JPS61115173A - Preparation processing device of substrate artwork data - Google Patents

Abstract

PURPOSE:To allow preparation of a circuit diagram and artwork data with ease by providing a converting means to convert the picture data as the output data from an existing mechanical drawing CAD system into the image preparation command using those which can providing the graphic elements of the existing mechanical drawing CAD system with attributive information. CONSTITUTION:Picture data processing section 10 inputs two dimensional lines, arcs, etc. from keyboard 2 and line pen 3, etc., picture editing section 13 displays a graphic on graphic display 4, circuit diagram of printed circuit board is also input. Picture data processing section 10 inputs two dimensional lines, arcs, etc. also executes graphic input processing of circuit diagrams for printed circuit boards while displaying figures on graphic display 4. Picture data processing section 10 is designed to provide individual input lines and arcs with attributive data using an attributive input section 11. As such processing is usually supported by a general mechanical drawing CAD system, in embodiment of this invention, an existing CAD system can be used as picture data processing section 10.

Description

[Detailed description of the invention] [Industrial application field] The present invention is a board artwork data creation processing device.

In particular, for example, general mechanical drawing CA D (Comput
The present invention relates to a circuit board artwork data creation processing device that automatically interprets figures and creates artwork data for a printed circuit board by drawing a wiring diagram using an er Aided Design system.

[Conventional technology and problems]

A system for automatically designing the wiring pattern of a printed circuit board using a computer is being considered.

Wiring pattern data obtained through automatic design.

Output as artwork data that controls the exposure device,
The exposure device controls the movement of the light source according to the artwork data, and is used to create a transparent film (artwork film) used when etching the wiring pattern on the printed circuit board.
Create.

However, conventional CAD systems dedicated to printed board design support a series of steps such as logic circuit design, two-component layout design, wiring design, and artwork data creation. There is a problem in that it is not possible to perform only wiring design and creation of artwork data based on the wiring design.

Therefore, the arrangement of the nine parts has already been decided.

If you try to perform processing after wiring design, use the conventional method.

It has been necessary for humans to design wiring on paper and to successively extract position coordinate data using, for example, a digitizer. Therefore, there are problems in that input is extremely complicated, there is a high risk of erroneous input, and input takes time.

By the way, recently various general mechanical drafting CAD systems that define lines and arcs, for example, have been used, and the image data edited by these systems does not contain information such as the thickness of lead wires and the types of various lands. It does not include any information and simply defines the image to be displayed on a graph ink display, etc., so it cannot be used as is to create artwork data.

[Means for solving problems]

The present invention aims to solve the above-mentioned problems, and focuses on the fact that, for example, some existing CAD systems for mechanical drawing can attach attribute information to one graphic element.

In addition to using this, a conversion means is provided to convert the image data that is the output data into drawing commands, and by combining them, it is possible to easily input wiring diagrams and create artwork data. I will provide a. Namely, the substrate artwork data creation processing device of the present invention is a board artwork data creation processing device that creates artwork data to be applied to an exposure device that generates a film used when etching a wiring pattern on a printed circuit board. an image data processing unit that inputs two-dimensional line information and arc information together with their attribute information and edits the image data; An image data input unit that extracts a graphic element consisting of attribute information corresponding to the image data input unit, and an exposure device that controls the thickness of the lead wire, the type of land, etc. with respect to the attribute information related to the graphic element extracted by the image data input unit. A command conversion output unit that edits and outputs the drawing command based on the information associated by the attribute matching processing unit and the coordinate information of the graphic element; The feature is that artwork data is created from the data.

An embodiment will be described below with reference to one drawing.

〔Example〕

FIG. 1 is a block diagram of the configuration of an embodiment of the present invention, FIG. 2 is a diagram for explaining the content of image data related to the present invention,
FIG. 3 shows a diagram for explaining an example of artwork data related to the present invention.

In FIG. 1, reference numeral 1 denotes a device including a central processing unit (CPU) and a main memory, and is a processing device that sequentially fetches and executes predetermined instructions. Also, 2 is a keyboard, and 3 is a light ben.

4 is a graph ink display using a bit map, 5 is an image data file provided in a magnetic disk device, etc., 6 is an intermediate data file used in creating artwork data, and 7 is a magnetic tape device to which the created artwork data is output. etc. Artwork data output device.

10 is an image data processing unit; 11 is an attribute input unit for inputting attributes regarding graphic elements; 12 is a coordinate input unit for inputting coordinate information regarding image data; 13 is for editing while displaying the input image on the graph ink display 4. 14 represents an image data output unit that outputs image data to an image data file 5.

Further, reference numeral 20 is an artwork data creation section.

21 is an image data input unit into which image data created by the image data processing unit 10 is input; 22 is an attribute interpretation unit that interprets the attributes of graphic elements; and 23 is a unit in which correspondence between attribute information and information regarding drawing commands is registered. corresponding table, 2
Reference numeral 4 denotes a correspondence table search unit that searches the correspondence table 23 according to attribute information.

25 is an intermediate data output unit that outputs intermediate data corresponding to each graphical element; 26 is a drawing optimization unit that optimizes the intermediate data in order to efficiently draw the image in the exposure device;
Reference numeral 7 represents a command conversion output unit that converts the optimized intermediate data into drawing commands and outputs artwork data.

In the case of the present invention 1 For example, using a CAD system that handles general two-dimensional figures, the finished image of the artwork film is drawn using two-dimensional lines.

By converting the image data thus created into data for creating an artwork film, artwork data can be easily created.

The image data processing section 10 inputs two-dimensional lines, arcs, etc. from the keyboard 2 and the light pen 3, etc., and displays the two figures on the graphic display 4 by the image editing section 13, while creating a wiring diagram for the printed circuit board. It executes the process of drawing and inputting. The image data processing section 10.

Further, attribute data can be assigned to each input line or arc using the attribute input section 11. Attribute data is inputted using a character string command or a menu.

The image data edited by the image editing section 13 is as follows.

Two image data files 5 are generated by the image data output unit 14.
It is possible to output and store one image data.

Such processing by the image data processing section 10 is as follows.

Since it is normally supported by general mechanical drafting CAD systems, an existing CAD system can be used as the image data processing section 10 in carrying out the present invention. However, in the present invention, the attribute data used for graphical elements such as color information and line type information such as dotted lines and dash-dotted lines in normal CAD systems is changed to Information and
The attribute data is associated in advance with land type information that specifies the shape of the land, etc., and the above attribute data is stored in the image data file 5 along with coordinate information that determines the graphical elements of each line and arc.
It is designed to be stored in .

Two image data files 5 created by the image data processing unit 10
The content of the image data output to is 1. For example, Figure 2 (a)
For wiring patterns as shown.

It is as shown in Figure 2 (b). In FIG. 2(b), XI and Yl represent the starting point coordinates of a line or the center coordinates of a circular arc. x2 and Y2 represent the coordinates of the end point of the line. Further, R represents the radius of the circular arc. As the attribute data described above, for the line, a lead line with a thickness of 1.0 is specified, and for the first arc.

For the land of type No. 1 and the second arc.

Land of type No. 2 is designated. Note that a line in one image data is associated with a lead line, and five circular arcs are associated with a lead line or a land.

The illustrated artwork data creation section 20 in FIG.

The image data input section 21 inputs image data as shown in FIG. A drawing command sequence suitable for the format of artwork data is generated and output to an artwork data output device 7 such as a magnetic tape device.

In the correspondence table 23, correspondence information between the identifier of each attribute regarding one graphic element and the drawing command for controlling the exposure device is registered and held in advance.

The attribute interpretation unit 22 interprets the attributes regarding each graphic element,
The correspondence table search unit 24 is notified. The correspondence table search unit 24 searches the correspondence table 23 using the notified attribute identifier as a key, and selects a drawing command corresponding to the attribute. This drawing command information is notified to the intermediate data output unit 25 along with the coordinate information of one graphic element, and the intermediate data output unit 25 outputs the intermediate data regarding each graphic element to an intermediate file provided as a work file in a magnetic disk device or the like. Output to data file 6.

The drawing optimization unit 26 reads the intermediate data output to the intermediate data file 6, performs sorting and integration processing of information regarding each graphic element, and optimizes the data so that drawing by the exposure device is performed efficiently without waste. It is used to process changes. For example, starting from the land closest to the origin, the lead line is followed, and when an end point is reached, the next land closest to the end point is selected. Then, the same process of tracing the lead lines is repeated. or.

The distance by which the light source must be moved may be calculated by trial and error, and the optimization process may be performed to select the route that provides the shortest distance.

The command conversion output unit 27 converts the intermediate data optimized in this way into a drawing command for controlling the exposure device and outputs it.

The artwork data that controls the exposure device generally consists of XY coordinate information that defines the operation of the exposure device and information that controls the on/off of light. for example.

When drawing a wiring pattern as shown in FIG. 3(a), artwork data is created using a drawing command sequence as shown in FIG. 3(b).

In Figure 3 (b), "≠" in the data.

This indicates the delimiter between commands. "XIY" in the illustration
l'' is 1. from the origin position in the X direction. This is command data that instructs to operate the exposure device by a distance of 1 in the Y direction. "M8" in the illustration is.

Instructs to turn on the light. “XIYl” shown in the diagram
is further 1. from the current position in the X direction. Instructs to move one step in the Y direction. Similarly, "Xl" shown in the figure 1 instructs to move one step further in the X direction from the current position. rY-IJ shown in the figure.

Instructs to move further by -1 in the Y direction from the current position. "M9" in the figure indicates to turn off the light. rX-3Y-IJ shown in the figure.

It instructs to further move -3 in the X direction and -1 in the Y direction from the current position and return to the origin. It goes without saying that commands for specifying the thickness of the lead wire, the shape of the land, etc. are also prepared and are output in the same way.

〔Effect of the invention〕

As explained above, 9 According to the present invention, a drawing of a completed artwork film image is manually created on paper as in the conventional method, and 2 position coordinate data is extracted point by point using a digitizer, for example, and 1 re-edited. This is no longer necessary and the two-position coordinate data is automatically extracted by drawing the wiring diagram, making it possible to reduce erroneous inputs and input omissions. Furthermore, the time required to create data can be significantly reduced. In carrying out the present invention,
For inputting image data showing wiring patterns.

It is possible to use an existing CAD system, and therefore the present invention can be implemented relatively easily and inexpensively, and requires no operational skill for users who are accustomed to using existing CAD systems. There is also the effect that it does not.

[Brief explanation of drawings]

FIG. 1 is a block diagram of the configuration of an embodiment of the present invention, FIG. 2 is a diagram for explaining the content of image data related to the present invention,
FIG. 3 shows a diagram for explaining an example of artwork data related to the present invention. In the figure, 1 is a processing device, and 5 is an image data file. 7 is an artwork data output device, 10 is an image data processing section, and 20 is an artwork data creation section. 21 is an image data input section, 22 is an attribute interpretation section, 23 is a correspondence table, and 24 is a correspondence table search section. 25 is an intermediate data output section, and 26 is a drawing optimization section. 27 represents a command conversion output section. Patent Applicant Fujitsu Ltd. Representative Patent Attorney Mori1) Hiroshi (1 other person) 1-2 Zen (B) Sai30 (B) A A 6 ゐ i δ

Claims (1)

[Claims] In a board artwork data creation processing device that creates artwork data to be given to an exposure device that creates a film used when etching a wiring pattern on a printed circuit board, at least two-dimensional line information and arc information are processed together with their attribute information. an image data processing unit that inputs and edits the image data; and an image that inputs the image data edited by the image data processing unit and extracts graphic elements consisting of each of the above line information or each of the arc information and attribute information corresponding thereto. a data input section, an attribute correspondence processing section that associates attribute information regarding the graphic element extracted by the image data input section with a drawing command for controlling an exposure device related to the thickness of a lead line, the type of land, etc.; A command conversion output unit that edits and outputs drawing commands based on the information associated by the correspondence processing unit and coordinate information of graphic elements, and creates artwork data from two-dimensional image data. Board artwork data creation processing device.