JPH06162137A - Screen display designing device - Google Patents

Abstract

PURPOSE:To shorten the operation time for design arrangement by automatically selecting a necessary number of capacitors corresponding to necessary integrated circuit components when the integrated circuit components are arranged, and arranging the capacitors at proper positions nearby the integrated circuit components simultaneously with the arrangement of the integrated circuit components. CONSTITUTION:Design data including the integrated circuit components are selected from a data base holding means 1 and displayed in a non-wiring formation area 3c on the screen display surface 3 of a display means 2. Then the integrated circuit components are selected among the design data including the integrated circuit components selectively displayed in the non-wiring formation area 3c with a mouse as a batch design data moving means 5, the mouse is moved to the desired position of a wiring formation area 3b and then the integrated circuit components are moved to and arranged in the wiring formation area 3b. Then, the capacitors for power source stabilization corresponding to the integrated circuit components are automatically selected from a capacitor group selectively displayed in the non-wiring formation area 3c incidentally to the movement and arrangement and moved and arranged by the clicking of the mouse.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screen display designing apparatus, and in particular, it selects information on integrated circuit parts (IC parts, etc.) and power supply voltage stabilizing capacitors matching these integrated circuit parts from a database, and integrates them. The present invention relates to a screen display design device for moving and arranging and displaying.

[0002]

2. Description of the Related Art In order to cope with so-called lightness, thinness, shortness, miniaturization and the like, for example, in a design using a micron unit such as a design of a mounting circuit pattern, a CAD (Computer
An image display design method called "data aided design or computer-aided design support" is widely used. That is, the CAD design support system stores the data of individual required components, such as integrated circuit components and capacitors, from the database in which the integrated circuit component data and the design data including capacitors for stabilizing the power supply voltage are input in advance. , And move and arrange them one by one on the screen display surface to design the layout of the printed wiring board (mounted circuit device). More specifically, for example, in the case of a printed wiring board, a wiring formation area (product area) is first set on the screen display surface of the image display means, and then a peripheral portion (non-wiring formation area) of this wiring formation area is set. ), The required part information is selected and temporarily arranged by the design data selecting means from the database previously input to the database holding means, and these pieces of part information (type of parts / arrangement position) are connected information ( The screen display design is performed by means of sequentially moving and arranging predetermined component information in the wiring formation area for each individual, based on (interconnection between components to be connected / arrangement position). In this screen display design, generally, for example, integrated circuit components are preferentially moved / arranged, and thereafter, in order to keep the power supply voltage supplied to the integrated circuit components stable, the integrated circuit components are matched with the integrated circuit components. Capacitor near integrated circuit parts (periphery)
We have adopted a system for moving and arranging.

[0003]

However, the conventional screen display designing apparatus or system described above has the following inconvenient problems. That is, when the integrated circuit component (IC component or the like) selected from the database is moved / placed preferentially in the wiring forming area on the screen display surface, and then the capacitor for stabilizing the power supply voltage also selected from the database is moved / placed, Move preferentially in consideration of planned wiring traces to the integrated circuit parts and other planned wiring traces.
Since the placed integrated circuit parts interfere with the planned wiring trajectory of the capacitors to be moved / placed later (impeding), it is often necessary to move / place the integrated circuit parts again, and sometimes the capacitors are omitted. In some cases, there is no choice but to design. Such problems result in changes in the design / placement that the designer originally intended, and in addition, the difficulty of wiring / designing circuit components that have been moved / placed leads to design work time Not only increases the design modification work time, etc., but also omits the capacitor, which poses a problem in terms of electrical reliability.

The present invention has been made in consideration of the above circumstances, and it is possible to efficiently move and arrange integrated circuit parts (for example, IC parts) and the like, and easily and easily without requiring complicated operations.
It is an object of the present invention to provide a screen display design device capable of designing mounted circuits and the like.

[0005]

A screen display designing apparatus according to the present invention includes a database holding unit for inputting and holding design information including part data, an integrated circuit component required from the database holding unit, and this integrated circuit component. Design data selecting means for selecting design data including a capacitor matching with, screen displaying means for displaying the design data selected by the selecting means in a non-wiring forming area on the screen display surface, and non-wiring forming on the screen display surface The integrated data moving means for collectively moving and arranging the data of the integrated circuit component system forming a pair out of the design data displayed in the area to the wiring forming area of the screen display surface and displaying the data. Characterize.

[0006]

According to the above screen display designing apparatus of the present invention, when an arbitrary integrated circuit component held by the database holding means as data is moved / arranged on the image display surface for display, the voltage supplied to the integrated circuit component is displayed. While the stabilizing capacitor is selected, it is moved / placed / displayed in association with the movement / placement / display of the integrated circuit component. In other words, when moving and arranging each integrated circuit component, the matching supply voltage stabilizing capacitors are also collectively (integrally) moved and placed at the proper position in consideration of the wiring locus, etc. It is possible to largely avoid design modifications including wiring traces at the end of design.

[0007]

Embodiments of the present invention will be described below with reference to FIGS.

FIG. 1 is a block diagram showing an outline of the configuration of a screen display designing apparatus according to the present invention, and FIGS. 2 to 8 schematically show examples of usage of the screen display designing apparatus according to the present invention. First, in FIG. 1, 1 is a database holding means for holding design data including integrated circuit parts, and 2 is a screen display for selecting and displaying design data corresponding to a predetermined area from the design data held by the database holding means 1. Surface 3
Screen display means (display means), 4 is a database input section for inputting required design data to the database holding means 1, and 5 is each integrated from the design data selected from the design data of the integrated circuit component system. This is a collective design data moving means for collectively moving and arranging circuit component system data in a product area (wiring board area) on the screen display surface. Here, the screen display surface 3 of the screen (display) display means 2 is divided into a so-called wiring forming area (wiring board area) 3b and a non-wiring forming area (non-wiring board area) 3c by an outline 3a. , Temporarily select design data including the required integrated circuit parts in the non-wiring formation area 3c.
The required circuit is designed by sequentially moving and arranging the displayed design data selected and displayed in the non-wiring formation region 3c in the wiring formation region 3b one after another.

Next, the operation of the screen display designing device having the above configuration,
Or, a usage example will be described.

First, prior to the description of the specific example, the outline of the processing will be described with reference to FIG. 2. The processing request from the input section is analyzed by the processing analysis section, and the analyzed processing is executed by the processing execution section. To be done. In this processing execution section, D / B access section → D / B →
The data of the integrated circuit parts to be moved / placed and the data of the capacitors attached to the integrated circuit parts are taken out through the route of the D / B access part. Here, the data necessary for selecting a capacitor in the integrated circuit component data are derived at the same time from the capacitor (component) selection rule, and the derived placement position of the capacitor is also derived. Operation is the processing execution section →
D / B access part → D / B → D / B access part → process execution part is repeated (required number of capacitors). In this way, by providing the information of each capacitor to which the placement data is added as the attribute information of the integrated circuit component, the capacitor selected as the one associated with the integrated circuit component is also associated with the placement position of the integrated circuit component. Are placed in a predetermined position.

On the other hand, regarding the processing operation, corresponding data is sent from the processing executing unit to the display unit in real time, and the states of the integrated circuit parts and the selected capacitors are displayed on the display based on this data. Therefore, it is possible to determine the arrangement position of a predetermined integrated circuit component and an accompanying capacitor while confirming the selection and dragging of the component displayed on this display.

Next, FIGS. 3 to 5 show a case of a circuit design in which an integrated circuit component of 14 pins is arranged. First, as shown in FIG. 3, the design data including the required integrated circuit component from the database holding means 1 is obtained. To display the display means 2
It is displayed in the non-wiring formation area 3c of the screen display surface 3 of. Thereafter, for example, the integrated circuit component 6a is selected from the design data including the integrated circuit component 6 selected and displayed in the non-wiring formation region 3c by a collective design data moving (arranging) means 5, for example, a mouse, When the cursor 5a of the mouse is moved to a desired position in the wiring forming area 3b, the integrated circuit component 6a is moved and arranged in the wiring forming area 3b as shown in FIG. Along with the movement / arrangement of the integrated circuit component 6a to the wiring forming region 3b, the power source stabilizing capacitor 7a corresponding (matching) to the integrated circuit component 6a is also selected / displayed in the non-wiring forming region 3c. The selected capacitors are automatically selected, and the mouse is moved to the desired position by clicking the mouse.

By repeating such an operation for each integrated circuit component 6, that is, each integrated circuit component 6a, 6b, 6
By sequentially moving and arranging c and 6d and the corresponding capacitors 7a, 7b, 7c and 7d as a pair, respectively, the components can be arranged efficiently as shown in FIG.

Further, FIGS. 6 to 8 show a case of a circuit design in which a 180-pin integrated circuit component (PAG: pin grid array) and a 14-pin integrated circuit component are arranged. As shown in FIG. Design data including a required integrated circuit component is selected from 1 and displayed in the non-wiring formation region 3c of the screen display surface 3 of the display display means 2. afterwards,
Integrated circuit parts selected / displayed in the non-wiring formation region 3c
From the design data including 8a, first, the integrated circuit component 8a is selected by collective design data moving means 5, for example, a mouse, and the cursor 5a of the mouse is moved to a desired position in the wiring board formation area 3b. As shown in 7, integrated circuit parts
8a is moved and arranged in the wiring formation region 3b. Then, accompanying the movement / arrangement of the integrated circuit component 8a to the wiring forming region 3b, the power source stabilizing capacitors 9a, 9b, 9c, 9d corresponding (matching) to the integrated circuit component 8a are also formed by the non-wiring formation. Area 3c
The capacitors are automatically selected from the capacitors selected and displayed on the screen, and the mouse is moved to the desired position by clicking the mouse.

Such operation is performed by the integrated circuit components 8a and 6
By repeating every a, 6b, that is, each integrated circuit component 8a, 6a, 6b and corresponding each capacitor 9a, 9b, 9
By sequentially moving and arranging c, 9d, 7a, and 7b as a pair, respectively, the components can be efficiently arranged as shown in FIG.

[0016]

As described above, the image display designing apparatus according to the present invention is a component layout design in a layout design.
When arranging a required integrated circuit component, the required number of corresponding (matching) capacitors for keeping the power supply voltage supplied to this integrated circuit component is automatically selected, and the integrated circuit is arranged at the time of arranging the integrated circuit component. It is configured so that it can be placed at an appropriate position near the parts at the same time. In other words, it forms a system that supports top-down structural component layout design, and also allows integrated circuit components and capacitors that form a pair with them to be collectively (integrally) moved and placed. Therefore, the layout change and the design modification can be reduced, and the work time of the design layout can be shortened. If I mention further,
The risk of problems such as moving and arranging components that have been placed once is largely eliminated, and it is easy to secure the placement of the components that was originally intended, so omission of capacitor placement is avoided and the electrical reliability of the circuit is improved. You can raise.

[Brief description of drawings]

FIG. 1 is a block diagram showing a main configuration of a screen display design device according to the present invention.

FIG. 2 is a block diagram for explaining an outline of processing by the screen display designing apparatus according to the present invention.

FIG. 3 is a plan view schematically showing a state in which required parts are selected from a database and displayed in a non-wiring formation area of the display by the screen display designing apparatus according to the present invention.

FIG. 4 is a plan view schematically showing a state in which a part of the component data displayed in the non-wiring formation area of the screen display surface is displayed in the wiring formation area of the screen display surface by the screen display design device according to the present invention.

FIG. 5 is a plan view schematically showing a state in which all of the component data displayed in the non-wiring formation area on the screen display surface is displayed in the wiring formation area on the screen display surface by the screen display design apparatus according to the present invention.

FIG. 6 is a plan view schematically showing another state in which required parts are selected from the database and displayed in the non-wiring formation area of the screen display surface by the screen display design device according to the present invention.

FIG. 7 is a plan view schematically showing another state in which a part of the component data displayed in the non-wiring formation area of the screen display surface by the screen display designing apparatus according to the present invention is displayed in the wiring formation area of the screen display surface. Fig.

FIG. 8 is a plan view schematically showing another state in which all of the component data displayed in the non-wiring formation area of the screen display surface by the screen display designing apparatus according to the present invention is displayed in the wiring formation area of the screen display surface. .

[Explanation of symbols]

1 ... Database holding means 2 ... Screen display surface (display) 3 ... Image display section 3a ... Outline line 3b ... Wiring board area (product area) 3c ... Non-wiring board area 4 ... Database input section 5 ... Collective design data movement・ Arrangement means (mouse) 5a ... Mouse cursor
6, 6a, 6b, 6c, 8a ... Integrated circuit components 7, 7a, 7b, 7
c, 9a, 9b, 9c, 9d ... capacitors

Claims (1)

[Claims] 1. A database holding means for inputting and holding design information including each component data, and design data for selecting design data including a required integrated circuit component and a capacitor matching the integrated circuit component from the database holding means. A selection means, a screen display means for displaying the design data selected by the design data selection means in the non-wiring formation area of the screen display surface, and a pair of design data displayed in the non-wiring formation area of the screen display surface. A screen display design apparatus comprising: a batch data moving means for collectively moving and arranging integrated circuit component system data in a wiring forming area of a screen display surface and displaying the data.