via holes designated to be moved in this way are moved by the via hole moving means 14 and the part moving means 15, and then the other parts and via holes which interfere with the moving destination are successively moved again by the via hole moving means 14 and the part moving means 15. Move in a chain.
This chain avoids interference between components by maintaining a necessary interval that keeps the interval between nodes of the first network data equal to or larger than the thickness of the wiring bundle therebetween , and similarly, sets the value of the interval of the third network data 3 Is predetermined
The minimum conductor width is maintained by maintaining the minimum conductor width
To implement based on the width of the design criteria Ru protect.

The via hole node 1 is a via hole moving means 1
Move with 4. This means 14 provides the via hole radius and the wiring bundle thickness 5-6 to 5-9 between the nodes 1 of the first network data 5.
According to the design standard of separating by more than the sum of the above, the via hole of the node 1 which needs to be further moved is also moved. Similarly, the third
The distance between the nodes 1 at both ends of the net data 3 is greater than the minimum conductor width
It is necessary to move further according to the design standard that keeps the distance between
The via hole of Section 1 is also moved. If the node 1 to be moved is the node 1 of the component pad, it is necessary to move the component. In this case, the distance data required to move the component is sent to the component moving means 15 to move the component. Let it. Thus, many via holes can be collectively moved to an appropriate position. The via-hole moving means 14 moves the via-hole group so that the first net data 5 does not intersect.

The part 28 is moved by the part moving means 15. This means is to move to keep the design standard of separating the wiring bundle thickness value 5-6 to 5-9 or more between the node 1 of all the component pads and the node 1 of the component pad of the other component 28. Other parts 28 that need to be moved are also moved. Sand
In the same manner as the via hole moving means 14,
For each component pad that has
Continuing the first network data 5 and the third network data 3
Design to separate more than the required interval between nodes 1 of the network data
Move the via hole of Section 1 to be moved further according to the standard.
If the node 1 is a component terminal, the component is moved. This
Here, when the node 1 to be moved is the node 1 of the via hole, it is necessary to move the via hole. To move the via hole. The new position coordinate value of the node 1 thus moved is obtained by updating the first network data 5 and storing it in the storage circuit 17.
To memorize. As a result, all parts 2 can be set within a predetermined dimensional range.
8 can be moved and arranged in a fluid manner.

As described above, all the via holes to be moved are
Or, after the chain of component movement ends, the wiring position data
The data 24 is calculated as follows. In other words, the moving wiring position determination means 16 determines, for each second connection network 2-3 described by the second (line segment) data 9, between the second connection network 2-3 and the neighboring node 1. Calculate the thickness of the wiring bundle that is sandwiched and leave the wiring position data 24 at a position separated from node 1 by more than the thickness.
Is calculated and stored, and the wiring conductor 23 is embodied. If there is a wiring conductor 23 that has already been embodied, the wiring position determining means 16 calculates the thickness of the wiring bundle sandwiched between the wiring conductor 23 and the wiring conductor 23 that determines the wiring position, and separates the wiring bundle by at least that thickness. The wiring position data 24 is calculated.

As described above, the component position and the wiring position data 24 are translated into various network data, and thereafter, the design conditions of the wiring bundle thickness are set.
Move the part 28 by, in particular with the movement of the part 28
The other parts 28 are also moved. Finally, the relative relationship data is re-translated into the wiring position data 24. By moving the plurality of components 28 together while maintaining a necessary gap therebetween, a compressed conductor pattern 25 as shown in FIG. 8 can be quickly realized from the conductor pattern 25 of FIG.

FIG. 9 is used in a second embodiment of the present invention.
FIG. 4 is a schematic diagram of a data structure of first network ( node) data. In the present embodiment, the second network creating means 18 is configured to execute the first network 2-1.
The wiring conductor 23 to the intersection, causing recorded in the first network detailed data 4 shown in FIG. 10. This first network detailed data 4 is
First network names 5-10 to 5-13 of the first network 5 shown in FIG.
Specify with. First network detailed data 4 shows a combination of the second phalanx name connection network 2-3 or adjacent point name of the wiring conductor 23 crossing the first network 2-1.

In this embodiment, the component moving means 15
By re-formed by the first network data 5 connecting the section shortest distance when 8 Before moving the first network creation means 3, the first network 2-1 may significantly alter component movement.
At this time, the re-formation of the first network 2-1 is performed by the first network creation means.
3 shows the names of the wiring conductors crossing the first net 2-1 in the surrounding area.
Search for a second net data name that intersects the first net data
It is realized by recording.

In this embodiment, when moving a component, the component and the via hole are fluidly pushed and moved, and the relative position of the component and the via hole is changed more than the conventional first net data intersects. Can be.

FIG. 11 is a block diagram showing the configuration of the third embodiment of the present invention. In this case, the relative relationship data of the wiring is created by the following relative relationship data creating means 26. The first network data creating means 1 converts the wiring position data 24 into a first network data.
( Section) Data 5 is created, and the area data creating means 2 is created.
9 creates area data 20 representing the second area 18 shown in FIG. 12 and the third area 10 shown in FIG. The area data 20 describes an area adjacent to the node name of the area boundary and the thickness of the connection line.

Thereafter, the component moving means 15 moves the component 28 while observing the design conditions of the thickness of the wiring bundle.
The other parts 28 are also moved with the movement of 8. Finally,
The wiring position determination means 16 retranslates the area data 20 into wiring position data 24. In this way, by moving the plurality of parts 28 together while maintaining a necessary gap therebetween, appropriate parts arrangement can be realized quickly.

In this embodiment, since the gap region and the conductor region are both explicitly described, the conductor region is particularly freely transformed.
This has the advantage of being deformable.

FIG. 15 is a flowchart showing the procedure of the fourth embodiment of the present invention, in which automatic wiring is performed. In step S1, automatic wiring is easily performed in a wide area having a sufficient wiring margin, and the result is described in the wiring position data 24. Next, in step S2, various relative relationship data are created from the wiring position data in the relative relationship data creating procedure 26 of the first to third embodiments. Then, in step S3, the component moving order calculating means 21 pushes and moves the component 2 to the outer edge of the printed wiring board.
8 and the order of movement of the via holes are calculated,
Then, the position at which all the components 28 are pushed and moved to the outer edge of the printed wiring board in the moving order is calculated. This pushing movement is performed a plurality of times in a plurality of directions, and the components 28 are stacked. The conductor pattern 25 of the integrated component arrangement is determined by the wiring position determining means 16 in step S4. Thus, the conductor pattern 2 of FIG.
5 is compressed as shown in FIG.

The fourth embodiment has the advantage that the parts arrangement and wiring of the printed wiring board can be simply and quickly designed by moving the parts 28 collectively after the automatic wiring is easily and quickly performed. .

FIG. 17 is a flowchart showing the procedure of the fifth embodiment of the present invention. In this embodiment, various relative relationship data of the first to third embodiments are created, and in step S11, an abstract image of the second connection network 2-3 is displayed on the display unit 12 as shown in FIG. Then, in step S12, the second operation of the wiring conductor 23 for changing the wiring position by the operation command input means 13 to the operator is performed.
Designation of connection network 2-3 and newly inserted component 28 or
Instruct the position of the wiring to change the order of movement, insertion and arrangement .

The wiring design device is configured to execute the first network creating means and other relative data creating means 2 based on the command.
6, the second component 28 or the wiring conductor 23 is inserted.
The network ( line segment) data 9 and the first network ( node) data 5 are recreated. In this way, the relative relationship data shown in FIG.
Change as follows.

Finally, in step S13, the wiring position determining means 16 calculates the thickness of the wiring bundle between the wiring whose wiring position has been determined and the wiring whose position has been changed or the inserted component 28, and separates it by at least the thickness. to determine their position Te.

Thus, the position of the wiring conductor 23 is changed. In the case of the present embodiment, there is an advantage that the insertion of the component 28 and the change of the wiring order of the wiring conductor 23 can be freely performed in this manner.

FIG. 19 is a flowchart showing the procedure of the sixth embodiment of the present invention. In this embodiment , various phases of the wiring conductor 23 are used.
The relative relationship data creating means 26 creates relative relationship data (S1). When the operator designates a wiring pattern of a specific circuit portion using the operation command input means 13, the relative relationship data is stored in the wiring portion storage means 22 such as a magnetic disk storage device in step S21.

In step S22, the relative relationship data of the conductor pattern 25 stored in the wiring portion storage means 22 is read out by the designation made by the operation command input means 13 by the operator, and they are combined in a wide area having a sufficient wiring margin. .
Thereafter, the moving order calculating means 2 of the part 28 of the fourth embodiment
1 and the component moving means 15 (S3), and the wiring position determining means 16 determines the arrangement of the component 28 and the conductive pattern 25 (S4).

Thus, the relative relationship data of the conductor pattern 25 of the circuit common to many printed wiring boards is stored in the wiring portion storage means 22.
Then, the component 28 is moved and arranged after being read from the device and incorporated in other wiring. In this embodiment, the wiring part storage means 2
2 has the advantage that the wiring pattern can be quickly designed by reading the conductor pattern 25 stored in 2 and inserting it into the surrounding wiring.

[0038]

As described above, according to the present invention, a large number of via holes having dimensions larger than the wiring width can be moved to appropriate positions.
Since the parts can be freely moved, inserted and densely packed, there is an effect that the parts can be inserted under the condition of minimizing the dimensions of all the conductor patterns by utilizing the wiring around the inserted parts.

[Brief description of the drawings]

FIG. 1 is a block diagram of a first embodiment of the present invention.

FIG. 2 is a plan view showing an arrangement relationship between nodes of the printed wiring board of FIG. 1 and a first net;

FIG. 3 is a schematic diagram showing a data structure of node data in FIG. 1;

FIG. 4 is a plan view showing the arrangement of conductor portions and nodes in the relative relationship data of FIG. 1;

FIG. 5 is a schematic diagram showing a data structure of line segment data of FIG. 1;

FIG. 6 is a plan view showing a conductor internal line segment of the relative relationship data of FIG. 1;

FIG. 7 is a schematic diagram showing a data structure of conductor extension data of FIG. 1;

FIG. 8 is a plan view showing an example of a conductor pattern resulting from the component movement of FIG. 1;

FIG. 9 is a schematic diagram showing a data structure of node data according to the second embodiment of the present invention.

FIG. 10 is a schematic diagram showing a data structure of first network detail data of FIG. 9;

FIG. 11 is a block diagram of a third embodiment of the present invention.

FIG. 12 is a plan view showing a gap region in the embodiment of FIG. 11;

FIG. 13 is a plan view showing a conductor region according to the third embodiment of FIG. 11;

FIG. 14 is a schematic diagram showing a data structure of area data according to the embodiment shown in FIG. 11;

FIG. 15 is a flowchart illustrating an automatic wiring design operation according to a fourth embodiment of the present invention.

FIG. 16 is a plan view showing an example of a conductor pattern as a result of component movement in the embodiment of FIG. 15;

FIG. 17 is a flowchart illustrating a component insertion operation according to a fifth embodiment of the present invention.

18 is a plan view showing an example of a result of inserting the wiring conductor of FIG. 17;

FIG. 19 is a flowchart of a wiring storage / retrieval operation according to a sixth embodiment of the present invention.

FIG. 20 is a block diagram of a conventional wiring design apparatus.

FIG. 21 is a plan view showing an example of wiring positions of the printed wiring board of FIG. 20;

FIG. 22 is a plan view showing wiring position data in which a new wiring is inserted in the design of FIG. 20;

[Explanation of symbols]

Section 1 2-1 First network 2-2 Adjacent relationship 2-3 Conductor part 2-4 Conductor extension 3 Conductor extension data 3-1 Adjacent point names 3-2, 3, 4, 5 X +, X-, Y +, Neighboring point name connected in Y-direction 4 First network detailed data 4-1 First network name 4-2 Node name at one end of first network 4-3 Neighboring point name adjacent to node 4-2 4 -4,6 Name of adjacent point of conductor part 4-5 Name of adjacent point having adjacent relationship with adjacent point 4-4 4-7 Name of node having adjacent relationship with adjacent point 4-6 5 Section data 5-1 Section name 5-2 , 3,4,5 Section names in X +, X-, Y +, Y- direction 5-6,7,8,9 Wire bundle thickness (X +, X-, Y
+, Y-) 5-10, 11, 12, 13 X +, X-, Y +, Y
Name of first network in negative direction 6 Priority direction 7 Neighboring point 8 Gap area 9 Line segment data 9-1 Section name 9-2,3 Name of connection point connected in X +, X- direction 9-4,5 Y +, Y- Names of adjacent points having an adjacent relationship in the direction 10 Conductive area 11 First net forming means 12 Display means 13 Operation command input means 14 Via hole moving means 15 Component moving means 16 Component position determining means 17 Storage circuit 18 Second net forming means 19 Third net creating means 20 Area data 20-1 Area name 21 Moving order calculating means 22 Wiring part storing means 23 Wiring conductor 24 Wiring position data 25 Conductor pattern 26 Relative relation data creating means 27 Wiring position data creating means 28 Parts 29 Area Data creation means

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-4-37156 (JP, A) JP-A-3-167669 (JP, A) JP-A-3-6042 (JP, A) JP-A-2- 90367 (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) G06F 17/50

Claims (3)

(57) [Claims] 1. A component terminal other than the wiring, wherein component placement data of a printed wiring board and wiring position data of a wiring conductor are input.
No. connecting the nodes of the element segments of the via
First net data generating means for generating one net data, and predetermined from each section for each layer surface of the printed wiring board.
A straight line drawn vertically in the priority direction and on the wiring conductor
Calculate the intersection of and record the node as an adjacent point.
The opposing adjacent points are recorded as data representing the adjacent relationship,
An adjacent point connected to the node by a wiring conductor is connected to the node.
The second network data recorded as data representing the second connection network
Data of the second adjacent network connecting the nodes.
By extracting the chain, the thickness of the wiring conductor existing between nodes and its
Calculate the sum of the minimum required clearances of the
Second network data creation to be recorded in the first network data as thickness
Means for moving the component and the via hole,
Calculate the gap between the segments of the nodes at both ends of the
By calculating and arranging the positions of the nodes separated by more than the thickness of the wiring bundle
The via hole while always securing the wiring area between the nodes.
Printed circuit board wiring design apparatus characterized by having a part and the via hole moving means moves the Lumpur and parts. 2. A method for inputting component layout data of a printed wiring board and wiring position data of a wiring conductor, and also includes a component and a via.
An operation command input means for receiving a hole movement command, and the positions of the component terminals and the via holes are set as nodes, and
Section name and the X and Y coordinate axes in the positive and negative directions from the section
Create the first network data that records the names of other sections
Vertical and network data creating means, in a predetermined preferred direction to the layer surface each from the previous SL clause
Calculate the intersection between the straight line drawn in
And the adjacency relation between the node and the adjacent point facing this node is displayed.
Next to the section and connect it with the wiring conductor
A contact point, with data representing a second adjacent network connected to said node;
Create the second network data recorded by
Extracts the chain of the second adjacent network to be connected and exists between the nodes.
Calculate the sum of the thickness of the wiring conductor to be formed and its minimum required gap
The resulting value is used as the wire bundle thickness as the first network data.
A second network data creating means to be recorded in the data and a part or via hole in which the movement command is described.
And then move the part or bead.
Other parts and via holes that interfere with the destination of the hole
The procedure for sequentially moving data one after the other
Keep the distance between the nodes equal to or greater than the thickness of the wiring bundle between them.
Avoid interference between products, and intersect the first network data
Oyo component movement means for moving or deformed according to the design criteria of the wiring interval the component and the via-hole by being carried to avoid
And via hole moving means, and wiring position determination means for creating wiring position data of the wiring conductor from the first net data , wherein the position of the component is changed to automatically design the component arrangement / conductor wiring. A wiring design apparatus for printed wiring boards. 3. The method according to claim 1, wherein the first portion of the wiring conductor of the specific circuit portion
It includes a network data and the wiring portion storing means for storing and retrieving the second network data, said first network data and the second
3. The printed wiring according to claim 1, wherein after the net data is inserted and connected, the component moving means arranges the component at an appropriate position, and the wiring position determining means creates the wiring position data of the wiring conductor from the relative relationship data. Board wiring design equipment.