JPS58168291A - Method of automatically correcting of printed board wiring pattern - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Technical Field of the Invention The present invention provides a method for visual inspection of misalignment patterns when creating an artwork film of a main turn of a glint board arrangement.
Undiscernible minute 1-branch pattern (L branching into a T-shape)
11kl'' wiring pattern) before making the film.
This invention relates to a method for automatically correcting V-shaped wiring connections.

(2) Background of the Technology With recent advances in the performance and miniaturization of electronic devices, the density of wiring on printed circuit boards has also increased significantly.

For this reason, the wiring conductor width and the conductor spacing in the wiring mother turn are extremely narrow.

In the mounting design of the arrangement and mother turn of such a talint board, the routing is usually based on the arrangement of electronic components. A program (wiring between electronic components) is created and this is filed on magnetic tape as wiring master turn information. Then, based on this magnetic tape, a wire/transfer pattern is activated on the art film by following the path of the information medium paper sheet -> electronic calculation mark -> hand of an automatic drawing machine, etc. Then, this wiring (arm) turn diagram is displayed on a display means such as a graphic display at the art film stage, and visually inspected, and any wiring errors are corrected. in this case,
A minute TOwL arm turn is usually formed in the four turns of the wiring. As mentioned above, the wiring spacing between these tiny T-branch turns is very narrow, so it is extremely difficult to visually determine whether or not they should actually be connected to a T-branch turn. It may be difficult to distinguish. Therefore, in order to be able to reliably identify the connection by visual inspection, such small T-branch no-turns are often modified to V-shaped connections. Reliably and quickly correct any corrections without omissions,
It is preferable to use a method of correction that can be carried out, and it is further preferable that the correction is carried out before the artwork film is produced, that is, at the stage of distribution and turn-by-turn information.

(3) Prior Art and Problems The conventional method of correcting the 4th turn of the minute T-drum is to display the wiring and the T-drum on a graphic display gray and visually check the minute 1-drum/ The method used is to find the four turns and manually correct the pattern using a graphics system (for example, a graphic conversational system). However, with this method, it takes time to correct the pattern, and there are times when the pattern is overlooked and corrections are omitted.
There is.

(4) Purpose of the Invention The purpose of the present invention is to solve the above-mentioned conventional problems and to provide a function for detecting minute T-branches and turns at the stage of wiring/alignment information, Tk the turns in a V shape
By using the function of converting into a pattern and the function of correcting the acute angle path caused by V-shaped wiring/lean conversion to an obtuse angle path, all the small T-branches/false turns in the 9 turns of the printed temporary wiring can be manually completed. It is an object of the present invention to provide an automatic correction method capable of making corrections without indicating a route. (5) Structure of the invention
The wiring pattern of each cell is 8 for each coordinate in the X and Y directions.
It is stored as direction connection vector information, and the above 8
It is determined whether the number of direction ms vector information is three or more, and when the eight-way connection vector information is three or more, the vector information of each cell is canceled and the cell becomes a dead cell. A printed board arrangement characterized by modifying the vector information tube and thereby converting it into a minute T-branch, 4-turn Yrv-shaped connection M pattern! ! i! /f
A micro T-limb pattern one-motion correction method for a turn is provided.

(6) Examples of the invention The following is a book! A specific embodiment will be described in detail based on the drawings. Figures 1I41 to 111 are diagrams for explaining the present invention in detail.

The automatic correction method of the present invention is performed under a system assembly as shown in FIG. In other words, Kai II! The pattern information is sent from the l10 (input/output device) 32 to the CPU (control device) 31, and the CPU 31 associates the printed board surface with the address in the MEN (storage device) 33.
! It is opened and stored.

The storage state of pattern information in this MEN33 is for each X, Y! of the printed board surface! The intersection of M@ (a virtual grid is set on the 7" lint board, and the intersection points of this grid are intersected) is [as shown in Figure 2, the corresponding XIY+
-XBY! , is placed in cell 34 (address). The memory processor for each address secures the wiring t+turn information in the required number of bytes. And MEN33
The wiring pattern information stored in
32.

Next, we will explain how to modify wiring pattern information in KMEM33.
! Pattern information 11 (a) and G-9 are shown respectively (
B).

) As shown in the figure, the cell (Rk
It shows the appearance lit with a small case point of 34.

Figures (A) and 01 respectively show the micro 7-way line and V-shaped connection pattern, and corresponding to Figure (A), Figure (B) shows (
C) Corresponding to the figure) In the figure 0 where the figure is shown, X
.

Xmaro #X4#X and Y*sY@ indicate sub-grids (dotted lines), and numeral 35 indicates a land (connection point for terminals of electronic components on a printed board or through hole for connection between the surface of a printed board) ), 36 indicates one minute of the wiring pattern, therefore, for example 0) land 35 in the figure
is located at the intersection of the main lattice XY and Y4, and is located at the cell 34 at the address XaeY in the figure (B). Also, since the line segment 36 runs through the sublattice Y1 in the figure (0), the address XI #Yl in the figure (b)
From there, it will pass through X@#Yl. Sara KO
), (b) In the figures, lands 35 and 1 minute 36 are connected to 1 minute 37. which runs on the main grid XI. It is concluded by 1.

! 1 minute 37 is a minute line segment (minimum green segment) running between the main lattice Y4 and the sub-lattice y, and the intersection (minimum lattice spacing W).Therefore, line segments ゛36 and 37Fi form a minute T segment p4 turn tube. are doing. The main grid spacing (the spacing between Y+ and Y4) is usually set to 2, 54 m (1/10 inch), or 2.5-, so line segment 37 is extremely small. , 8-bit information associated with vector information in 8 directions is stored as connection information in each of these cells. In other words, Figure 4 (a) shows vector information in the cell 34 with arrows, and the alignment of the arrows indicates the vector information! ! Show your face.

In FIG. 4(b), the vector information in eight directions of the cell 34 is labeled with symbols .about.■, respectively, and the directions of the vector information are indicated by the symbols. Figure 4 (f is vector information
An example of 8-bit information associated with ~0 is shown, and in the case shown, ■, ■, ■ are 1 (connection vector exists), and others O■,
■, ■, ■, ■ are 0 (no connection vector) K - In other words, in this case, this cell has connection vectors ■, ■, ■ shown in Figure 4 (→) T This shows that a branching pattern exists.

In fact, the first OII & O is the detection of a minute T-string Δ turn. As an example, FIG. 5 can be shown assuming a Δ-turn of glint board wiring with two layers on the back side, and usually, as a decoy, one 0) side is mainly arranged with meridians in the X direction. The IA turn is running, and the other (→ plane is mainly the layout 1w of the Y direction route)
The Δ turn is running・The arrow mark is 7 of the X1ill route
Minute M pattern search, and the arrow crow is yiis route O route 0 If so, search is performed for each cell along the Y coordinate route to detect cells that have vector information in three or more directions. in this case,! In order to form a branching turn, for example, in the case of vector information in three directions, vector information in a direction perpendicular to two vector information in the Y-axis direction exists. Therefore, in the case of this (mouth) plane, the D classification pattern can be determined by searching for the presence of either vector information ■, ■ in the Y-axis direction, or ■ or c (see Figure 4 (mouth)). Can be detected. That is, in this case, the combination of vector information in three directions is ■, ■, ■, and the case where the combination of vector information in three directions is ■, ■.

In the case of ■, a T-branch pattern is formed.0
Next, the vector information of the T-branch 71 turn vector information ■ or the vector information of the land adjacent to ■ is searched by the Matsu binder centered on the land point, and the vector information N opposite to the vector information ■ or ■ is searched (i.e., If (2) exists for (2) and (2) for (2), it can be detected that this T-branch pattern and the land are connected to form a minute T-branch I4 turn.

FIG. 6 is a diagram in which the minute 1st branch I4 turn t1 of FIG. 5 is expressed in cells in this way. T for exposure
The vector information (2) of the branch pattern and the vector information (2) of the land 35 are opposed to each other (opposed arrows mean connection of Δ turns), forming a minute 7-turn pattern.

Next, as the 20th process, the detected minute T-branch pattern is modified and converted into a V-shaped connection/L turn. FIG. It is. In the same figure, % & * b e
e g 4 each indicates a cell, and the arrow indicates vector information (see Figure 4 (mouth)). Therefore, the microscopic string pattern shown in Figure 7 (0) is expressed as a cell as shown in the (mouth) figure. First, by deleting (setting to 0 in 8-bit information) the i1 vectors ■, ■, and ■ that form the T-junction in cell b in the figure (/9), the shape of cell b shown in figure mK is Cell a a O that has a connection relationship with the 0th order cell b to be changed
* Change the vector pointing to cell b of d. In other words, e) the vector of cell a in 1 is
Then, change the vector 0 of the e cell to ■, delete the vector ■ of the cell Hiroshi, and input the vectors ■ and ■ to change the state to the state shown in the figure. If you express this figure in a # pattern, it will become a V hand-line/parallel turn as shown in the figure (e).

In this way, the small T-branch/maritime turn shown in 0) is modified to the V-shaped Δ turn shown in 2).

As mentioned above, the minute T-branch Δ turn has a V-shaped connection 11/
In some cases, an acute bending point that changes to an f-turn and connects at 90 degrees or less may occur in 9 ms. In such a case, a third process is performed in which the vector is transformed from this acute angle break point to an obtuse angle break point.

FIG. 8 is an explanatory diagram of the third processing procedure in such a case. In the same figure, @ e b * @ # d
. . , f indicate cells as in FIG. 7, and 35 indicates lands. 0) The minute T-minute Δ turn shown in FIG. 7 is indicated by (B) IIK. (W:1) The processing from the figure to the figure is performed in the same procedure as in the case of No. 71A described above. However, in this case, an acute-angle break point is generated by the vectors ■ and Φ.

The state shown in Fig. (B) is changed to the state shown in Fig. (F) through the procedure shown in Fig. (E) (shown in the normal route or removed from the diagram). That is,
(f) In II, the vectors ■, ■, ■ are shown by dotted lines.

■H) indicates the vectors that change to the state shown in the figure, and the vectors shown by solid lines ■, ■, ■ indicate the vectors in the state 1IIK of the figure (e) Therefore, (e) the procedure shown in the figure is as follows. Delete the cell book vectors ■ and ■, OK the cell vector ■, and change the seven-leaf vector ■ to ■. Weird! −g, so, however, in the (to) figure, the vector of cell ■, Φ
A right-angled turning point is formed by .Thus, the state of (f) is changed to the state of (tf)ll through the hand Ili shown in (g) (I [shown removed from the road)]. Suna t) Chi, ()
) In the figure, vectors ■, ■ are indicated by dotted lines.

■,■ indicate the vectors in the figure lIK, and the solid line indicates the vector 0. (G) The processing procedure in the figure is to delete the vectors ■ and ■ of cell ・, set the vector ■ of cell d to 0, and set the vector ■ of cell f to 0. Change vector ■ to 0. As a result of this, (to) the state shown in the figure, the state shown in the example figure 1! is changed to , and the process ends. - Set the diagram mΔ turn - eli! This is a diagram of nine things. In this way fg) IIK
The micro-branched parable turn shown is modified into the obtuse pattern shown in the figure.

Figure 9 shows the -? It-indicates;
fl) The figure shows the wiring line in which the minute 7 public string pattern tgetset8 exists, and the figure (b) shows the minute τ branch line tl sit eta in the figure 0) where the V-shaped wiring connection no 4 turn pattern is present. FIG.
(Figure 1) shows the 74-chart (flow diagram) of the operation =
Fig. 10 shows the overall flowchart for searching each cell of the wiring pattern information (Fig. 2) in the MEM33 (Fig. 1) K (search in the IC axis direction), and Fig. 11 shows the 10th factor " It is a flowchart of the operation in the X-axis direction direction. In Figure 10, the address of the cell is Xi
, yj (1=1~!11j-to1), and search each cell. When the search starts, from (J-0) to (j←
j + 1), from (1 0) to (1 ← 1 + 1)
is set to (X, Yl) and the cell is read out.
"X-axis direction routine" is performed. When this is finished,
Next KCXm - Yt ) cells are read out and sequentially (
The Y coordinate is then changed (Xl.

The cells from cell ym) to cell (x, tyt) are sequentially read and processed. In this way, II&ring is performed up to the (x, *Y,) cell. FIG. 11 is a flowchart of the processing procedure in the rxX axis direction routine of FIG. 10. A part of this flowchart includes the processing method 1iK @ Hidden Amano that shows the 7th mK (7) Effects of the invention. The automatic correction method for small 1-way patterns can correct all small J-turns without manually instructing the route, reducing the number of corrections required and eliminating the possibility of artwork being corrected or omitted. There is a great effect in that the troublesomeness of visual inspection of films can be eliminated.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the system configuration for implementing the automatic correction method of the present invention, and FIG.
l # Y Zen ~ % r Ym O Diagram showing memory processing using a two-dimensional array. Figure 3 shows the micro T-branch Noreen and V-shaped knot patterns expressed in lattice coordinates ((a), eu)
and cell ゛ (minimum grid - 1 cell) expression ((b), ni))
Figure 4 shows the cell's 8-way connection vector information.
■(H), ←)) is a diagram showing the representation of 8-bit information ((C))K. Search method O explanatory diagram, Fig. 6 company Fig. 5 minute! Minute Δ turn 1. 7m is a diagram W14 showing the procedure for correcting the small i-branch arm turn to a V-shaped wiring pattern in cell representation.
Figure 8 is an explanatory diagram of the procedure for correcting acute angle bends and arm turns of 90 degrees or less caused by the minute T-branch Δ turn correction J611 to obtuse angle - I line, and Figure 9 is an explanatory diagram of the procedure for correcting the sharp bends and arm turns of 90 degrees or less caused by the small T-branch Δ turn correction J611.
An example of a pattern in which lKIc parts are mounted is a Hui Xiaoding branch no turn (0) diagram) and a V-shaped knotted Δ turn ((→
Figure 10wJ and Figure 11 are diagrams showing the 74-chart of the operation of the cPU31 (Figure 1), Figure 10#t
J is a 70-chart of the entire operation, and FIG. 11 is an O-4-chart of the operation in the "X-axis direction routine" in the 10th cabinet. $1-CPU (control device), 32-Ilo (input/output device), 33・-MIM (storage device), 34...'k le, 35-5 mad, 36, 37-・distribution/Ij141 −
7o Line segment, ■, ■, ■, 0. ■, ■, ■, ■-・8 directions in cell 34! ! + Continued vector information, breath st
l eta eta-Minute T minute Δ turn, ma ■
. Master proverb, Mad-vy #Connection Connection Voice Mother Turn Applicant Fujitsu Limited Patent Application Agent Patent Attorney Akira Aomi Patent Attorney Illustrations Kazuyuki Tate Patent Attorney 1) Yukio Patent Attorney Akiyuki Yamaguchi vSS diagram Figure 10

Claims (1)

[Claims] The wiring pattern information of each cell is stored as 8-direction connection vector information for each seat number in the X direction and y direction.
It is determined whether the number of directional connection vector information is three or more, and when the number of 8-way connection vector information is three or more, the vector information of each cell is canceled and the cell is sold. This method is characterized by correcting the vector information of the board layout and converting each turn, which is minute from IK, into a V-shaped connection and 9 turns.