JPH0520399A - Design method for printed circuit board - Google Patents

Abstract

PURPOSE:To provide the design method for the economical printed circuit board reducing working man-hour and mistakes by deciding a circuit having a plurarity of specific functions for general use as a common module. CONSTITUTION:At the time of starting the design of the printed circuit board, the optimum common module is selected from a plurarity of common modules in S31, then the arrangement coordinate is supplied to the module origin of the common module selected in S32 and the parts arrangement coordinate of each parts in the module is calculated and outputted as a mounting common module 23. Then, in S33, the coordinate-calculated mounting common module 23 is developed in a circuit diagram DB21 of the entire circuit and outputted as a new circuit diagram DB24. In S34, the wiring processing of the parts of the circuit parts other than the common module and the design of the wiring processing and electric wiring graphic are performed, developed with the circuit diagram DB24, and outputted as the final circuit diagram DB25.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for designing a printed wiring board, and more particularly to a method for designing a printed wiring board for designing an electric wiring pattern for connecting a plurality of components using a computer.

[0002]

2. Description of the Related Art The conventional method of designing a printed wiring board is carried out one by one, and even if a part of the circuit has the same functional part, only part of it is taken out from the already designed design data and diverted. Since it is not designed to be designed, new layout and wiring design has been done for all mounted components.

[0003]

The above-described conventional method for designing a printed wiring board is designed so that even if a part of a circuit has the same functional portion, only a part of the already designed design data is extracted and reused. Is not configured to
There is a problem in that the previous data cannot be used for complicated route changes, and the same work is repeated for the same functional part even at the time of revision, resulting in an increase in work man-hours and a large number of work mistakes.

An object of the present invention is to define a circuit having a plurality of specific functions that can be used universally as a common module, and share design data of component placement and wiring, thereby reducing the number of man-hours and mistakes in work. It is to provide a reduced economical printed wiring board design method.

[0005]

A method for designing a printed wiring board according to the present invention is designed to design an electric wiring pattern for connecting a plurality of components mounted by transferring and reproducing with a metal having good electrical conductivity on an outer layer or an inner layer of an electrically insulating substrate. In the printed wiring board design method, the circuits having a plurality of specific functions are defined as common modules in advance, and the arrangement of the components that make up the plurality of common modules and the wiring between the components are converted into data as common module data. Storing, selecting an optimum common module from the plurality of common modules when designing the electric wiring pattern, calculating the coordinates of the arrangement of components on the electric insulating substrate using the common module data, and The common module for mounting whose coordinates have been calculated is expanded in the database of the entire circuit, and other than the common modules In conjunction with the common modules developed earlier in the database of the entire circuit to design of the electric wiring pattern of the road section is configured to deploy.

[0006]

Embodiments of the present invention will now be described with reference to the drawings.

FIG. 2 is a plan view showing an example of mounting a common module used in the present invention.

The common module 1 includes design information regarding the component names of the plurality of mounting components 2, component mounting directions, and component arrangement coordinates, and design information regarding wiring for connecting the respective components, and identifies the position of each component. The value of the component arrangement coordinate of the determined component origin 3 is given as an offset value from the module origin 4 which is the reference of the common module 1.

FIG. 3 is a plan view showing an example of a printed wiring board on which a common module is mounted.

On the substrate 5, there are a region of the common module 1 and a component placement region 6 other than the common module.

Next, the operation will be described.

FIG. 1 is a flow chart of one embodiment of the present invention.

Design information of a circuit having a plurality of specific functions is defined in advance as common modules 11, 12 and 13, respectively, and an entire circuit database (hereinafter referred to as a circuit diagram) for expanding data of an entire circuit arranged in a board is provided. 21) and the arrangement coordinates 22 given to the module origin are prepared.

First, at the start of designing a printed wiring board, an optimum common module is selected from a plurality of common modules in step (hereinafter referred to as S) 31, and then the module origin of the common module selected in S32 is set. Arrangement coordinates are given and the component arrangement coordinates of each component in the module are calculated and output as the mounting common module 23. Next, the mounting common module 23 whose coordinates have been calculated in S33 is developed in the circuit diagram DB21 of the entire circuit and is output as a new circuit diagram DB24, and subsequently in S34, the placement process and wiring process of the components of the circuit part other than the common module are performed. Then, the electrical wiring pattern is designed and developed together with the previously developed circuit diagram DB 24 and output as the final circuit diagram DB 25.

[0015]

As described above, according to the present invention, a circuit having a plurality of specific functions is defined as a common module in advance, and the arrangement of the components constituting the plurality of common modules and the wiring between the components are data. Each of them is stored as common module data, and when designing the electrical wiring pattern, the optimum common module is selected from a plurality of common modules, and the arrangement of components on the electrically insulating board is calculated using the common module data. , The coordinate-calculated common module is expanded in the database of the whole circuit, the electrical wiring figure of the circuit part other than the common modules is designed, and it is expanded in the database of the whole circuit together with the common module previously expanded. Thus, there is an effect that the man-hours and mistakes of the work can be reduced and the economical efficiency can be measured.

[Brief description of drawings]

FIG. 1 is a flow chart of one embodiment of the present invention.

FIG. 2 is a plan view showing an example of mounting a common module used in the present invention.

FIG. 3 is a plan view showing an example of a printed wiring board on which a common module is mounted.

[Explanation of symbols]

1, 11, 12, 13 Common module 2 Mounting component 3 Component origin 4 Module origin 5 Board 6 Component placement area other than common module 21, 24, 25 Overall circuit database (Circuit diagram D
B) 22 placement coordinates 23 common module for mounting

Claims (1)

Claim: What is claimed is: 1. A method for designing a printed wiring board for designing an electric wiring pattern for connecting a plurality of components mounted by transferring and reproducing with a good conductive metal on an outer layer or an inner layer of an electrically insulating substrate. Designing circuits having a plurality of specific functions as common modules in advance, arranging the components that compose the plurality of common modules and wiring between these components, and storing them as common module data, respectively, and designing the electric wiring pattern. Sometimes, an optimum common module is selected from the plurality of common modules, the arrangement of components on the electrically insulating substrate is coordinate-calculated using the common module data, and the coordinate-calculated mounting common module as a whole is calculated. It is developed in the circuit database and the electrical wiring pattern of the circuit part other than the common modules is designed. Design method of a printed wiring board, which comprises deploying in conjunction with the common modules developed earlier in the database of the entire circuit.