JPH02236674A - Data processing method - Google Patents

Abstract

PURPOSE:To make the simulation input data of a parasitic element highly accurate by evaluating the relation between a driving element and the parasitic element, determining the output format of the parasitic element, and generating the simulation input data of the parasitic element. CONSTITUTION:The relation between the driving element and parasitic element arranged from layout pattern data 11 is evaluated 16, the output format of the parasitic element is determined 17 based on the information of the evaluation 16, and the simulation input data of a layout pattern is generated 22 based on the format information. That is, by evaluating the relation between the driving element and the parasitic element, the output format of parasitic element is determined, and the simulation input data of the parasitic element generated. Thus the highly accurate simulation input data conforming to the real layout pattern data can be generated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a data processing method for generating simulation input data from layout patterns, and particularly to a data processing method for circuit design. [Prior Art] Figure 2 is an explanatory diagram showing a conventional data processing process. The conventional data processing method performs graphical operations on layout pattern data 1 after completion of layout pattern design to recognize each element (process 12), and generates connection data 13. Next, a process 22 generates a netlist from the connection data 13 (process 19), and generates simulation input data 23 using the generated netlist data 20 and model parameter data 21 prepared in advance. 》． [Problem to be Solved by the Invention] Since the conventional data processing method is configured as described above, it is possible to extract highly accurate simulation input data regarding the original drive elements that have been laid out. Regarding the parasitic elements formed along with the elements, there is a drawback that accurate simulation input data cannot be obtained depending on the element values. Also,
Even if this data were obtained, there were drawbacks such as meaningless data being extracted.

The present invention was made to eliminate the above-mentioned drawbacks, and aims to provide a data processing method that can generate highly accurate simulation input data that does not include meaningless data, and is useful for improving the quality of devices. Suppose that [Means for Solving the Problems] The data processing method according to the present invention evaluates the relationship between the laid out drive element and the parasitic element from layout pattern data, and determines the output formant of the parasitic element from the information of this evaluation. Then, layout pattern simulation input data is generated from this formant information.

[For production]

By evaluating the relationship between the driving element and the parasitic element, the output format of the parasitic element is determined, and the simulation input data of the parasitic element is generated. [Example] Next, the present invention will be explained with reference to the drawings. FIG. 1 is an explanatory diagram of a data processing process showing an embodiment of the present invention. The explanation will be given below according to this figure.

First, from the layout pattern data 11 after completion of layout pattern design, graphical operations are performed to recognize each laid out element (process 12), and connection data 13 is generated. Next, a table of connection relationships of each element is generated from the generated connection data 13 (processing 14). and,
Extract the parasitic elements from this connection relationship table 15,
The relationship between the parasitic element and the element that drives it is evaluated (process 16). Next, the output format of the parasitic element is determined by comparing it with a parasitic element output format relationship table built in in advance (processing 17). Then, the element value (size) of the parasitic element is evaluated (process 18), and it is determined whether to output it as netlist data. next,
Netlist data is generated according to the content determined above (processing 19), and simulation input data 23 is generated using the generated netlist data 20 and model parameter data 21 prepared in advance (processing 22). ．． In this way, the data processing device in this embodiment has added processing units for evaluating the relationship between parasitic elements and drive elements, determining the parasitic element output formant, and evaluating the parasitic element size, and is capable of processing based on actual layout pattern data. Since highly accurate simulation input data can be generated, for example, circuit design quality (operation simulation, etc.) can be checked before mask production, and design quality can be improved. [Effects of the Invention] As explained above, the present invention determines the output formant of the parasitic element by evaluating the relationship between the driving element and the parasitic element, and generates the simulation input data of the parasitic element. Therefore, highly accurate simulation input data for parasitic elements can be obtained. In addition, by using such a data processing method,
For example, it has excellent effects such as being able to check the circuit design quality before manufacturing the element mask, and improving the design quality.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of a data processing process showing an embodiment of the present invention, and FIG. 2 is an explanatory diagram showing a conventional data processing process. 11... Layout pattern data, 13... Connection data, 15... Connection relationship table, 20... Netlist data, 21... Model parameters, 23.
...Simulation input data.

Claims (1)

[Scope of Claims] A data processing method for simulating the operation of the designed element by extracting layout pattern data after completing the layout pattern design of the element, comprising: A data processing method comprising: evaluating a relationship, determining an output format of the parasitic element from information on this evaluation, and generating simulation input data for a layout pattern from information on this format.