JPH09171525A - Device for plotting lsi layout data - Google Patents

Abstract

PROBLEM TO BE SOLVED: To confirm the overlapped degree of data between two optional layers by executing processing for applying colors/patterns stored in a color/pattern storing part only for layers of which plotting is specified and successively outputting and plotting layers colored/patterned as the processing result on a display device. SOLUTION: A plotting layer order setting part 309 specifies plotting order through an input device 2 and stores the plotting order in a plotting layer order storing part 310. A plotting layer storing part 308 executes processing for applying colors/patterns stored in the color/pattern storing part 106 only for layers of which plotting is specified and outputs and displays the pictures of the colored/patterned layers to be the processed results on a display device 4 successively from the lowermost layer superposed at the time of preparing an LSI in accordance with the plotting order stored in the storing part 310. Consequently the overlapped degree of data between two optional layers can be converted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an LSI layout data drawing device, and more particularly to an LSI layout data drawing device used when visually confirming the degree of overlap of arbitrary layers in LSI layout data on a screen.

[0002]

2. Description of the Related Art A conventional LSI layout data drawing device of this type has an input device including a file 1 such as a magnetic disk for storing LSI layout data and a keyboard as shown in the block diagram of FIG. 2, a data input / output unit 301, a data storage unit 302 such as a magnetic disk for storing LSI layout data, a drawing area setting unit 303, a drawing area storage unit 304, a color / pattern setting unit 305, a color / pattern storage unit 306, a drawing layer setting unit 307,
It includes a drawing layer storage unit 308 and a display processing unit 311, and is configured to include a data processing device 3 that operates under program control and a display device 4.

In FIG. 3, the LSI layout data stored in the file 1 is formed as collective data including graphic information such as the position of a graphic on the LSI layout, the size of the graphic, and the shape of the graphic. .
Data including these graphic information are classified and stored in a plurality of layers in the file 1, and when the LSI is manufactured by the LSI manufacturing apparatus, the graphic information of each layer is used to store different types of data. 2. Description of the Related Art LSI manufacturing is carried out through repeated steps such as spraying metal and partially melting sprayed metal. In the above manufacturing process, in order to accurately select the layers to be processed in each process and to determine the order of the layers to be processed in the process of manufacturing an LSI, the layers to be processed are Is
An identification number and a name are attached to each, and the storage position including the layer arrangement position of each data is stored so as to be clearly divided by the identification number and the name of the data. The conventional example will be described below with reference to FIGS. 3 and 4.

In FIG. 3, a data input / output unit 301, a data storage unit 302, a drawing area setting unit 303, a drawing area storage unit 304, a color / pattern setting unit 305, and a color / pattern storage unit 3
06, the drawing layer setting unit 307, the drawing layer storage unit 308, and the display processing unit 311.
The data including graphic information read from the file 1 via the data input / output unit 301 is first stored in the data storage unit 302.
Is input to and stored in. In the drawing area setting unit 303, if a drawing area is not stored in the corresponding drawing area storage unit 304, a necessary drawing area is set so that all of the data stored in the data storage unit 302 is drawn. The drawing area that has been set is input and stored in the drawing area storage unit 304. Color / pattern setting unit 305
In the case where no color / pattern classified for each layer is stored in the color / pattern storage unit 306, all colors / patterns in each layer of the color / pattern storage unit 306 are
The color / pattern setting unit 305 sets the white / no-pattern state, and the data indicating the set white / no pattern is stored in the color / pattern storage unit 306. Further, in the drawing layer setting unit 307, when the drawing layer storage unit 308 does not store the layer to be drawn, the drawing layer setting unit 307 causes the drawing layer setting unit 307 to store all the layers of the data stored in the data storage unit 302. Is set to draw, and the set drawing layer is stored in the drawing layer storage unit 308. Furthermore,
When the user specifies the drawing layer, the input device 2 such as a keyboard sets the drawing layer in the drawing layer setting unit 307, and the drawing layer designated and set by the user is the drawing layer storage unit 308. It is stored in.

In the display processing unit 311, the data stored in the data storage unit 302 is located inside the drawing area stored in the drawing area storage unit 304 and the drawing layer storage unit 308. The process of adding the color / pattern stored in the color / pattern storage unit 306 is performed only on the layer designated to be drawn in.
Drawing of layers with colors and patterns according to the processing results,
The data is output to and displayed on the display device 4 in order from the lowest layer overlaid when the LSI is created. A display example of these drawings is shown in FIG. FIG. 4 (a) shows the first layer 11, the second layer 12, the third layer 13, the fourth layer 14 and the fifth layer 15 which are colored and patterned by the above-mentioned treatment, such as diagonal lines, polka dots and meshes. The drawing including the drawing is shown in a perspective view for easy understanding, and when the LSI is created, the first layer 11, the second layer 12, the third layer 1 are arranged from the bottom layer.
The third layer 4, the fourth layer 14, and the fifth layer 15 are stacked in this order. And, in FIG. 4B, in the conventional example, these first layer 11, second layer 12, third layer 13, and fourth layer 1 are shown.
The drawing state when the layers including the fourth and fifth layers 15 are overlapped is shown. Further, FIG. 4B is a diagram showing a display example in the case of two layers in the conventional example. In this way, only the portions such as the diagonal lines, polka dots, and meshes are colored, and the other portions are displayed transparently so that the figures drawn in the previous order can be seen.

[0006]

DISCLOSURE OF THE INVENTION The conventional LSI described above
In the layout data drawing device, for example, when it is desired to confirm the degree of data overlap between the two layers that are overlapped with each other, if the figures of the other layers drawn after these two layers are overwritten, all of them are overwritten. There is a drawback that it becomes difficult to confirm the part of.

An object of the present invention is to confirm the overlapping state of data between arbitrary two layers even when drawing data for two or more layers, and to determine the relative positional relationship with figures on other layers and the layer. It is also possible to realize an LSI layout data drawing apparatus that can confirm the positioning in the whole and also can perform redrawing processing for changing the drawing order at high speed.

[0008]

An LSI layout data drawing apparatus according to a first aspect of the present invention includes a layout data file for storing graphic information on an LSI layout classified into a plurality of layers according to a predetermined identification section, and a program. A data processing device that inputs graphic information stored in the layout file by control and performs drawing display processing corresponding to the LSI layout, an input device for the data processing device, and an output from the data processing device. In the LSI layout data drawing device having a display device for displaying a drawing, the data processing device includes a data input / output unit having a data input / output function with the layout data file, and the data input / output unit. ,
A data storage unit for storing and holding data including graphic information read from the layout data file, and a drawing region setting for setting a required drawing region so that all of the data stored in the data storage unit is drawn. Department,
A drawing area storage unit that stores and holds the drawing area set by the drawing area setting unit; and a color / pattern storage unit that stores and holds the drawing colors and patterns corresponding to the LSI layout classified for each layer. If the color / pattern classified for each layer is not stored and stored in the color / pattern storage unit, a color / pattern without white / pattern is set, and the set color / pattern is stored in the color / pattern memory. When a color / pattern setting unit to be input and stored in a unit, a drawing layer storage unit that stores and holds a drawing layer corresponding to an LSI layout, and a layer to be drawn are not stored in the drawing layer storage unit, the data The drawing layer corresponding to all layers of the data stored in the storage unit is set, and the drawing layer specified externally via the input device is also set. Enter the drawing layer storage section A drawing layer setting unit stored in the drawing storage unit and a data stored in the data storage unit, and included in the drawing area stored in the drawing area storage unit, and the drawing layer storage unit The process of adding the color / pattern stored in the color / pattern storage unit is performed only for the layer specified in the drawing, and the drawing of the layer to which the color / pattern is added according to the processing result is displayed. And a display processing unit that sequentially outputs to the device.

The LSI layout data drawing apparatus of the second invention is a layout data file for storing graphic information on an LSI layout by classifying it into a plurality of layers according to a predetermined identification section, and the layout by a program control. Displaying the drawing output from the data processing device, the data processing device for inputting the graphic information stored in the file and performing the drawing display process corresponding to the LSI layout, the input device for the data processing device In the LSI layout data drawing device having a display device, the data processing device has a data input / output unit having a data input / output function with the layout data file, and the file via the data input / output unit. Set the required drawing area so that all of the read data can be drawn. A drawing area setting unit, a drawing area storage unit for storing and holding the drawing area set by the drawing area setting unit, and a drawing color / pattern corresponding to the LSI layout for each layer and stored and held. When the color / pattern storage unit and the color / pattern classified for each layer are not stored and held in the color / pattern storage unit, a white / non-pattern color / pattern is set and the set color / pattern is set. The pattern
A color / pattern setting unit that is input and stored in the pattern storage unit and an LS
A drawing layer storage unit that stores and holds a drawing layer corresponding to the I layout, and all the data read from the file via the data input / output unit when the drawing layer storage unit does not store the drawing layer The drawing layer corresponding to the layer is also set, and the drawing layer specified from the outside via the input device is also set, and the drawing layer with the setting is input and stored in the drawing layer storage unit. The drawing layer setting unit and the data read from the file via the data input / output unit are included in the drawing area stored in the drawing area storage unit, and the drawing layer storage unit Drawing is performed only on the layers specified by the drawing, and the process of adding the colors / patterns stored in the color / pattern storage unit is performed, and the drawing of the layer with the colors / patterns added according to the processing result. , And characterized in that it is configured with a display unit for outputting in sequence on the display device.

[0010]

Next, the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing a first embodiment of the present invention. As shown in FIG.
A file 1 such as a magnetic disk storing LSI layout data, an input device 2 including a keyboard, a data input / output unit 301, a data storage unit 302 such as a magnetic disk storing LSI layout data, a drawing area setting unit 303, drawing area storage unit 304, color / pattern setting unit 30
5, a data processing device including a color / pattern storage unit 306, a drawing layer setting unit 307, a drawing layer storage unit 308, a drawing layer order setting unit 309, a drawing layer order storage unit 310, and a display processing unit 311 and operated by program control. 3 and display device 4
And is provided.

In FIG. 1, the LSI layout data stored in the file 1 is the same as in the conventional example.
It is formed as collective data including graphic information such as the position of the graphic on the LSI layout, the size of the graphic, and the shape of the graphic. The data including these graphic information is classified and stored in a plurality of layers in the file 1, and when the LSI is created, the storage position including the layer arrangement position of each data is the number and the name of the data. Are stored so that they are more clearly identified by. The LSI layout data including the graphic information is read from the file 1 via the data input / output unit 301 and stored in the data storage unit 302. In the drawing area setting unit 303, when the drawing area is not stored in the corresponding drawing area storage unit 304, the range in which all the data stored in the data storage unit 302 is drawn is read,
The range is stored in the drawing area storage unit 304 as a drawing area. Then, after that, when the user newly inputs a drawing area via the input device 2, the drawing area is similarly stored in the drawing area storage unit 304.

In the color / pattern setting unit 305, when the color / pattern classified for each layer is not stored in the color / pattern storage unit 306, the color / pattern setting unit 3 concerned.
By 05, the state of white / no pattern is set for all layers stored in the data storage unit 302, and the state indicating the set white / no pattern is set to the color / pattern storage unit 3
It is stored in 06. After that, when the user inputs the color / pattern for each layer via the input device 2, the color / pattern is stored in the color / pattern storage unit 30.
6 are stored. Further, in the drawing layer setting unit 307, when the layer to be drawn is not stored in the drawing layer storage unit 308, the drawing layer setting unit 307
All layers of the data stored in the data storage unit 302 are set to be drawn, and the set drawing layers are stored in the drawing layer storage unit 308. Then, after that, when the user specifies the drawing layer, the input device 2 such as a keyboard sets the drawing layer in the drawing layer setting unit 307, and the drawing layer specified by the user is the drawing layer. It is stored in the storage unit 308.

In the drawing layer order setting unit 309, if the contents indicating the drawing order are not stored in the drawing layer order storage unit 310, the drawing layer order setting unit 309 does not operate as an operation, but is operated by the user via the input device 2. When the drawing order is designated and input, the drawing order is stored in the drawing layer order storage unit 310. Then, in the display processing unit 311, the data stored in the data storage unit 302 is within the drawing area stored in the drawing area storage unit 304, and the drawing layer storage unit 308 specifies the drawing. Color / pattern storage unit 3 for only the existing layers
The processing to add the colors and patterns stored in 06 is performed,
When the drawing layer order storage unit 310 stores the contents indicating the drawing order, the drawing of the layer colored / patterned according to the processing result according to the drawing order is the lowest layer overlaid when the LSI is created. The layers are sequentially output to and displayed on the display device 4. If the drawing layer order storage unit 310 does not store the content indicating the drawing order, the data is output to the display device 4 in the order from the lowest layer according to the order read from the data storage unit 302 and displayed. To be done. Then, after the drawing is once displayed on the display device 4, the drawing process can be repeatedly performed through the drawing start operation by the drawing area setting unit 303.

FIG. 4 (a) shows the first layer 1 which has been colored and patterned by the above-mentioned processing, as in the case of the above-mentioned conventional example.
FIG. 3 is a perspective view showing, for easy understanding, a drawing state including diagonal lines, polka dots, meshes and the like in the first, second layer 12, third layer 13, fourth layer 14 and fifth layer 15. Also in this embodiment, when the LSI is created, the first layer 11, the second layer 12, the third layer 13, the fourth layer 14, and the fifth layer 15 are stacked in this order from the bottom layer. In the embodiment, the drawing display order of each layer in the perspective view shown in FIG. 4A can be arbitrarily set by a preset drawing order or a user's designation.
In FIG. 4D, in the present embodiment, these first layer 11, second layer 12, third layer 13, fourth layer 14 and fifth layer 11 are formed.
An example of drawing display when the order of superposing each layer including the layer 15 is changed is shown. In the display example of FIG. 4D, the order of the drawing display of each layer in the perspective view shown in FIG. 4A is the first layer 11, the third layer 13, the fifth layer 1.
5, the second layer 12 and the fourth layer 14 are displayed. As a result, in the present invention, it is possible to accurately confirm the degree of data overlap between any two layers in correspondence with the data including the graphic information over two or more layers, and at the same time with other layers. It is possible to confirm the relative positional relationship between the layers and the position map in the entire layer, and redrawing can be executed at high speed by changing the drawing order.

FIG. 2 is a block diagram showing a second embodiment of the present invention. As shown in FIG. 2, in this embodiment, a file 1 such as a magnetic disk for storing LSI layout data, an input device 2 including a keyboard, a data input / output unit 301 corresponding to the file 1, a drawing area setting. Unit 303, drawing area storage unit 304, color / pattern setting unit 3
05, a color / pattern storage unit 306, a drawing layer setting unit 307, a drawing layer storage unit 308, a drawing layer order setting unit 309, a drawing layer order storage unit 310, and a display processing unit 311 and is operated by program control. 3 and a display device 4. As is clear from comparison with FIG. 1, in the present embodiment, the data storage unit 302 included in the data processing device 3 in the first embodiment is deleted.

The operation contents of each unit included in the data processing device 3 in the present embodiment are basically the same as those in the first embodiment, but the operational difference is that in the present embodiment, Since the storage unit 302 is excluded, all the data input corresponding to each unit included in the data processing device 3 is performed via the data input / output unit 301, and accordingly, the graphic information read from the file 1 is stored. The data included in the data includes the drawing area setting unit 303, the color / pattern setting unit 305, and the drawing layer setting unit 3 via the data input / output unit 301.
07 and the display processing unit 311 are directly input. Further, in the first embodiment, in the drawing area setting unit 303, when the drawing area is not stored in the corresponding drawing area storage unit 304, the data storage unit 302.
A range in which all of the data stored in is drawn is read, and the range is used as a drawing area in the drawing area storage unit 3.
However, in the present embodiment, the drawing area setting unit 303 is used instead of the data storage unit 302.
In the case where no drawing area is stored in the corresponding drawing area storage unit 304, a range in which all the data read from the file 1 is drawn via the data input / output unit 301 is read, and the range is It is stored in the drawing area storage unit 304 as a drawing area.

Further, in the first embodiment, in the color / pattern setting unit 305, in the color / pattern storage unit 306,
When the color / pattern classified for each layer is not stored, the color / pattern setting unit 305 sets the white / no-pattern state for all layers stored in the data storage unit 302. The set state indicating the set white / no pattern is stored in the color / pattern storage unit 306. In the present embodiment, the drawing layer setting unit 307 draws in the drawing layer storage unit 308. If the layer to be attempted is not stored, the drawing layer setting unit 307 is set and set to draw all layers of the data read from the file 1 via the data input / output unit 301. The drawing layer is configured to be stored in the drawing layer storage unit 308. This means that the display processing unit 3
The same applies to the operation of No. 11, and in the first embodiment, in the display processing unit 311, the data storage unit 30.
From the data stored in 2, the drawing area storage unit 3
The color / pattern stored in the color / pattern storage unit 306 is targeted only at the layer that is inside the drawing area stored in 04 and is designated to be drawn in the drawing layer storage unit 308.
When the patterning process is performed and the content indicating the drawing order is stored in the drawing layer order storage unit 310, the drawing of the layer to which the color / pattern is applied according to the processing result is drawn in accordance with the drawing order. It is output and displayed on the display device 4 in order from the bottom layer that is overlaid when the LSI is created.
In the present embodiment, instead of the data storage unit 302, the data is read from the file 1 via the data input / output unit 301 and is inside the drawing area stored in the drawing area storage unit 304, and Drawing layer storage unit 3
Targeting only the layers specified for drawing in 08,
When the process of applying the color / pattern stored in the color / pattern storage unit 306 is performed and the content indicating the drawing order is stored in the drawing layer order storage unit 310, the processing result is obtained according to the drawing order. Drawings of layers with colors and patterns are output to the display device 4 and displayed in order from the lowest layer overlaid when the LSI is created. Further, when the drawing layer order storage unit 310 does not store the contents indicating the drawing order, the data is read from the file 1 via the data input / output unit 301 and displayed in order from the bottom layer according to the order. It is output to the device 4 and displayed.

Regarding the drawing display example according to the present embodiment,
Similar to the case of the first embodiment described above, it is possible to accurately confirm the degree of data overlap between any two layers, and the relative positional relationship with other layers and the entire layer. It is also possible to check the location map.

[0020]

As described above, according to the present invention, the drawing layer order setting means capable of externally setting the drawing order to be displayed on the display device via the display control unit,
By providing the drawing layer order storage unit that stores the drawing order set by the drawing layer order setting unit, the drawing display order of each layer is arbitrarily set according to the preset drawing order or the user's designation. This makes it possible to accurately check the degree of data overlap between any two layers in correspondence with data including graphic information over two or more layers, and There is an effect that it is possible to confirm the relative positional relationship between the layers and the position map in the entire layer.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a first embodiment of the present invention.

FIG. 2 is a block diagram showing a second embodiment of the present invention.

FIG. 3 is a block diagram showing a conventional example.

FIG. 4 is a diagram showing an example of drawing display.

[Explanation of symbols]

 1 File 2 Input Device 3 Data Processing Device 4 Display Device 11 First Area 12 Second Area 13 Third Area 14 Fourth Area 15 Fifth Area 301 Data Input / Output Section 302 Data Storage Section 303 Drawing Area Setting Section 304 Drawing Area Storage Part 305 Color / pattern setting part 306 Color / pattern storage part 307 Drawing layer setting part 308 Drawing layer storage part 309 Drawing layer order setting part 310 Drawing layer order storage part 311 Display control part

Claims (2)

[Claims] 1. A layout data file for storing graphic information on an LSI layout by classifying it into a plurality of layers according to a predetermined identification classification, and inputting graphic information stored in the layout file by program control. And an LSI layout data drawing apparatus having a data processing device for performing drawing display processing corresponding to the LSI layout, an input device for the data processing device, and a display device for displaying a drawing output from the data processing device. A data input / output unit having a data input / output function with the layout data file; and the data input / output unit stores data including graphic information read from the layout data file. A data storage unit to hold, and a data storage unit stored in the data storage unit Drawing area setting unit that sets a necessary drawing area so that all the data to be drawn is drawn, a drawing area storage unit that stores and holds the drawing area set by the drawing area setting unit, and a drawing corresponding to the LSI layout A color / pattern storage unit that stores and stores the colors / patterns for each layer classified and stored, and a white color when the colors / patterns classified for each layer are not stored and stored in the color / pattern storage unit.・ Color without pattern ・
A color / pattern setting unit that sets a pattern and inputs and stores the set color / pattern in the color / pattern storage unit; a drawing layer storage unit that stores and holds a drawing layer corresponding to an LSI layout; When the layer to be drawn is not stored in the layer storage unit, the drawing layer corresponding to all layers of the data stored in the data storage unit is set and the layer is specified from the outside through the input device. The drawing layer setting unit that also sets the drawing layer according to the setting, and inputs and stores the drawing layer according to the setting in the drawing layer storage unit; and the drawing layer setting unit that stores the drawing layer from the data stored in the data storage unit. Colors / patterns contained in the drawing area stored in the area storage unit and stored in the color / pattern storage unit only for layers specified to be drawn in the drawing layer storage unit. Process , The processing result by the drawing of layers tinted-pattern, the display device LSI layout data drawing apparatus characterized by being configured to include a display processing section which sequentially outputs, against. 2. A layout data file for storing graphic information on an LSI layout by classifying it into a plurality of layers according to a predetermined identification section, and inputting graphic information stored in the layout file under program control. And an LSI layout data drawing apparatus having a data processing device for performing drawing display processing corresponding to the LSI layout, an input device for the data processing device, and a display device for displaying a drawing output from the data processing device. A data input / output unit having a data input / output function with the layout data file, and all the data read from the file via the data input / output unit are drawn. The drawing area setting unit that sets the required drawing area and the drawing area setting unit A drawing area storage unit that stores and holds a specified drawing area, a color / pattern storage unit that stores and holds the drawing color / pattern corresponding to the LSI layout for each layer, and the color / pattern storage unit If the color / pattern classified for each layer is not stored and stored in the
A color / pattern setting unit that sets a pattern and inputs and stores the set color / pattern in the color / pattern storage unit; a drawing layer storage unit that stores and holds a drawing layer corresponding to an LSI layout; When the layer to be drawn is not stored in the layer storage unit, the drawing layer corresponding to all the layers of the data read from the file is set via the data input / output unit, and the input device is externally set. The drawing layer specified via the drawing layer setting unit is also input, and the drawing layer according to the setting is input to and stored in the drawing layer storage unit, and is read from the file via the data input / output unit. Among the data to be drawn, only the layers included in the drawing area stored in the drawing area storage unit and specified to be drawn in the drawing layer storage unit,
A display processing unit that performs a process of adding a color / pattern stored in the color / pattern storage unit, and sequentially outputs to the display device a drawing of a layer to which a color / pattern is added according to the processing result; An LSI layout data drawing device comprising: