摘要:
There is disclosed a method of correcting a design pattern considering a process margin between layers of a semiconductor integrated circuit, including calculating a first pattern shape corresponding to a processed pattern shape of a first layer based on a first design pattern, calculating a second pattern shape corresponding to a processed pattern shape of a second layer based on a second design pattern, calculating a third pattern shape using a Boolean operation between the first and second pattern shapes, determining whether or not an evaluation value obtained from the third pattern shape satisfies a predetermined value, and correcting at least one of the first and second design patterns if it is determined that the evaluation value does not satisfy the predetermined value.
摘要:
There is disclosed a method of correcting a design pattern considering a process margin between layers of a semiconductor integrated circuit, including calculating a first pattern shape corresponding to a processed pattern shape of a first layer based on a first design pattern, calculating a second pattern shape corresponding to a processed pattern shape of a second layer based on a second design pattern, calculating a third pattern shape using a Boolean operation between the first and second pattern shapes, determining whether or not an evaluation value obtained from the third pattern shape satisfies a predetermined value, and correcting at least one of the first and second design patterns if it is determined that the evaluation value does not satisfy the predetermined value.
摘要:
There is disclosed a method of producing a design layout by optimizing at least one of design rule, process proximity correction parameter and process parameter, including calculating a processed pattern shape based on a design layout and a process parameter, extracting a dangerous spot having an evaluation value with respect to the processed pattern shape, which does not satisfy a predetermined tolerance, generating a repair guideline of the design layout based on a pattern included in the dangerous spot, and repairing that portion of the design layout which corresponds to the dangerous spot based on the repair guideline.
摘要:
There is disclosed a method of producing a design layout by optimizing at least one of design rule, process proximity correction parameter and process parameter, including calculating a processed pattern shape based on a design layout and a process parameter, extracting a dangerous spot having an evaluation value with respect to the processed pattern shape, which does not satisfy a predetermined tolerance, generating a repair guideline of the design layout based on a pattern included in the dangerous spot, and repairing that portion of the design layout which corresponds to the dangerous spot based on the repair guideline.
摘要:
Disclosed is a mask data processing method of correcting a hierarchical structure. In the case that in design data having a hierarchical structure including a plurality of cells each having a design pattern, when the total number of graphic forms or the total edge length of a design pattern on which the calculation of mask data processing is to be executed, the amount of calculation to be executed, or the expansion degree presumably becomes equal to or larger than a predetermined threshold value if the calculation of the mask data processing is executed on the design data having the initial hierarchical structure, the hierarchical structure is corrected. This correction is performed to reduce the total number of graphic forms or the total edge length of the design pattern on which the calculation is to be executed, the amount of calculation to be executed, of the expansion degree.
摘要:
Disclosed is a mask data processing method of correcting a hierarchical structure. In the case that in design data having a hierarchical structure including a plurality of cells each having a design pattern, when the total number of graphic forms or the total edge length of a design pattern on which the calculation of mask data processing is to be executed, the amount of calculation to be executed, or the expansion degree presumably becomes equal to or larger than a predetermined threshold value if the calculation of the mask data processing is executed on the design data having the initial hierarchical structure, the hierarchical structure is corrected. This correction is performed to reduce the total number of graphic forms or the total edge length of the design pattern on which the calculation is to be executed, the amount of calculation to be executed, of the expansion degree.
摘要:
A mask pattern data creation method includes: determining whether or not a spacing of adjacent assist pattern feature data is not more than a prescribed spacing, based on: initial position data indicating an initially set position of the assist pattern feature data determined based on an illumination condition; and initial size data indicating an initially set size of the assist pattern feature data satisfying a size condition to not optically form an image on the transfer destination; and moving at least one of the adjacent assist pattern feature data or reducing a size of the at least one to increase the spacing of the assist pattern feature data to exceed a prescribed spacing in the case where it is determined that the spacing of the assist pattern feature data is not more than the prescribed spacing.
摘要:
A pattern of a desired size is formed on a semiconductor substrate by the following procedure. A property, including at least one of an aberration of an exposure device, a property of an illumination, a property of a projection lens, and a pattern coverage in a shot, are allocated, in a first database, to predetermined positions assigned in a chip. A second database is prepared by pairing a cell name of a cell extracted from hierarchical processing of a design pattern and arrangement positional data of the cell. The property data is allocated to the cell based on the first and second databases. Mask data processing based on at least one of the property data is executed, and the cell subjected to the mask data processing is rearranged on the chip.
摘要:
A pattern forming method for forming a pattern of a desired size on a substrate of a semiconductor device, includes preparing a first database by allocating property data to each position in a chip when the pattern is exposed, preparing a second database by pairing a cell name of a cell extracted from hierarchical processing of a design pattern and arrangement positional data of the cell, by allocating the property data to the cell based on the first database and the second database, executing mask data processing based on at least one of the property data, and rearranging on the chip the cell subjected to the mask data processing.
摘要:
A mask pattern data creation method includes: determining whether or not a spacing of adjacent assist pattern feature data is not more than a prescribed spacing, based on: initial position data indicating an initially set position of the assist pattern feature data determined based on an illumination condition; and initial size data indicating an initially set size of the assist pattern feature data satisfying a size condition to not optically form an image on the transfer destination; and moving at least one of the adjacent assist pattern feature data or reducing a size of the at least one to increase the spacing of the assist pattern feature data to exceed a prescribed spacing in the case where it is determined that the spacing of the assist pattern feature data is not more than the prescribed spacing.