JP2879851B2 - Wiring data creation method and device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Summary] The present invention relates to a method and an apparatus for creating wiring data, which creates pattern wiring data of a printed circuit board from already-manufactured manufacturing interface data. The manufacturing interface data, which is a set of control commands and coordinate data of pattern data and via data, which has already been created by manual design, and component placement information indicating a component placement position in a non-wiring state on a printed circuit board are stored. A pattern information including line and via coordinate data is input from the manufacturing interface data, and the pattern information and the component arrangement information from the arranged master file are used as coordinates of the pattern information. Edit using the data and the component placement position of the component placement information Then, pattern wiring data, which is electronic data of wiring on a printed circuit board on which component placement and wiring between components are completed, is created, and the created pattern wiring data is stored in a master file.

[Industrial applications]

The present invention relates to a method and an apparatus for creating wiring data, and more particularly, to a method and an apparatus for creating wiring data for creating pattern wiring data of a printed circuit board from already created manufacturing interface data.

Pattern wiring data on printed circuit boards is becoming increasingly difficult to handle even with computer aided design (CAD) systems due to the increased density of the boards and the strictness of wiring conditions. Wiring methods are also used for making some special ones or ultra-high density substrates. In addition, at present the production of printed circuit boards by hand design is still being performed.
A pattern wiring method by fully automation has not been actually completed yet. For this reason, it is necessary to minimize the intervention by humans as much as possible, and to shorten the time required for substrate production and improve the quality.

[Conventional technology]

FIG. 3 is an explanatory view of a processing step using a conventional wiring data creation method. First, based on the connection information and the circuit information of the circuit diagram 1 created in the circuit design process, the pattern wiring 2 by hand design is performed while being restricted by the manufacturing conditions. Next, the pattern wiring data manually created by the human is input to a digitizing system as shown by 3 in FIG. 3, and pattern data, via data, etc. are created by a simple CAD system called the digitizing system. Then, general manufacturing interface data (referred to as Gerber data) 4, which is a set of control commands and coordinate data, is created.

The Gerber data 4 is sent to a printed circuit board manufacturer as manufacturing data (step 5 in FIG. 3), where a product, that is, a printed circuit board is created (step 6 in FIG. 3). This product, that is, a printed circuit board, is a flat plate on which no circuit components have been mounted yet, which is delivered to the maker who created the circuit diagram 1, and in which a circuit component such as an integrated circuit is mounted at the assembly factory to form a final product. Become. As described above, conventionally, wiring data of a printed circuit board is manually created, completed by a digitizing system, and becomes Gerber data.

[Problems to be solved by the invention]

However, in the design of printed circuit boards, remodeling processing and revision processing using existing design data always occur.Pattern cutting data, part addition / change data, It may be necessary to create version management data. With respect to the above-mentioned remodeling processing data, it is necessary to remodel the board itself manufactured by the board maker, and it is necessary to request pattern wiring by manual design, and the product price becomes expensive.

On the other hand, pattern cutting data, component addition / change data, and various version number management data can be created or cut at the assembly factory where components are mounted on the board, since it is not necessary to change the board itself. Since the process from the pattern wiring process 2 by hand design to the product creation process 6 takes the form of outsourcing as viewed from the circuit diagram creation side (assembly factory side), the Gerber data 4 once created is only output as a manufacturing interface and stored. Not done.

Therefore, when creating the above-mentioned addition / change data of parts, various version number management data, and the like, various change materials are manually created on the circuit diagram creation side as shown in FIG. A change 8 at the factory must be performed.
For this reason, it takes time to complete a printed circuit board assembled in an assembly factory, and there is a problem in quality due to handwriting processing.

The present invention has been made in view of the above points, and an object of the present invention is to provide a method and an apparatus for creating wiring data that can reduce the time required for creating a substrate and improve the quality.

[Means for solving the problem]

FIG. 1 is a diagram illustrating the principle of the present invention. The present invention has a first storage unit which has already been created by manual design and stores manufacturing interface data 10 which is a set of control commands and coordinate data of pattern data and via data,
An input unit 11 for inputting pattern information including line and via coordinate data from the manufacturing interface data 10 of the first storage unit, and component arrangement information indicating an unwired component arrangement position on a printed circuit board are stored. The second storage means storing the placed master file 12 and the pattern information from the input means 11 and the component placement information from the placed master file 12 in the second storage means are coordinate data of the pattern information. By using the component placement information of the component placement information to create pattern wiring data, which is electronic data of printed circuit board wiring on which component placement and wiring between components have been completed, the created pattern wiring data is stored in the master file 14. And an editing means 13 for storing the information.

[Action]

In the present invention, the pattern information and the component information created by digitizing input and the like are edited to store the wiring data of the component arrangement and the pattern wiring in the master file 14. As a pre-designed data file, it is possible to systematically compare it with the latest master file, which enables CAD output of various manufacturing data to be realized.

〔Example〕

FIG. 2 is an explanatory view of a processing step using one embodiment of the method of the present invention. 3, the same components as those in FIG. 3 are denoted by the same reference numerals, and the description thereof will be omitted. In FIG. 2, the Gerber data 4 corresponds to the manufacturing interface data 10 described above. The steps up to the creation of the Gerber data 4 are the same as those in the related art, and the Gerber data 4 is created by the manually designed pattern wiring maker. You. Therefore, the Gerber data is transferred to the board maker in the same manner as in the prior art. In the present embodiment, the Gerber data 4 is transferred to the circuit diagram design side (assembly process side). The master file 25 is created through the steps.

The Gerber data 4 is a set of control commands and coordinate data, and has, for example, the following contents.

D12 * D03 * X2345Y222 * ... * ... * D14 * D01 * X111Y111 * X333 * D02 *-Here, "D12" in the above data indicates the drill hole diameter,
“D03” indicates control data for performing exposure processing as via information of via data, and “X2344” and “Y222” indicate XY coordinate values of a position to be exposed. “D14” indicates the line information of the pattern data, and indicates coordinate values for drawing a line in the range of “D01, D02”.

Reference numeral 21 denotes an input section for inputting the type and coordinates of vias and patterns, which corresponds to the input means 11, and includes via information including coordinate data such as via types, drill hole diameters, exposure coordinates, etc. Is input to the computer, including line information including coordinate data such as the line width and the coordinate layer type of FROM-TO.

The data input by the input unit 21 is processed by the creation processing unit 22 of data for development into the next master file, by creating a data table of line information and via information of each layer unit,
After arranging the data contents for development into the next master file (creating the master file 14), the import processing unit 23 into the arranged master file performs the above-mentioned line information and via conversion into the data table. Various pattern information is edited based on the information and the component arrangement information indicating the component arrangement position in the unwiring state on the printed circuit board from the arranged master file 12. In this editing, when the coordinate data included in the pattern information of the line information and the via information and the component arrangement position of the arranged master file 12 match, the matched pattern is associated with the component. Pattern wiring data (data in which the layout positions of the components are associated with the coordinates of the wiring or vias connecting the components and the wiring) are created. The above processing units 22 and 23 constitute the above-mentioned editing means 13.

The pattern wiring data of the printed circuit board on which the component arrangement and the wiring between the components are completed, which is created by the processing unit 23, that is, the data associating the arrangement positions of the components with the coordinates of the wirings and vias connecting the components, are stored in the master file 14. Then, as shown by 24 in FIG. 2, the pattern information for assigning a network number to each pattern is converted into a net, and then stored in the master file 25. Thereby, the master file 25 becomes a completed master file.

By the way, when the wiring data stored in the completed master file 25 is changed, the master file 25 is set as a pre-designed data file as shown in FIG. Prepare the latest data file 26 modified by the change,
Remodeling / revision automatic processing unit 27 by CAD system
Each data comparison of one master file 25, 26 can be automatically performed.

As a result, the remodeling / revision automatic processing unit 27 outputs CAD data of various manufacturing data such as a pattern cut diagram, a mounting diagram, and version number management information. Therefore, in this embodiment, if there is a data change, the quality and reliability of the printed circuit board can be improved by automation using a CAD system, the design work can be made more efficient, and the outsourcing accompanying the revision is performed. Since it is not necessary, the cost of the finished product can be greatly reduced. Remodeling with board change must be performed by the board maker as before, but in this case, the remodeling data created by the CAD system can be passed to the board maker, which can contribute to product cost reduction .

〔The invention's effect〕

As described above, according to the present invention, since a master file can be created by inputting manufacturing interface data created by hand design, remodeling and edition processing can be automatically performed on a printed circuit board already created. Because
Remodeling and revision can be easily performed by expanding the processing range of the CAD system, and the quality and reliability of the completed printed circuit board can be improved compared to the past, and furthermore, it contributes to lower product prices. It has features such as

[Brief description of the drawings]

FIG. 1 is an explanatory view of the principle of the present invention, FIG. 2 is an explanatory view of a processing step using an embodiment of the method of the present invention, and FIG. 3 is an explanatory view of a processing step using a conventional method. In the figure, 4 is Gerber data, 10 is manufacturing interface data, 11 is input means, 12 is a master file with parts arranged, 13 is editing means, and 14 is a master file with parts arranged and pattern wired.

Continuation of front page (56) References JP-A-58-219665 (JP, A) JP-A-1-232476 (JP, A) JP-A-63-217700 (JP, A) JP-A-1-315876 (JP) , A) IEEE Transactions on Maufacturing Technology, no. 1. MF T-3 No. 2, P88-95, M.P. Honda et al. , "A Tech of the Automatic Engineering Chauget Moutier Layer Priused-Circuit Baddrs"

Claims (2)

(57) [Claims] 1. A manufacturing interface data (10) which is already created by manual design and is a set of control commands and coordinate data of pattern data and via data, and represents an unwired component arrangement position on a printed circuit board. An arranged master file (12) storing component arrangement information is provided. Pattern information including line and via coordinate data is input from the manufacturing interface data (10), and the pattern information and the arranged master file are input. The component placement information from (12) is edited using the coordinate data of the pattern information and the component placement position of the component placement information, and is electronic data of the wiring of the printed circuit board in which component placement and wiring between components are completed. Creates pattern wiring data and stores the created pattern wiring data in the master file (14). Wiring data creation method to be. 2. A first storage means which has already been created by manual design and stores manufacturing interface data (10) which is a set of control commands and coordinate data of pattern data and via data, and said first storage. Means of manufacturing interface data (1
Input means (11) for inputting pattern information including coordinate data of lines and vias from (0), and a wired master file (12) storing component arrangement information indicating an unwired component arrangement position on a printed circuit board. ), And the pattern information from the input means (11) and the component arrangement information from the arranged master file (12) of the second storage means are stored as coordinate data of the pattern information. By using the component placement position of the component placement information to edit the pattern placement data, which is electronic data of the wiring of the printed circuit board on which the component placement and the wiring between the components have been completed, the created pattern wiring data is stored in the master file (14). ), And an editing means (13) for storing the data in the wiring data creating apparatus.