JPH02139670A - Printed board cad system - Google Patents

Abstract

PURPOSE:To easily design both a printed board and a hybrid IC and to easily mount the hybrid IC on the printed board by equipping the same program with a printed board designing function and a hybrid IC designing function, supplying two types of designing menus to the program, and using the menus under the same operation environment. CONSTITUTION:Data inputted from an input device 2 are inputted to a menu command analyzing part 3, processing corresponding to each command is executed for the data, and the processed data are displayed through a screen display part 5 on a display 6. Further, for an interactive program, both a printed board designing menu and a hybrid IC designing menu are respectively composed of an exclusive-use command and a common command, and the menus can be selected according to the type of the substrate. Thus, the substrates respectively having different properties can be formed, and the designing in which the hybrid IC substrate is mounted on the printed board can be also executed by using the plural menus in the same program.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention is suitable for designing and manufacturing a hybrid IC board in a CAD system that can design and manufacture printed circuit boards.

[Conventional technology]

A hybrid IC is a double-sided through-hole board mixed with discrete components such as chip components and flat package ICs, and can be handled in the same way as regular IC components.

Currently, this hybrid IC is advantageous for constructing high voltage/high current circuits, and is used in a wide range of fields, mainly in consumer equipment such as VTRs.

The manufacturing of hybrid ICs is completely different from the manufacturing of general printed circuit boards due to the types and materials of the components to be mounted. The manufacturing of printed circuit boards involves etching a copper plate and inserting components onto the processed board.
Hybrid IC boards are manufactured by forming paste components such as resistors and capacitors on a ceramic substrate using a paste-like substance, and then attaching chip components and the like.

Therefore, in the conventional CAD system,
No. 17 of ``High Density Printed Wiring Board Technology'' published in May 2016.
Printed circuit board design CAD as shown on pages 0 to 173
System and hybrid ■Board design CAD system 2
There were different types, each with an independent design form.

However, as the density of printed circuit boards increases, hybrid ICs are increasingly being mounted on printed circuit boards, and when designing such boards, it becomes difficult to design them on a conventional independent system.

[Problem to be solved by the invention]

In the above conventional technology, the printed circuit board design CAD system and the hybrid IC board design CAD system have independent configurations, and the data files used for each,
Hybrid ICs with different system operating environments, etc.
It was difficult to mount the board onto a printed circuit board.

The present invention takes the above points into consideration, and provides a CAD system that can design both printed circuit boards and hybrid IC boards.
The goal is to provide a system.

[Means to solve the problem]

The above purpose is to integrate printed circuit board design functions and hybrid IC into the same program (for example, an interactive implementation design program).
This is achieved by having a design function and having two types of menus used during design, a menu for printed circuit board design and a menu for hybrid IC design, and using them in the same operating environment.

[Effect]

FIG. 2 shows a schematic flow of the hybrid IC board design process. First, create the shape and information of the component to be used in advance and register it in the component library (Figure 2 (1)).The function shown in Figure 2 (2) is used when mounting hybrid IC components on a printed circuit board. It calls the drawing data of the hybrid IC board that has already been created, and is used for designing printed circuit boards that include hybrid IC parts. Figure 2 (3), (
4) is the main part of board design, including component placement and pattern design in packaging design. When designing this implementation, the menu can be changed depending on the board to be created. When creating each board, use a dedicated menu. By using the same program with multiple menus in this way, it is possible to create boards with different properties. FIGS. 2(5) and 2(6) show that manufacturing information of photo data is output from the completed mounting drawing.

〔Example〕

Hereinafter, a dialog program will be mainly described as an embodiment of the present invention. The system configuration diagram is shown in Figure 1. Data input from an input device such as a digitizer or stylus pen enters the menu command analysis section, where processing corresponding to each command is performed and displayed on the screen through the screen display section.

Two types of menus are available for this interactive program. These are a printed board design menu and a hybrid IC design menu, each consisting of dedicated commands and common commands.

Next, FIG. 3 shows the flow centered on command numbers.

(1) Select the menu depending on the type of board.

The selected menu is loaded at system startup. Menu guidance is displayed on the screen through the screen display, and the user uses an input device to instruct menu commands.

(2) Each command on the menu is assigned a command number, and when the command is displayed, the command number is imported into the computer.

(3) Determine whether the command number imported in (2) is a dedicated command or a common command.

(4) Even if this command is a common command, if the processing is slightly different between the printed circuit board and the hybrid IC board, it will be necessary to distribute the processing internally. in this case,
It is necessary to determine whether the drawing is one or the other.

The drawing data consists of drawing information, screen name, drawing flag, as shown in FIG.

This drawing flag is '1' if it is a drawing of a printed circuit board,
If it is a drawing of a hybrid IC board, 101 is set. Therefore, the above problems can be solved by inserting the drawing flag determination process into the common command processing section.

(5) Dedicated commands are not shared, so drawing determination processing is not necessary.

(6) These dedicated commands and common commands.

This will continue until the system shuts down.

This embodiment has the advantage that drawings with different properties can be created by controlling the same program with a menu depending on the purpose.

〔Effect of the invention〕

According to the present invention, the same system (specifically, language and dialogue program) can be used not only for printed circuit board design and hybrid IC design, but also for hybrid IC design on printed circuit boards.
It can be mounted freely and has the effect of providing a CAD system that is compact and capable of high-density board design.

[Brief explanation of the drawing]

Fig. 1 is a structural diagram of a system according to an embodiment of the present invention, Fig. 2 is an explanatory diagram showing the board creation procedure, Fig. 3 is an explanatory diagram showing the processing procedure of the present invention, and Fig. 4 is drawing data. Structural diagram I
ZQ^3゜1...CPU, 2...Input device, 3
...Menu command analysis section, 4...Memory, 5.
...Screen display unit, 6...Display, 7...Data processing unit. Akira 50 Akira 20 Itl information

Claims (1)

[Claims] 1. In a design support system that uses menus that display multiple data side by side for easy viewing, menus for printed circuit board design and hybrid IC are used for mounting design for mounting IC components, discrete components, etc. on a board.
A printed board CAD system is provided with two types of menus for board design, has a mounting design program that can be operated in either menu, and is capable of outputting manufacturing information necessary for creating a board.