摘要:
Pattern formation simulations are performed based on design layout data subjected to OPC processing with a plurality of process parameters set in process conditions. A worst condition of the process conditions is calculated based on risk points extracted from simulation results. The design layout data or the OPC processing is changed such that when a pattern is formed under the worst condition based on the changed design layout data or the changed OPC processing a number of the risk points or a risk degree of the risk points of the pattern is smaller than the simulation result.
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:
A process control method comprises adjusting a process condition in consideration of a performance variation among a plurality of manufacturing apparatuses, the performance variation affecting a finished shape of a pattern used to manufacture a semiconductor device, running a simulation of the finished shape under the adjusted process condition, extracting a dangerous point of the pattern affecting satisfaction from the result of the simulation, comparing a first process capability serving as a judgment standard to find whether a production schedule of the device is achieved with a second capability serving to form a dangerous pattern containing the dangerous point, and improving the second process when the second process capability is lower than the first process capability.
摘要:
A block film is formed on a region which includes a region of an insulating layer where a first hole is to be formed, and in which no second hole is to be formed, and a resist film having openings for forming the first and second holes is formed on the block film and insulating layer. Etching is performed by using the resist film as a mask, thereby forming the first hole in the block film and insulating layer, and the second hole in the insulating layer. The depth of the first hole from the upper surface of the insulating layer is smaller than that of the second hole, so the first hole does not reach the semiconductor substrate.
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 semiconductor memory device includes a semiconductor substrate on which memory cells are formed. Interconnects are arranged along a first direction above the semiconductor substrate, and have regular intervals along a second direction perpendicular to the first direction. Interconnect contacts connect the interconnects and the semiconductor substrate, are arranged on three or more rows. The center of each of two of the interconnect contacts which are connected to the interconnects adjacent in the second direction deviate from each other along the first direction.
摘要:
A semiconductor device includes a semiconductor substrate, and a circuit pattern group comprising at least N (≧2) circuit pattern on the semiconductor substrate, at least one vicinity of end portion among the at least of N circuit patterns including a connection area to electrically connect to a circuit pattern in another circuit pattern group different from the circuit pattern group, the at least N wirings pattern including a circuit pattern N1 and at least one circuit pattern Ni (i≧2) arranged in one direction different from longitudinal direction of the circuit pattern N1, the at least one circuit patterns Ni having larger i being arranged at further position away from the circuit pattern N1, and in terms of a pattern including the connection area among the at least of Ni circuit patterns, the larger the i, the connection area being arranged at a further position in longitudinal direction.
摘要:
Method of calculating pattern-failure-occurrence-region comprising calculating a pattern failure occurrence region using relation information and a layout used for forming a convex section, the relation information being a relation between a distance from a formed pattern in a film to cover the convex section on a substrate to the convex section and a region in the film in which a shape of the formed pattern cannot satisfy a predetermined condition because of influence of the convex section.
摘要:
A pattern verification method according to an embodiment includes, dividing a pattern data region or a pattern formation region formed based on the pattern data to a plurality of unit regions, calculating a pattern area ratio with respect to each unit region, calculating differences in the amount of the pattern area ratio between each unit region and adjacent unit regions thereto, setting the number or density of measurement point with respect to each unit region to the pattern of the pattern data region or the pattern formation region according to the difference in the amount of pattern area ratio, measuring the pattern size at each measurement point, and verifying whether the size measurement value is within a predetermined range or not.
摘要:
A mask pattern data generating method is disclosed, which comprises preparing mask pattern data which corresponds to a design pattern including a pair of line patterns formed of two line patterns, and disposing an auxiliary pattern which is un-transferable to a resist film at a center of a space region between the pair of line patterns, in which the disposing of the auxiliary pattern includes obtaining a shape of the auxiliary pattern which meets formulae in which a width in the short edge direction of the auxiliary pattern, a space width between the auxiliary pattern and one of the pair of line patterns, a wavelength of an exposure light emitted by a projection aligner using a photo mask at exposure, and a numerical apertures of a projection lens of the projection aligner are defined as parameters, and disposing the obtained auxiliary pattern at the center of the space region.