JP2932990B2 - LSI layout data drawing device - Google Patents

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 apparatus, and more particularly to an LSI layout data drawing apparatus used for visually confirming the degree of overlap of arbitrary layers in LSI layout data on a screen.

[0002]

2. Description of the Related Art As shown in the block diagram of FIG. 3, a conventional LSI layout data drawing apparatus of this type includes a file 1 such as a magnetic disk for storing LSI layout data and an input device including a keyboard and the like. 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 includes a data processing device 3 that operates under program control and a display device 4.

In FIG. 3, LSI layout data stored in a file 1 is formed as set data including graphic information such as a position of a graphic on an LSI layout, a size of the graphic, and a shape of the graphic. .
The data including the graphic information is stored in the file 1 by being classified into a plurality of layers. When the LSI is manufactured by the LSI manufacturing apparatus, different types of graphic information are used for each layer unit. 2. Description of the Related Art LSIs are manufactured through repetitive processes such as metal spraying and partial melting of the sprayed metal. In the above-described manufacturing process, at the time of LSI fabrication, the layers to be processed in each process are appropriately selected and the order of the layers to be processed is determined so that the corresponding layers are processed. Is
An identification number, a name, and the like are assigned to each data, and the storage positions including the layer arrangement position of each data are stored so as to be clearly separated by the identification number, the name, and the like of the data. The conventional example will be described below with reference to FIGS.

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, 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 in the data processing device 3,
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 entered and stored. In the drawing area setting unit 303, when the drawing area is not stored in the corresponding drawing area storage unit 304, the required drawing area is set so that all of the data stored in the data storage unit 302 is drawn. The set drawing area is input to the drawing area storage unit 304 and stored. Color / pattern setting unit 305
In the case where the color / pattern classified for each layer is not stored in the color / pattern storage unit 306, all the colors / patterns in each layer of the color / pattern storage unit 306 are
The color / pattern setting unit 305 sets the state to white / no pattern, and data indicating the set white / no pattern is stored in the color / pattern storage unit 306. When the drawing layer setting unit 307 does not store a layer to be drawn in the drawing layer storage unit 308, the drawing layer setting unit 307 causes all the layers of the data stored in the data storage unit 302 to be stored. Is set to be drawn, and the set drawing layer is stored in the drawing layer storage unit 308. Furthermore,
When the user specifies a 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 and set by the user is stored in the drawing layer storage unit 308. Is stored within.

[0005] In the display processing section 311, the data stored in the data storage section 302, within the drawing area stored in the drawing area storage section 304 and the drawing layer storage section 308. The process of applying the color / pattern stored in the color / pattern storage unit 306 is performed only on the layer designated to be drawn in.
The drawing of the layer colored and patterned by the processing result is
The information is output to and displayed on the display device 4 in order from the lowest layer superimposed when the LSI is created. Display examples of these drawings are shown in FIG. FIG. 4A shows oblique lines, polka dots, meshes, and the like in the first layer 11, the second layer 12, the third layer 13, the fourth layer 14, and the fifth layer 15, which have been colored and patterned by the above processing. The state of drawing is shown in a perspective view for easy understanding, and the first layer 11, the second layer 12, the third layer 1
It is assumed that the third, fourth and fifth layers 14 and 15 are stacked in this order. FIG. 4B shows the first layer 11, the second layer 12, the third layer 13, and the fourth layer 1 in the conventional example.
The drawing state when the layers including the fourth and fifth layers 15 are overlapped is shown. FIG. 4B is a diagram showing a display example in the case of two layers in the conventional example. As described above, only the portions such as the diagonal lines, the polka dots, and the meshes are colored, and the other portions are transparently displayed so that the figures drawn in the previous order can be seen.

[0006]

The above-mentioned conventional LSI
In a layout data drawing apparatus, for example, when it is desired to check the degree of data overlap between two superimposed layers, if the graphics of another layer drawn after these two layers are overwritten, all of them are overwritten. There is a drawback in that it is difficult to confirm the above part.

An object of the present invention is to enable the user to confirm the degree of overlapping of data between any two layers even when drawing data of two or more layers, and to determine the relative positional relationship with the graphic of another layer and the layer. An object of the present invention is to realize an LSI layout data drawing apparatus capable of confirming the positioning of the whole and also performing high-speed redrawing processing for changing the drawing order.

[0008]

According to a first aspect of the present invention, there is provided an LSI layout data drawing apparatus, comprising: a layout data file for classifying graphic information on an LSI layout into a plurality of layers according to a predetermined identification section; A data processing device for inputting graphic information stored in the layout file by control and performing a drawing display process corresponding to the LSI layout; an input device for the data processing device; and an output device from the data processing device. An LSI layout data drawing device having a display device for displaying a drawing to be drawn, wherein the data processing device comprises: a data input / output unit having a data input / output function with the layout data file; ,
A data storage unit for storing and holding data including graphic information read from the layout data file, and a drawing area setting for setting a required drawing area so that all of the data stored in the data storage unit are drawn Department and
A drawing area storage unit that stores and holds a drawing area set by the drawing area setting unit; a color / pattern storage unit that stores and holds a drawing color / pattern corresponding to an LSI layout for each layer. When the color / pattern classified for each layer is not stored and held 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 storage. A color / pattern setting unit to be input to and stored in a unit; a drawing layer storage unit to store and hold a drawing layer corresponding to an LSI layout; In addition to setting the drawing layers corresponding to all the layers of the data stored in the storage unit, the setting of the drawing layers specified from the outside via the input device is also performed, and the drawing layers based on the settings are set. Enter the drawing layer storage unit A drawing layer setting unit for storing in said
Drawing layer order setting unit that sets the drawing order of each of the drawing layers
And the drawing order set by the drawing layer order setting unit.
The drawing layer order storage unit to be stored and the data stored in the data storage unit are included in the drawing region stored in the drawing region storage unit, and are included in the drawing layer storage unit. A process of applying a color / pattern stored in the color / pattern storage unit is performed on only the layer designated to be rendered, and the rendering of the layer provided with the color / pattern based on the processing result is performed by the rendering layer. The drawing order is stored in the order storage unit.
Is stored in accordance with this drawing order.
If the drawing order is not stored, input the graphic information
And a display processing unit for sequentially outputting to the display device according to the order.

Further, the LSI layout data drawing apparatus according to a second aspect of the present invention provides a layout data file for classifying graphic information on an LSI layout into a plurality of layers according to a predetermined identification section and storing the layout information file, and controlling the layout by program control. A data processing device that inputs drawing information stored in a file and performs a drawing display process corresponding to the LSI layout; an input device for the data processing device; and a drawing output from the data processing device. An LSI layout data drawing device having a data input / output unit having a data input / output function with respect to the layout data file, and the file input / output unit via the data input / output unit. The required drawing area is set so that all the data read from A drawing area setting unit, a drawing area storage unit that stores and holds the drawing area set by the drawing area setting unit, and a drawing color / pattern corresponding to an LSI layout that is classified and stored for each layer. When the color / pattern storage unit and the color / pattern storage unit do not store and hold the color / pattern classified for each layer, the color / pattern without white / pattern is set, and the set color / pattern is set. The pattern
A color / pattern setting unit to be inputted and stored in the pattern storage unit;
A drawing layer storage unit for storing and holding a drawing layer corresponding to the I layout; and all data read from the file via the data input / output unit when a layer to be drawn is not stored in the drawing layer storage unit. The drawing layer corresponding to the layer is set, and the setting of the drawing layer specified from the outside via the input device is also performed, and the drawing layer according to the setting is input to the drawing layer storage unit and stored. And a drawing layer for setting a drawing order of each of the drawing layers
An order setting unit; and the drawing set by the drawing layer order setting unit.
A drawing layer order storage unit that stores an image order, and among data read from the file via the data input / output unit, included in a drawing area stored in the drawing area storage unit, In addition, for only the layer designated to be drawn in the drawing layer storage unit, a process of giving a color / pattern stored in the color / pattern storage unit is performed, and a layer provided with a color / pattern based on the processing result. Drawing before
When the drawing order is stored in the drawing layer order storage unit,
In this case, the drawing order is stored according to the drawing order.
If not, follow the input order of the graphic information.
And a display processing unit for sequentially outputting to 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 for storing LSI layout data, an input device 2 including a keyboard, etc., 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, 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 under 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 aggregate 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 the graphic information is stored in the file 1 by being classified into a plurality of layers. When the LSI is created, the storage position including the layer arrangement position of each data is the number and name of the data. Is stored so as to be more clearly identified. 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 where 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. After that, when a new drawing area is input by the user 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, if the color / pattern classified for each layer is not stored in the color / pattern storage unit 306, the color / pattern setting unit 3
05, all the layers stored in the data storage unit 302 are set to the white / patternless state, and the state indicating the set white / no pattern is set to the color / pattern storage unit 3.
06. After that, when the user inputs a color / pattern for each layer via the input device 2, the color / pattern is stored in the color / pattern storage unit 30.
6 is 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,
All the layers of the data stored in the data storage unit 302 are set to be drawn, and the set drawing layer is stored in the drawing layer storage unit 308. After that, when the drawing layer is designated by the user, the drawing layer is set in the drawing layer setting unit 307 by the input device 2 such as a keyboard, and the drawing layer designated by the user is set to the drawing layer. It is stored in the storage unit 308.

When 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. 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, from among the data stored in the data storage unit 302, the drawing processing is performed in the drawing area stored in the drawing area storage unit 304 and the drawing is specified in the drawing layer storage unit 308. Color / pattern storage unit 3
The process of adding the color / pattern stored in 06 is performed.
In the case where the contents indicating the drawing order are stored in the drawing layer order storage unit 310, the drawing of the layer colored and patterned by the processing result according to the drawing order is performed at the bottom where LSI is created. Are sequentially output to the display device 4 and displayed. If the contents indicating the drawing order are not stored in the drawing layer order storage unit 310, the contents are output to the display device 4 in order from the lowest layer according to the order read from the data storage unit 302 and displayed. Is done. 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-described processing, as in the case of the above-mentioned conventional example.
FIG. 3 is a perspective view showing a state of drawing including diagonal lines, polka dots, meshes, and the like on the first, second, third, fourth, and fifth layers 13, 13, 14, and 15 for easy understanding. Also in the present embodiment, when the LSI is manufactured, the first layer 11, the second layer 12, the third layer 13, the fourth layer 14, and the fifth layer 15 are sequentially stacked 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 according to a preset drawing order or designation by a user.
FIG. 4D shows the first layer 11, the second layer 12, the third layer 13, the fourth layer 14, and the fifth layer 11 in the present embodiment.
The drawing display example when the order of superposition of the layers 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 changed to the first layer 11, the third layer 13, and the fifth layer 1.
5, the second layer 12 and the fourth layer 14 are displayed. Accordingly, in the present invention, it is possible to accurately confirm the degree of data overlap between any two layers in accordance with data including graphic information over two or more layers, and to perform data checking with other layers. It is also possible to confirm the relative positional relationship between the two and the position drawing in the entire layer, etc., and the redrawing by changing the drawing order is also executed at high speed.

FIG. 2 is a block diagram showing a second embodiment of the present invention. As shown in FIG. 2, in the present embodiment, a file 1 such as a magnetic disk for storing LSI layout data, an input device 2 including a keyboard and the like, 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 sequence setting unit 309, a drawing layer sequence storage unit 310, and a display processing unit 311. 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 is deleted in the first embodiment.

The operation of each unit included in the data processing device 3 in this embodiment is basically the same as that in the first embodiment, but the operation is different in this embodiment. Since the storage unit 302 is excluded, all data input corresponding to each unit included in the data processing device 3 is performed via the data input / output unit 301. The data including the data is input to 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. In the first embodiment, when the drawing area setting unit 303 does not store a drawing area in the corresponding drawing area storage unit 304, the data storage unit 302
Is read, and the range is read as a drawing area.
However, in the present embodiment, instead of the data storage unit 302, the drawing area setting unit 303
In the case where the drawing area is not stored in the corresponding drawing area storage unit 304, the range in which all of the data read from the file 1 is drawn via the data input / output unit 301 is read, and the range is read. It is stored in the drawing area storage unit 304 as a drawing area.

Further, in the first embodiment, the color / pattern setting unit 305 stores
If the color / pattern classified for each layer is not stored, the color / pattern setting unit 305 sets a white / no pattern state for all the layers stored in the data storage unit 302. The state that is set and indicates 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 the image in the drawing layer storage unit 308. If a layer to be stored is not stored, the drawing layer setting unit 307 sets and draws all layers of 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 the data storage unit 30 in the display processing unit 311 in the first embodiment.
2 from the data stored in the drawing area storage unit 3
The color / pattern stored in the color / pattern storage unit 306 is for only the layer that is inside the drawing area stored in the pattern storage unit 04 and that is specified to be drawn in the drawing layer storage unit 308.
When a process of forming a pattern is performed and the content indicating the drawing order is stored in the drawing layer order storage unit 310, drawing of a layer colored and patterned by the processing result is performed according to the drawing order. It is output to and displayed on the display device 4 in order from the lowest layer superimposed when the LSI is created,
In the present embodiment, instead of the data storage unit 302, the data read from the file 1 via the data input / output unit 301 is located inside the drawing area stored in the drawing area storage unit 304, and Drawing layer storage unit 3
08, only the layers specified to be drawn
When a process of adding a 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 stored in accordance with the drawing order. Are drawn and displayed on the display device 4 in order from the lowest layer to be superimposed when the LSI is created. Further, when the contents indicating the drawing order are not stored in the drawing layer order storage unit 310, the contents are displayed in order from the lowest layer according to the order read from the file 1 via the data input / output unit 301. The data is output to the device 4 and displayed.

With respect to the drawing display example according to the present embodiment,
As in the case of the first embodiment described above, it is possible to accurately confirm the degree of data overlap between any two layers, and also to determine the relative positional relationship with other layers and the entire layer. it is possible to carry out even the confirmation of only with position, and the like.

[0020]

As described above, the present invention provides a drawing layer sequence setting unit which can arbitrarily set the drawing order displayed on a display device via a display control unit from the outside, and the drawing layer order setting unit. By providing a drawing layer order storage unit that stores the drawing order set by the order setting unit , the drawing display order of each layer can be arbitrarily set according to a preset drawing order or user designation. Accordingly, it is possible to accurately confirm the degree of data overlap between any two layers in correspondence with data including graphic information over two or more layers,
There is an effect that it is possible to carry out even together confirm the position <br/> Installing location like in the whole a relative positional relation and a layer between the other layers.

[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 a display example of drawing.

[Explanation of symbols]

 REFERENCE SIGNS LIST 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 unit 302 data storage unit 303 drawing area setting unit 304 drawing area storage Unit 305 color / pattern setting unit 306 color / pattern storage unit 307 drawing layer setting unit 308 drawing layer storage unit 309 drawing layer sequence setting unit 310 drawing layer sequence storage unit 311 display control unit

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G06F 17/50 H01L 21/82

Claims (2)

(57) [Claims] 1. A layout data file for storing graphic information on an LSI layout in a plurality of layers according to a predetermined identification section and storing the graphic information stored in the layout file under program control. An LSI layout data drawing apparatus comprising: a data processing device that performs a drawing display process corresponding to the LSI layout; an input device for the data processing device; and a display device that displays 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 by the data input / output unit. A data storage unit to be held; Drawing area setting unit that sets a required drawing area so that all of 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 an LSI layout. A color / pattern storage unit for classifying and storing colors / patterns for each layer, and a white color when the color / pattern classified for each layer is not stored / held in the color / pattern storage unit.・ Color without pattern ・
A color / pattern setting unit for setting a pattern and inputting and storing the set color / pattern in the color / pattern storage unit; a drawing layer storage unit for storing and holding a drawing layer corresponding to an LSI layout; When the layer to be drawn is not stored in the layer storage unit, the drawing layers corresponding to all the layers of the data stored in the data storage unit are set, and the setting is performed via the input device from outside. A drawing layer setting unit for inputting and storing a drawing layer according to the setting in the drawing layer storage unit, and a drawing layer order setting for setting a drawing order of each of the drawing layers.
And the drawing order set by the drawing layer order setting unit.
From the data stored in the drawing layer order storage unit, and from the data stored in the data storage unit, which are included in the drawing area stored in the drawing area storage unit, and A process for applying a color / pattern stored in the color / pattern storage unit is performed for only the designated layer, and drawing of the layer provided with the color / pattern based on the processing result is performed on the drawing layer.
If the drawing order is stored in the order storage unit,
The drawing order is not stored according to the drawing order.
A display processing unit for sequentially outputting the graphics information to the display device in accordance with the input order of the graphic information . 2. A layout data file for storing graphic information on an LSI layout by classifying the graphic information into a plurality of layers according to a predetermined identification section, and graphic information stored in the layout file under program control. An LSI layout data drawing apparatus comprising: a data processing device that performs a drawing display process corresponding to the LSI layout; an input device for the data processing device; and a display device that displays a drawing output from the data processing device. A data input / output unit having a data input / output function between the data processing apparatus and the layout data file; and all data read from the file via the data input / output unit are drawn. A drawing area setting unit for setting a required drawing area; A drawing area storage unit for storing and holding a defined drawing area; a color / pattern storage unit for storing and holding a drawing color / pattern corresponding to an LSI layout for each layer; If the color / pattern classified for each layer is not stored and stored,
A color / pattern setting unit for setting a pattern and inputting and storing the set color / pattern in the color / pattern storage unit; a drawing layer storage unit for storing and holding a drawing layer corresponding to an LSI layout; When a layer to be drawn is not stored in the layer storage unit, the drawing layer corresponding to all layers of data read from the file is set via the data input / output unit, and the input device is externally set to the input device. A drawing layer setting unit that also performs setting of a drawing layer specified through the setting unit, inputs a drawing layer according to the setting into the drawing layer storage unit, and stores the drawing layer, and sets a drawing order of each of the drawing layers. Layer order setting
And the drawing order set by the drawing layer order setting unit.
A drawing layer order storage unit, from among data read from the file via the data input / output unit, included in a drawing area stored in the drawing area storage unit, and Only for the layer specified to be drawn in the storage unit,
A process of giving a color / pattern stored in the color / pattern storage unit is performed, and drawing of a layer provided with a color / pattern based on the processing result is stored in the drawing layer order storage unit.
If remembered, follow the drawing order
If the order is not stored, enter the figure information
And a display processing unit for sequentially outputting the data to the display device in accordance with the following .