JPH05283527A - Output unit for lsi design data sheet - Google Patents

Abstract

PURPOSE:To provide an output unit for LSI design data sheet through which a user is readily provided with necessary information of individual components being employed in design of LSI. CONSTITUTION:Data of individual components being employed in design of LSI is prepared, in the form of database, in a memory means 10. An element extracting means 20 extracts element data of desired component from the database based on an instruction delivered from an input unit 50. A sheet information generating means 60 edits the element data and arranges the editted data in a predetermined format based on an instruction delivered from the input means 50 and then outputs the arranged data as sheet information. A sheet output means 70 then outputs a data sheet based on the sheet information.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for outputting a data sheet for LSI design, and more particularly to a device for outputting a data sheet for each component used in ASIC design.

[0002]

2. Description of the Related Art Generally, an LSI design process is carried out by sequentially passing through a functional design stage, a logic design stage, a circuit design stage and a layout design stage. And 1
In one design stage, design processing is performed using the design part data created in the previous design stage. Normally,
Separate CAD tools are prepared to support the design at each stage, and the design is performed by these CAD tools. Therefore, the LSI design part data is managed separately for each CAD tool.

In recent years, the use of LSI tends to be more and more widespread, and so-called ASIC (application-specific integrated circuit) is used.
The demand for is increasing year by year. In ASIC, it is necessary to design a relatively large-scale circuit in a short time according to the requirements of individual users. Therefore, the semiconductor manufacturer provides the user with a large number of LSI design component data for each CAD tool as a library, and the user combines the required design component data in the provided library to create a desired LSI design. The system to do is adopted.
In other words, the semiconductor manufacturer prepares a large number of LSI design component data as individual components in advance, and the user uses the components necessary for himself to select the desired LS.
I will assemble I.

When a user makes such an ASIC design, information about individual parts is required. Therefore,
Semiconductor manufacturers provide users with various types of information about individual parts in the form of data sheets or a data book in which they are summarized. The user is
With reference to this data sheet, the functions of the individual parts,
The desired ASIC design will be performed by recognizing the characteristics and structure.

[0005]

The number of parts required for ASIC design is very large, and the amount of information in the data book provided to the user is enormous. Therefore, the user has to go through this huge data book to find the information about the parts he needs, and then do the complicated work. Moreover, there is no guarantee that the information that the user needs will always be included in the data book. For example, circuit characteristic values (setup time, hold time, etc.) described in the data book
Is generally a safe value for operating the component. Therefore, if the user needs a more exact characteristic value to perform the ASIC design, such information cannot be obtained from the data book.

Further, the LSI manufacturing process has been technically advanced year by year, and the performance and size of the integrated circuit have been improved. As the performance and the size are reduced, it is necessary to update individual parts for assembling the ASIC. As a semiconductor maker, every time the component data is updated, a new data book must be prepared and distributed to users.

Therefore, an object of the present invention is to provide an output device of an LSI design data sheet for easily providing the user with information required by the user for each component used in the LSI design.

[0008]

[Means for Solving the Problems] (1) The first invention of the present application is, in a device for outputting a data sheet of various parts used in LSI design, storage means for holding part data of each part as a database, The sheet information is created by editing the element data extracted from the desired component data by the element extraction unit for extracting a specific element contained in the component data and the element data extracted by the element extraction unit based on predetermined information. Sheet information creating means, based on the created sheet information, sheet output means for outputting a data sheet, and element specifying information for specifying an element to be extracted to the element extracting means, The element editing information for specifying the editing process to be performed on the sheet information creating means and the format for the sheet information to be created are specified. Formatting information to define
And input means for inputting.

(2) A second invention of the present application is a new data sheet output apparatus according to the above-mentioned first invention, in which elements existing in desired component data or elements input from the outside are combined to obtain a new one. Component synthesizing means for synthesizing various component data and adding it to the database in the storing means, process data storing means for storing the processes of the extraction processing performed by the element extracting means and the synthesizing processing performed by the component synthesizing means, Is further provided.

(3) The third invention of the present application is, in the output device of the data sheet according to the above-mentioned second invention, generates another element by converting the expression of the element existing in the desired part data. Expression conversion means is further provided, and the process of expression conversion processing by this expression conversion means is stored in the process data storage means.

[0011]

[Operation] The output device of the LSI design data sheet according to the present invention has the LSI design component data as a database. When the user inputs information specifying the required data from the input device, the element extracting means extracts only the elements required by the user from this database.
Moreover, the extracted element data is edited by the sheet information creating means, and it is possible to obtain a data sheet containing the data required by the user in accordance with the format setting desired by the user.

[0012]

EXAMPLES §1 Overall Configuration of Device Hereinafter, the present invention will be described based on the illustrated examples. FIG. 1 is a block diagram showing the basic configuration of an output device for an LSI design data sheet according to an embodiment of the present invention. This device is composed of a storage unit 10, an element extraction unit 20, a component synthesis unit 30, an expression conversion unit 40, an input unit 50, a sheet information creation unit 60, and a sheet output unit 70. Specifically, each of these components is realized by a computer, its software, and its peripheral devices. This device includes a device for generating and managing LSI design component data. That is, LS
The I design component data is stored as a database in the design component data area of the storage means 10, and this device generates new LSI design component data based on this database or version the LSI design component data. It has a function to up.

§2 LSI Design Component Data Here, before explaining the operation of this device, a brief description will be given to what kind of data the LSI design component data prepared as a database is. FIG. 2 is a diagram showing each stage of a general LSI design work. First, in the functional design stage 1, design is performed in which an LSI to be designed is expressed by a combination of several functional blocks. In the subsequent logic design stage 2, design is performed in which each functional block is expressed by a combination of some logic elements (AND gate, OR gate, inverter, etc.). Further, in the circuit design stage 3, a design is performed in which each logic element is represented by a circuit diagram in which a transistor element, a resistance element, a capacitance element and the like are combined. Then, in the layout designing stage 4, the mask pattern corresponding to each element in the circuit diagram is designed. Generally, the design work in each of these stages is performed by using a dedicated CAD tool. This each C
The AD tool is provided with component data necessary for each design work. That is, the functional design part data is prepared in the functional design stage 1, the logical design part data is prepared in the logical design stage 2, the circuit design part data is prepared in the circuit design stage 3, and the layout design part data is prepared in the layout design stage 4. Is prepared.

FIG. 3 shows some specific examples of these design part data. The component data A is component data used in the logic design stage 2, and in this example, an element formed by connecting three inverter elements I1, I2, I3 in series constitutes one component. In reality, there are many components including only one inverter, components including other logic elements such as AND gates and OR gates, and components combining these components. Further, even a component formed by combining the same logic elements is a different component if the operating characteristics and size are different. For example, the component data A is functionally formed by connecting three inverter elements in series, but the operating characteristics of this component (for example, the delay from the input signal being applied to the output signal being obtained). Time) and size (occupied area on the semiconductor chip) are also predetermined. Therefore, even a component having the same function of "three inverter elements connected in series" is a component different from the component data A if the delay time and the occupied area are different. As described above, the "part data" in the present invention means functional information (information that the three inverter elements I1, I2, I3 are connected in series in the part data A) regarding the target part, and the characteristic. It means data including information (delay time and other electrical characteristic information) and structural information (information such as size, shape, position of input / output terminal).

The component data B is component data used in the circuit design stage 3, and in this example, two transistors T are used.
An element formed by connecting 1 and T2 in parallel constitutes one part. As components used in the circuit design stage 3, many components including not only such transistors but also resistance elements and capacitance elements are prepared. After all, this part data B is
In addition to the functional information that the two transistors T1 and T2 are connected in parallel, the characteristic information and the structural information of each transistor are included. On the other hand, the component data C is
This is the component data used in the layout design stage 4, and in this example, the mask pattern in which the diffusion layer F1 and the polysilicon layer F2 intersect each other constitutes one component. After all, this component data C also includes the diffusion layer F1 and the polysilicon layer F2.
In addition to the functional information that the mask pattern is obtained by intersecting and, characteristic information (such as electric conductivity in each layer) and structural information (such as area of each layer) are included.

§3 LSI design component data interrelation ASIC requires relatively large-scale circuit design in a short time according to the requirements of individual users. Therefore, semiconductor manufacturers often use a large number of tools for each CAD tool. It is necessary to provide the user with the LSI design component data as a library. That is, it is necessary to prepare an enormous number of component data for all stages 1 to 4 shown in FIG. Moreover, this enormous number of pieces of component data have some relation to each other, and one component data is generally generated by synthesizing an element inherent in another component data and an element given from the outside. Is.

The mutual relation of the component data will be briefly described with reference to FIG. As described above, various information is inherent in one part data, and only certain specific information can be extracted as one element. In LSI design component data, functional elements, characteristic elements,
Extraction of structural elements is possible. For example, consider layout design component data D as shown in FIG. The layout design component data represents a part of the LSI as a set of figures, as shown in the component data C of FIG. In the example shown in FIG. 4, from the layout design component data D, the type of element and the connection information of the element are extracted as the functional element d1, and the characteristic value of the element is extracted as the characteristic element d2. As the physical element d3, the size and shape of each figure, the position and name of the input / output terminal are extracted. In other words, layout design part data D
The information inherent in the information is the functional element d1 and the characteristic element d.
It has been decomposed into three elements, that is, the structural element d3 and the structural element d3.

Considering the process of generating the layout design component data D, in the example of FIG. 4, the component data D is generated by combining the element e and the element b1.
Here, the element b1 is another component, that is, a functional element (specifically, a circuit diagram) obtained by disassembling the circuit design component data B ′, and the element e is a design rule (for example, a circuit diagram) given from the outside. , The spacing between the wiring layers). After all, the layout design component data D is data generated by synthesizing the element b1 obtained by disassembling another component and the element e given from the outside.

The mutual relation of the component data will be described with reference to a concrete example. For example, the part data A shown in FIG.
If circuit design component data corresponding to (logical design component data) is to be generated, one inverter is composed of two transistors, so component data B is eventually obtained.
The component data B '(not shown) that is generated by connecting three stages in series is generated. In this case, the component data B ′ is the functional element a1 inherent in the component data A.
(That is, the information that the inverter elements are three-stage serially connected components) is used to synthesize the component. Further, in order to generate the layout design component data D corresponding to the component data B ′, the functional element b1 included in the component data B ′ (that is, a circuit diagram showing that a pair of parallel transistors are connected in three stages in series). ) And a design rule e given from the outside are combined.

In the end, a large number of LSI design part data are in a complex relationship with each other. Figure 5
It is a simple model showing an example of this mutual relationship. When the component data A is decomposed, the elements a1, a2, a3 are extracted,
When the component data B is decomposed, the elements b1, b2 and b3 are extracted, and when the component data C is decomposed, the elements c1 and c2 are extracted. The component data C is generated by synthesizing the element a3 and the element b3, and the component data D
Is generated by synthesizing the element b2 and the design rule e which is an element given from the outside (this model is slightly different from the example of FIG. 4). From the above description, it can be understood that the component data used in each stage shown in FIG. 2 have a complicated relationship with each other.

§4 LSI design component data generation management machine
Ability Well, here back to FIG. 1 again, the operation of the device according to the present invention. The element extracting unit 20 is a unit having a function of extracting a specific element included in the desired component data from the desired component data. That is, when the layout design component data D in FIG. 4 is given, processing for extracting the functional element d1, the characteristic element d2, and the structural element d3 from this is performed. Means for performing such processing are publicly known. For example, various circuit network extraction software is known as means for extracting the functional element d1,
Various electric parameter extraction software is known as a means for extracting the characteristic element d2, and various graphic operation software is known as a means for extracting the structural element d3. On the other hand, the component composition means 30
Is a unit having a function of synthesizing new component data by synthesizing an element existing in desired component data or an element input from the outside. That is, FIG.
In step 1, a process of synthesizing new component data D is performed by synthesizing the element b1 inherent in the component data B ′ and the element e input from the outside. Means for performing such processing are also known. That is, individual LSI design component data is generally generated by synthesizing some elements, and conventionally, various software has been used to generate such component data. Further, the expression conversion means 40 is a means having a function of generating another element by converting the expression of an element existing in desired component data. For example, when an element called an inverter is represented as logic design component data, it is represented by a so-called inverter symbol mark in which a triangle is circled. However, when it is represented as circuit design component data, a pair of parallel-connected elements is connected. If it is expressed by a transistor and further expressed as layout design part data, it can be expressed as a complicated graphic pattern.
However, each of these components must be a logic element called an inverter that performs the same function. The expression conversion unit 40 is a unit that converts the expressions of substantially the same parts. The model of FIG. 5 shows an example in which the element x1 is obtained by expressing the element a2. Means for performing such expression conversion processing are also known, and various software has been conventionally used.

The feature of this apparatus is that when the element extraction processing is performed by the element extraction means 20, the component synthesis processing is performed by the component synthesis means 30, and the expression conversion processing is performed by the expression conversion means 40, respectively. The point is that the process of each process is stored as process data. That is, in FIG. 1, the storage means 10
A design component data area 11 and a process data area 12 are provided in the interior, and each of the generated component data A,
B, C, ... Are stored in the design part data area 11, and process data P1, P2, P describing the process of each process.
Are stored in the process data area 12. Here, the process data is information indicating a processing process such as what kind of parts or elements were obtained by what kind of processing. For example, in the example shown in FIG. 4, element extraction processing (decomposition processing) is performed on the layout design part data D.
By performing the above, the functional element d1, the characteristic element d2,
When the structural element d3 is obtained, the information specifying the software used for each element extraction process is stored as process data. For example, the information that "the element d1 is obtained as a result of performing the processing of extracting the functional element from the component data D using the circuit network extraction software" is recorded as the process data. In addition, in the embodiment shown in FIG. 4, information indicating the related element for each element is also included in a part of the process data. For example, in the process of extracting the functional element d1, this element d1 is the functional element b of the part data B ′.
The information indicating that the structural element d3 is extracted is recorded as the process data, and the information indicating that the structural element d3 is related to the design rule e is the process data. It is recorded. Information indicating such related elements can be input by an operator when each process is executed, or can be automatically generated by software for executing each process.

The operation of the apparatus of FIG. 1 for the model shown in FIG. 5 is as follows. First, design parts data area 1
It is assumed that the component data A and B are stored in advance in FIG. Here, using the specific software in the element extraction means 20, the component data A is decomposed into elements a1, a
2, a3 is extracted, and a process P2 for decomposing the part data B to extract the elements b1, b2, b3 is executed, and further, by using specific software in the part synthesizing means 30, It is assumed that the process P3 for synthesizing a3 and the element b3 to generate new component data C has been executed. In this case, new component data C is added in the design component data area 11, but at the same time, process data P1, P2, P3 are recorded in the process data area 12. Then, the element extracting means 20 is again executed.
Using a specific software in the above, a process P4 of decomposing the part data C and extracting the elements c1 and c2 is executed,
Further, it is assumed that the process P5 for generating the new component data D by synthesizing the elements b2, c1 and the external element e using the specific software in the component synthesizing means 30 is executed. In this case, new component data D is added to the design component data area 11, and at the same time, process data P4 and P5 are recorded in the process data area 12. Further, when the expression conversion processing for converting the expression of the element a2 to obtain the element x1 is performed using the specific software in the expression conversion means 40, the process P6 is further performed.
Will be additionally recorded.

As described above, when various processes are performed by using each means in the apparatus shown in FIG. 1, the process processes are sequentially recorded as process data in the process data area 12. By the way, in order to create the LSI design data sheet, it is sufficient to have each component data in the design component data area 11, and the process data area 1
The process data in 2 is not directly needed. Therefore, the advantage of recording such process data will be described below.

The progress of semiconductor processes is advancing day by day,
The degree of integration of elements formed on a semiconductor wafer is increasing year by year. Therefore, each component data is appropriately updated and so-called version upgrade is performed.
For example, when a technology that allows designing a shorter interval between wiring layers is developed due to the improvement in insulation, the design rule is updated, and as a result, the layout design component data is upgraded. For example, when the part data C shown in FIG. 3 is upgraded, new part data C in which each figure is made smaller is newly created.
N can be generated. At this time, the component data C and CN are
Comparing the elements extracted from each, the functional elements are the same (for example, if the mask pattern for the inverter element, even if the design rule is updated, the fact that it is an inverter element does not change) However, characteristic elements (for example, operating time) and structural elements (size, shape, input / output terminal position) will change. Therefore, it is necessary to update other component data generated based on the characteristic element and the structural element to generate new component data. When performing such a version upgrade, process data area 1
The process data recorded in 2 is extremely effective. That is, when the content of a certain one part or element is upgraded, it is possible to easily recognize from the process data whether the upgrade affects another part or element. Based on the above, it is possible to easily perform a version upgrade process for another affected part or element.

This will be explained using the model of FIG. Now, consider a case where the content of the component data A is upgraded and new component data AN is generated due to some technical progress. In this case, process data area 1
If the process data P1 in 2 is read, the fact that the component data A was decomposed into the elements a1, a2, and a3 is recorded in the past, and if the process data P3 is read, the element a3 and the element The fact that the component data C has been combined with b3 is recorded. Therefore,
When the element a3 is upgraded, it can be recognized that the component data C also needs to be upgraded. For example, if the component data A has been upgraded to AN and the element a3 has been upgraded to the element a3n, it is necessary to synthesize the element a3n and the element b3 to generate new component data CN. In other words, it is necessary to upgrade the component data C to CN by upgrading the component data A to AN. In the device according to the present invention, this version upgrade process can be easily performed. This is because in the process data P3, the past processing process such as what software was used for the element a3 and the element b3 and what kind of composition processing was performed to generate the component data C is recorded as it is. Therefore, if the same processing process is executed by using the element a3n instead of the element a3, the upgraded part data CN is automatically obtained.

Thus, when the component data C is upgraded to CN, it is possible to easily recognize whether or not there is a change in the content of the element c1 obtained by subjecting the component data C to the process P4. For example, when the element c1 is upgraded to the element c1n, it is easy to upgrade the component data D to DN by executing the process P5 for the element c1n, the element b2, and the design rule e. It can be done.

In short, in the process data area 12,
By keeping a record of each process that is executed, it is possible to automatically recognize which other parts or elements will be affected when a certain part or element is upgraded. By performing the same process as the past process process again, it is possible to automatically upgrade the version of the affected part.

§5 Data Sheet Output Function The operation of the LSI design component data generation management function in the apparatus shown in FIG. 1 has been described above. By using this function, it becomes easy to always hold the latest component data as a database in the designed component data area 11. The feature of the present invention resides in that the sheet information creating means 60 and the sheet output means 70 are further connected to the portion which performs the generation management function of the LSI design component data, and the data sheet output device is configured. .. The operation for outputting this data sheet will be described below.

Now, consider a case where a user designs a specific ASIC. In this case, the user may want to obtain various kinds of information about the components used in the design.
Conventionally, the work of searching for necessary information from a data book distributed by a semiconductor manufacturer was performed, but according to the device of the present invention, a data sheet carrying the necessary information is carried out by the following operation. You will be able to get it easily. First, the user gives element designation information from the input device 50 to the element extraction means 20.
This is information for identifying which element of which part is needed. For example, for the layout design component data D shown in FIG. 4, if information about the structural element d3 such as the size and shape, or the position and name of the input / output terminal is required, “structural element d3 of component data D is required. You just have to enter the instruction "Yes". Upon receiving this instruction, the element extracting means 20 performs a process of extracting the structural element d3 from the component data D in the design component data area 11. Here, for example, it is assumed that the mask pattern data as shown in FIG. 6 is extracted as the structural element data d3.

The element data d3 thus extracted is sent to the sheet information creating means 60, where data editing work is performed. The editing work performed here is roughly divided into 2
The work is as follows. The first work is an editing work for the extracted element data itself. This is a work of selecting and extracting only the data that the user needs from the extracted element data. For example, when only the positions and names of the input / output terminals are required for the mask pattern data as shown in FIG.
It is sufficient to give the sheet information creating means 60, through 0, as the element edit information, information for instructing that fact. The sheet information creating means 60 selects only the data required by the user from the extracted element data based on the element editing information. Specifically, from the mask pattern data as shown in FIG. 6, only the data related to the positions and names of the input / output terminals are extracted to obtain the data as shown in FIG. Such editing work may be performed by performing a graphic operation for extracting only information on a predetermined layer from the mask pattern data. The second work performed by the sheet information creating means 60 is an editing work for adjusting the output of element data into a predetermined format. The input device 50 is used by the user to input format setting information indicating which data is output at which position and in what format (for example, a unit, a graph format, or a table format). It may be given to the sheet information creating means 60 via.

When the editing work in the sheet information creating means 60 is completed in this way, the edited data is given to the sheet output means 70 as sheet information. The sheet output unit 70 is specifically configured by peripheral devices such as a display, a printer, a magnetic disk device, and a magnetic tape device. If the output is performed on the display, the user can check the data sheet on the screen of the display, and if the output is performed on the printer, the data sheet printed on the paper can be obtained. Also, if you output to a magnetic disk device or magnetic tape device,
Data sheets can be stored in the form of digital data.

FIG. 8 shows an example of a data sheet obtained as a result of output by the printer. In the area of this data sheet, the mask pattern data shown in FIG. 7 (only the portions relating to the positions and names of input / output terminals) are output. Further, a symbol indicating the type of element of this component is output to the area, and a truth table of this element is output to the area. The symbol and the truth table are obtained by extracting the functional element d1 from the component data D. Further, characteristic value information (relationship between the delay time T and the additional capacitance C) of this element is output to the region and. This characteristic value information is the characteristic element d from the component data D.
Obtained by extracting 2. Note that this characteristic value information is output in the form of a graph in the area and in the form of a table in the area.
It may be given to the sheet information creating means 60 as format setting information.

As described above, by using this apparatus, it is possible to output arbitrary information stored in the database prepared in the design part data area 11 as a data sheet in an arbitrary format. Also, the process data area 1
By using the process data in 2, it is possible to search for another part data related to one part data and output a data sheet for the searched part data. For example, as shown in FIG. 5, the element a3 is obtained by executing the process P1 for the component data A, and the process P2 is obtained for the component data B.
Is executed to obtain the element b3, and further, the element a
By using the process data in which the component data C can be combined by executing the process P3 using 3 and the element b3, the component data C can be searched as the data related to the component data A. Such a search function is convenient when performing a work of selecting a component to be actually used from a large number of components. For example, trying to use a part X, a characteristic element of the part X (for example,
As a result of outputting (delay time) as a data sheet, it is determined that it is necessary to use another component having a shorter delay time. In such a case, other parts Y and Z generated by using the functional element of the part X may be searched using the process data in the process data area 12. Since the parts X, Y, and Z are parts generated based on the same functional element, the logical functions are equivalent. Therefore, if the characteristic elements (delay time) of the retrieved parts Y and Z are output as a data sheet, the most suitable part can be easily selected.

The present invention has been described above with reference to a simple embodiment, but the present invention is not limited to this embodiment and can be implemented in various other modes. For example,
Each unit shown in FIG. 1 may be configured by a single computer or a plurality of computers. Alternatively, a part may be installed on the semiconductor maker side, another part may be set on the user side, and the two may be connected via a communication line. It is also possible to store the element itself extracted by the element extraction means 20 in the design part data area 11 as one part data.

[0036]

As described above, according to the output device for the LSI design data sheet of the present invention, the LSI design component data is prepared as a database, only the elements required by the user are extracted from this database, and the extracted elements are extracted. Since the data is edited according to the format setting desired by the user and is output as a data sheet, the information required by the user can be provided in the format desired by the user.

[Brief description of drawings]

FIG. 1 is a block diagram showing a basic configuration of an output device for an LSI design data sheet according to the present invention.

FIG. 2 is a diagram showing each stage of a general LSI design work.

FIG. 3 is a diagram showing a specific example of general LSI design component data.

FIG. 4 is a diagram showing an example of element extraction processing and component synthesis processing for LSI design component data.

FIG. 5 is a diagram showing a simple model for explaining the mutual relation of LSI design component data.

6 is a diagram showing an example of mask pattern data extracted by the apparatus shown in FIG.

7 is a diagram showing a result of editing the mask pattern data shown in FIG.

FIG. 8 is a diagram showing an example of a data sheet output by the device shown in FIG.

[Explanation of symbols]

1 ... Function design stage 2 ... Logic design stage 3 ... Circuit design stage 4 ... Layout design stage 10 ... Storage means 11 ... Design component data area 12 ... Process data area 20 ... Element extracting means 30 ... Component synthesizing means 40 ... Expression converting means 50 ... Input means 60 ... Sheet information creation means 70 ... Sheet output means A ... D ... Parts data F1 ... Polysilicon layer F2 ... Diffusion layer a1 to a3, b1 to b3, c1 to c2, d1 to d3 ... Element e ... External Elements (design rules) I1 to I3 ... Inverters T1, T2 ... Transistors P1 to P6 ... Processing process / process data

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yuji Machiya 1-1-1 Ichigaya-Kagacho, Shinjuku-ku, Tokyo Dai Nippon Printing Co., Ltd.

Claims (3)

[Claims] 1. A device for outputting data sheets for various parts used in LSI design, comprising storage means for holding part data of each part as a database, and desired part data, which is inherent in the part data. Element extraction means for extracting a specific element, sheet information creation means for creating sheet information by editing the element data extracted by the element extraction means based on predetermined information, and based on the sheet information A sheet output means for outputting a data sheet, and element specifying information for specifying an element to be extracted to the element extracting means, and an editing process to be performed on the sheet information creating means. Element edit information for specifying, and formatting information for specifying the format related to the sheet information to be created, LSI design data sheet of the output device, characterized in that it comprises input means for force, the. 2. The apparatus according to claim 1, wherein new component data is synthesized by synthesizing an element existing in desired component data or an element input from the outside and added to a database in the storage means. And a process data storage unit for storing the process of the extraction process performed by the element extraction unit and the process of the synthesis process performed by the component synthesis unit. Output device. 3. The apparatus according to claim 2, further comprising expression conversion means for generating another element by converting an expression of an element existing in desired component data, and the expression conversion by this expression conversion means. An output device for an LSI design data sheet, characterized in that a processing process is stored in a process data storage means.