JPS61872A - Data processor - Google Patents

Abstract

PURPOSE:To decrease the manual operation to reduce the circuit designing time and also to improve both the quality and the yield of products, by having a series of jobs between the input of the data on production of circuit diagram and the end of the circuit design. CONSTITUTION:A circuit diagram is supplied from an input device 7 of a work station 6, and the input data for simulation is produced automatically from the input data. Then the data is sent to a host computer 2 for the execution of simulation. An evaluation device 1 evaluates a model parameter, and the obtained evaluation data is stored on the station 6 to be used for production of the input data. While it is decided whether or not the result obtained through the execution of the computer 2 satisfies automatically the required conditions in consideration of the process variance. The result of this decision is outputted to an output device 9 of the station 6. In such a way, the circuit designing time is shortened and the quality and the yield are improved for products.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an improvement in a data processing device for circuit design.

[Prior art]

Conventionally, the configuration of this type of data processing apparatus was as shown in FIG. In the figure, 1 is an evaluation device, 2 is a host computer, and 3, 4.5 are an input device and a central processing unit/storage bag'-l output device of the host computer 2, respectively. The evaluation device 1 and the host computer 2 are
Each exists independently.

In a conventional data processing apparatus, input data for simulation is created manually from a circuit diagram, and inputted into the host computer 2 from the input device 3 to execute a circuit simulation. The execution result is output to the output device W5 of the host computer 2. The evaluation device 1 evaluates variations in processes such as the manufacturing process, and executes a circuit simulation by changing parameters such as a threshold current in the simulation data. In determining the execution results, a person compares the execution result data of each execution after changing the parameters.
Determine whether it meets the required specifications.

A conventional data processing device is configured as described above.
Input data for simulations must be created by humans reading drawings, and it is difficult to deal with process variations.
This method had the drawback of requiring human intervention in all aspects, such as requiring multiple executions using a single circuit and comparing the results of each execution, which was time-consuming.

[Summary of the invention]

This invention was made in order to eliminate the drawbacks of the conventional ones as described above, and it eliminates human intervention by making it possible to perform the process from inputting data for creating a circuit diagram to completing the circuit design in a series of operations. Reduce circuit design time <1
．． The aim is to provide data processing terms and settings that are useful for improving the quality of products.

[Embodiments of the invention]

Prior to a detailed explanation of the present invention, first of all, the present invention ＼＼: The configuration will be explained using the functional block diagram shown in FIG.

In the data processing device of the present invention, the circuit diagram editing and creation means 20
edits and creates a circuit diagram in accordance with external circuit diagram creation data, and evaluation means 21 evaluates process variations for the edited and created circuit diagram, and data creation means 22 evaluates both of the above-mentioned means 20.21. The simulation execution means 23 executes a circuit simulation of the circuit diagram edited and created according to the simulation data, and the determination means 24 determines whether the execution result is This is to determine whether or not the required specifications are met.In this way, the present invention enables the process from inputting circuit diagram creation data to completion of circuit design to be performed in a series of operations.

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

FIG. 3 shows a data processing device according to an embodiment of the present invention. In the figure, 1 is an evaluation device that evaluates the variation of processing in the edited circuit diagram, and 2 is a host that executes circuit simulation according to the simulation data and determines whether the execution result falls within the required specifications. 3 and 4.5 are the input devices of the host computer.

These are the central processing unit, storage device, and output device. 6 edits and creates a circuit diagram according to external circuit diagram creation data,
7. a workstation that creates simulation data including parameter data that takes process variations into account from the circuit diagram and the evaluation results; 7. 8. Reference numerals 9 denote an input device, a central processing unit/storage device, and an output device of the workstation 6, respectively. The workstation 6, evaluation device 1, and host computer 2 are connected through an interface.

Note that in the above configuration, the evaluation device 1 is a fourth
The workstation 6 serves as the evaluation means 21 in the diagram, and the workstation 6 realizes the functions of the circuit diagram editing and creation means 20 and the data creation means 22 in FIG. 4, and the host computer 2 serves as the fourth It realizes the functions of the simulation execution means 23 and determination means 24 shown in the figure.

Next, the operation will be explained.

In FIG. 2, when a circuit diagram is input from the input device W7 of the Works Stitchlon 6, input data for simulation is automatically created from the circuit diagram input data, and the data is sent to the host computer 2 for simulation. Execution takes place. The model parameters are evaluated by the evaluation device 1, and the obtained evaluation data is stored on the workstation 6 and used when creating input data. The results executed by the host computer 2 are automatically determined whether they satisfy the required specifications, taking into account process variations.
The determination result is output to the output device 9 of the workstation 6.

Here, the operation of the workstation 6 will be explained in more detail using the flowchart shown in FIG. When the designer performs a key operation on the workstation 6 (the fourth
(See 1) in Figure 4), workstation 6 first edits and creates the circuit diagram according to the above-mentioned key manual (see 1) in Figure 4).
1 in Fig. 4 is stored in the storage device 8 as graphic information.
2), and then extracts connection information such as which transistors are connected from the graphic information by executing a connection information extraction program (see 13 in FIG. 4) and stores it in the storage device 8. (See 14 in Figure 4)
. On the other hand, at this time, the storage device 8 stores the parameter data regarding the process variation from the evaluation device 1 as model parameters (see 15 in FIG. (See 16 in Fig. 4), create simulation data including model parameters using the connection information (see 17 in Fig. 4), and store it in the storage device 8 (see 17 in Fig. 4).
(See 18 in Figure 4).

The apparatus of this embodiment as described above can provide the following effects.

(i) Since simulation data is automatically created on the workstation, circuit design time can be significantly reduced.

(ii) Since simulation data that takes process variations into account is automatically created, circuit design time can also be shortened.

(iii) Since it is automatically determined whether the simulation execution meets the required specifications, circuit design time can also be shortened.

(iv) Since human intervention is reduced, there are almost no errors in creating simulation data or errors in determining execution results, and product quality and yield can be significantly improved.

(v) The workstation edits and creates circuit diagrams and creates simulation data, and the host computer performs simulation execution and determination, so processing speed can be increased.

In the above embodiment, the host computer performs simulation execution and determination, but these may also be performed by a workstation.

Furthermore, creation of simulation data does not necessarily have to be done in an interactive manner.

〔Effect of the invention〕

As described above, according to the data processing device according to the present invention, the process from inputting the circuit diagram to completing the circuit design can be performed in a series of operations, so that the circuit design time can be significantly shortened.
It also has the effect of improving product quality and yield.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a conventional data processing device, FIG. 2 is a functional block diagram showing the configuration of the present invention, FIG. 3 is a block diagram of a data processing device according to an embodiment of the present invention, and FIG.
The figure is a diagram showing a flowchart of the operation of the above device. In the figure, 1 is an evaluation device, 2 is a host computer, 6 is a workstation, 20 is a circuit diagram editing and creation means, 21 is an evaluation means, 22 is a data creation means, 23 is a simulation execution means, and 24 is a judgment means. .

Claims (2)

[Claims] (1) A data processing device capable of performing a series of operations from circuit diagram input to circuit design, and circuit diagram editing and creation means for editing and creating a circuit diagram in accordance with external circuit diagram creation data; an evaluation means for evaluating process variations for the circuit diagram edited and created; a data creation means for receiving the outputs of both the circuit diagram editing and creation means and the evaluation means and creating simulation data in consideration of the evaluation results; The present invention is characterized by comprising a simulation execution means for executing a circuit simulation of the circuit diagram edited and created according to the simulation data, and a determination means for determining whether the result of the execution falls within the required specifications. Data processing equipment. (2) The functions of the circuit diagram editing and creation means and data creation means are realized on a workstation;
2. The data processing apparatus according to claim 1, wherein the functions of the simulation execution means and the determination means are realized by a host computer.