摘要:
There is disclosed a pattern correcting method comprising extracting a correction pattern, at least the one or more correction patterns being included in a first design pattern formed on a substrate, acquiring layout information from the first design pattern, the layout information affecting a finished plane shape of the correction pattern on the substrate, determining contents of correction onto the correction pattern on the basis of the layout information, generating a design pattern-2 corresponding to the layout information so as to be associated with the correction pattern, and correcting the correction pattern in accordance with the contents of correction corresponding to the design pattern-2.
摘要:
There is disclosed a pattern correcting method comprising extracting a correction pattern, at least the one or more correction patterns being included in a first design pattern formed on a substrate, acquiring layout information from the first design pattern, the layout information affecting a finished plane shape of the correction pattern on the substrate, determining contents of correction onto the correction pattern on the basis of the layout information, generating a design pattern-2 corresponding to the layout information so as to be associated with the correction pattern, and correcting the correction pattern in accordance with the contents of correction corresponding to the design pattern-2.
摘要:
According to a sub-resolution assist feature arranging method in embodiments, it is selected which of a rule base and a model base is set for which pattern region on pattern data corresponding to a main pattern as a type of the method of arranging the sub-resolution assist feature for improving resolution of the main pattern formed on a substrate. Then, the sub-resolution assist feature by the rule base is arranged in a pattern region set as the rule base and the sub-resolution assist feature by the model base is arranged in a pattern region set as the model base.
摘要:
A pattern correcting method for correcting a design pattern to form a desired pattern on a wafer is disclosed, which comprises defining an allowable dimensional change quantity of each of design patterns, defining a pattern correction condition for the each design pattern based on the allowable dimensional change quantity defined for the each design pattern, and correcting the each design pattern based on the pattern correction condition defined for the each design pattern.
摘要:
A pattern data correction method is disclosed, which comprises preparing an integrated circuit pattern, setting a tolerance to the pattern that is allowable error range when the pattern is transferred on a substrate, creating a target pattern within the tolerance, and making correction for the target pattern to make a first correction pattern under a predetermined condition.
摘要:
Disclosed is a method of manufacturing a photo mask comprising preparing mask data for a mask pattern to be formed on a mask substrate, calculating edge moving sensitivity with respect to each of patterns included in the mask pattern using the mask data, the edge moving sensitivity corresponding to a difference between a proper exposure dose and an exposure dose to be set when a pattern edge varies, determining a monitor portion of the mask pattern, based on the calculated edge moving sensitivity, actually forming the mask pattern on the mask substrate, acquiring a dimension of a pattern included in that portion of the mask pattern formed on the mask substrate which corresponds to the monitor portion, determining evaluation value for the mask pattern formed on the mask substrate, based on the acquired dimension, and determining whether the evaluation value satisfies predetermined conditions.
摘要:
According to the present invention, there is provided a method of correcting a finish pattern dimension by using OPC when a design pattern is formed on a wafer, comprising: selecting and determining a first design pattern included in the design pattern; acquiring a measurement value of a first finish pattern dimension when the first design pattern is formed on a wafer; determining a first calculation model by using the first finish pattern dimension; selecting and determining a second design pattern from the design pattern except for the first design pattern; performing first simulation by using the first calculation model, and calculating a second finish pattern dimension when the second design pattern is formed on a wafer; determining a second calculation model for performing second simulation which is faster than the first simulation, by using the first and second finish pattern dimensions; and performing the second simulation by using the second calculation model, and calculating a third finish pattern dimension of a third design pattern of the design pattern except for the first and second design patterns.
摘要:
A pattern verification method includes preparing a desired pattern and a mask pattern forming the desired pattern on a substrate, defining at least one evaluation point on an edge of the desired pattern, defining at least one process parameter to compute the transferred/formed pattern, defining a reference value and a variable range for each of the process parameters, and computing a positional displacement for each first points corresponding to the evaluation point, first points computed using correction mask pattern and a plurality of combinations of parameter values obtained by varying the process parameters within the variable range or within the respective variable ranges. The positional displacement is a displacement between first point and the evaluation point. The method further includes computing a statistics of the positional displacements for each of the evaluation points, and outputting information modifying the mask pattern according to the statistics.
摘要:
A method of correcting a finish pattern dimension by using OPC when a design pattern is formed on a wafer, including selecting and determining a first design pattern included in the design pattern; acquiring a measurement value of a first finish pattern dimension when the first design pattern is formed on a wafer; determining a first calculation model by using the first finish pattern dimension; selecting and determining a second design pattern from the design pattern except for the first design pattern; performing first simulation by using the first calculation model, and calculating a second finish pattern dimension when the second design pattern is formed on a wafer; determining a second calculation model for performing second simulation which is faster than the first simulation, by using the first and second finish pattern dimensions; and performing the second simulation by using the second calculation model, and calculating a third finish pattern dimension of a third design pattern of the design pattern except for the first and second design patterns.
摘要:
A lithography simulation method includes: taking in design data of a pattern to be formed on a substrate and mask data to prepare a mask pattern used in forming a latent image of the pattern on the substrate by transmission of an energy ray; obtaining the latent image of the pattern by calculation of an intensity of the energy ray; locally changing, at least in a portion corresponding to a pattern to be interested, a relative position in a direction of the intensity of the energy ray between a latent image curve and a reference intensity line in accordance with a distance between the pattern to be interested and a pattern of a neighboring region, the latent image curve being an intensity distribution curve of the energy ray constituting the latent image, the reference intensity line being defined to specify a position of an edge of the pattern to be interested; and calculating a distance between intersections of a portion of the latent image curve corresponding to the pattern to be interested and the reference intensity line in the changed relative position to define an interested line width of the pattern to be interested.