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:
In the method of correcting a mask pattern according to the embodiments, a mask pattern correction amount for a reference flare value is calculated as a reference mask correction amount, for every type of patterns within the layout, and a change amount of the mask pattern correction amount corresponding to the change amount of the flare value is calculated as the change amount information. A mask pattern corresponding to the flare value of the pattern is created based on the reference mask correction amount and the change amount information corresponding to the pattern, extracted from the information having the pattern, the reference mask correction amount, and the change amount information correlated with each other, and based on a difference between the flare value of the pattern and the reference flare value.
摘要:
A semiconductor device is provided having a physical pattern based on a designed pattern, the designed pattern including a target pattern and a correction pattern designed for a pattern to be formed on a wafer; the target pattern includes a first portion of an edge with a first distance, a second portion of the edge with a second distance, which is different from the first distance, and a third portion of the edge having a first region of the edge with the first distance and a second region of the edge with the second distance; and the correction pattern is added to at least one of the first portion, the second portion, and the third portion such that the first portion, the second portion, and the third portion are caused to differ from one another in dimensions of the designed pattern.
摘要:
According to one embodiment, a semiconductor device includes interconnects extending from a element formation area to the drawing area, and connected with semiconductor elements in the element formation area and connected with contacts in the drawing area. The interconnects are formed based on a pattern of a (n+1)th second sidewall film matching a pattern of a nth (where n is an integer of 1 or more) first sidewall film on a lateral surface of a sacrificial layer. A first dimension matching an interconnect width of the interconnects and an interconnects interval in the element formation area is (k1/2n)×(λ/NA) or less when an exposure wavelength of an exposure device is λ, a numerical aperture of a lens of the exposure device is NA and a process parameter is k1. A second dimension matching an interconnect interval in the drawing area is greater than the first dimension.
摘要:
A pattern data creating method comprising: referring to a first correspondence relation between an amount of dimension variation between a first pattern formed on a substrate and a second pattern formed by processing the substrate using the first pattern and either one of a pattern total surface area and a pattern boundary length of the first pattern; and creating pattern data for forming the first pattern.
摘要:
A method of manufacturing a semiconductor device, which forms a pattern by performing pattern transformation steps multiple times, comprises setting finished pattern sizes for patterns to be formed in each consecutive two pattern transformation steps among the plurality of pattern transformation steps based on a possible total amount of in-plane size variation of the patterns to be formed in the consecutive two pattern transformation steps.
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 verification method comprising 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, 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 being displacement between first point and the evaluation point, 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:
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 pattern forming method of forming a desired pattern on a semiconductor substrate is disclosed, which comprises extracting a first pattern of a layer, extracting a second pattern of one or more layers overlapped with the layer, the second pattern being arranged close to or overlapped with the first pattern, calculating a distance between the first and second patterns on a semiconductor substrate in consideration of a predetermined process variation, determining whether or not the distance between the first and second patterns satisfy an allowable margin given for the distance between the first and second patterns, and correcting, if the distance does not satisfy the allowable margin, at least one of the first and second patterns to satisfy the allowable margin.