摘要:
PROBLEM TO BE SOLVED: To provide a reflective mask capable of mask inspection by pattern comparison on a layout in a mode of scan exposure by injecting exposure light slantly to the mask, and its inspection method. SOLUTION: The reflective mask for irradiating the exposure light slightly incident to a mask surface over a predetermined exposure area and projecting light reflected on the mask surface to a wafer for scan exposure includes a plurality of rectangular chip regions 11a-11f containing the same mask patterns arranged in a scanning direction 12. When shape correction is made depending on a distance from the center line of an exposure area 21 (azimuth angle θ), the two chip regions 11a and 11b have the identical mask patterns after the shape correction. Thus the identical patterns can be compared with each other on the layout to perform die-to-die inspection for defect inspection of the mask pattern. COPYRIGHT: (C)2010,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a device and a method for inspecting mask blank, that improve detection sensitivity to and detection reliability of a phase defect and an amplitude defect which are too high in defect height to detect only through dark field detection. SOLUTION: The device for inspecting mask blank includes a stage 2 on which a reflection type mask blank MB is mounted, a light source 1 which emits inspection light BM, a mirror 10 as a lighting optical system, an imaging optical system L, a two-dimensional array sensor S, a defect detection signal storage unit 6, a defect detection processing unit 7, a defect information storage unit 8, a main control unit 9 which controls the whole device, etc. The stage 2 is provided with a tilting mechanism to vary the angle of incidence and the angle of regular reflection of the inspection light BM on the mask blank MB. COPYRIGHT: (C)2010,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a method for forming mask pattern data for easily and quickly executing mask data processing for flare compensation without losing pattern dimension precision, and to provide a method for manufacturing a semiconductor apparatus. SOLUTION: A pattern to be corrected is a gate pattern including a wiring section and an active gate section formed on a diffusion layer. The method for forming a mask pattern data includes: extracting a diffusion pattern from design mask pattern data; widening the width of the extracted diffusion layer pattern only by predetermined width Δw to generate a second diffusion layer pattern; extracting a gate pattern existing on the second diffusion layer pattern to generate an extended second active gate section; and performing uniform quantity correction to individual second active gate section. COPYRIGHT: (C)2009,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a reflective mask capable of suppressing a leak of exposure light from an overlap portion between adjacent shots and reducing an influence of shadowing of the exposure light. SOLUTION: The reflective mask is a reflective mask having a main surface irradiated with the exposure light 40, and has a pattern region 10 provided in the main surface, the pattern region 10 including a multilayered reflective film 2 which reflects the exposure light 40, and first absorber patterns 4 and 5 provided on the multilayered reflective film 2, absorbing the exposure light 40, and having a pattern corresponding to a pattern to be formed on a wafer, and a light shield region 11 provided in the main surface, the light shield region 11 being provided with second absorber patterns 4 to 6 having lower reflectivity to the exposure light 40 than the first absorber patterns 4 and 5 so as to prevent a region of the wafer other than a predetermined region from being irradiated with the exposure light 40 when the pattern is transferred to the predetermined region on the wafer by irradiating the main surface with the exposure light 40. COPYRIGHT: (C)2009,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To form wiring patterns with a narrow pitch and to provide a plug connected to the wiring patterns with high tolerance. SOLUTION: A first pattern 11 is formed on a conductive film and thinned through trim etching. A second pattern 12 of closed loop is formed around a fine first pattern 11a in a self-aligned manner. The second pattern 12 is partially divided into a third pattern 12a. The conductive film is subjected to etching using the third pattern 12a as a mask for the formation of a wiring pattern 13. The wiring pattern 13 is covered with an interlayer insulating film, and then an opening 14 is provided inside the interlayer insulating film so as to make the curved end of the wiring pattern 13 exposed. The opening 14 is filled up with a conductive film for the formation of the plug. COPYRIGHT: (C)2006,JPO&NCIPI
摘要:
PROBLEM TO BE SOLVED: To increase the efficiency of producing semiconductor devices by using an extreme ultra violet (EUV) lithography technique. SOLUTION: In an EUV lithography mask (a reflection type mask) for hole pattern formation including at least an absorber pattern, a multilayer film and a substrate as constituent elements, an absorber of the mask is formed to have such a film thickness that a reduction in exposure margin due to an undesired absorber residue (a black defect) in a hole part on the mask is the same as that in exposure margin due to an absorber missing part (a white defect) of the same area. COPYRIGHT: (C)2010,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a mask blank inspection device and method capable of inspecting accurately and simply existence and the kind of a defect of a reflective mask blank. SOLUTION: The mask blank inspection device is constituted of a stage 2 for mounting a reflective mask blank M thereon, a light source 1 for generating inspection light BM, a mirror 10 serving as an illuminating optical system, a dark field imaging optical system L, a beam splitter BS, two two-dimensional array sensors Sa, Sb, signal storage units 6, 7, an image processing unit 8, and a main control unit 9 for controlling operation of the whole device, or the like. The sensor Sa is arranged on a position displaced by a predetermined distance d1 along a light traveling direction from an imaging plane IPa of a light flux 14a. The sensor Sb is arranged on a position displaced by a predetermined distance d2 in the opposite direction to the light traveling direction from an imaging plane IPb of a light flux 14b. COPYRIGHT: (C)2009,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide mask designing techniques capable of shortening the increased OPC (Optical Proximity Correction) processing time, shortening the manufacture TAT (Turn Around Time) of a semiconductor device, thereby reducing cost. SOLUTION: A cell library pattern constituting a basic configuration of a semiconductor circuit pattern is preliminarily subjected to an OPC processing for the layout of a single pattern, and the processed cell library pattern is used to produce a semiconductor chip. A plurality of cell libraries are laid to design a mask pattern and the correction amount by the OPC applied to the cell library is changed by considering the influences of cell library patterns laid in the periphery. Further, a group of cells in the identical layout of the objective cell as well as peripheral cells is extracted and registered as a cell set, so that OPC on identical cell sets is carried out not by repeating computation but by copying. COPYRIGHT: (C)2007,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a method for manufacturing a semiconductor device and a method for preparing mask pattern data by which a pattern shape to be formed on a wafer can be stabilized. SOLUTION: The method for manufacturing the semiconductor device, which has a first wiring pattern extending in the longitudinal direction and a second pattern having the same shape as the first wiring pattern and extending in the direction (transverse direction) orthogonal to the longitudinal direction, comprises: a step of exposing along a mask pattern which contains a mask pattern 16 for forming the first pattern and a mask pattern 17 for forming the second pattern by using illumination with linearly polarized light; and a step of forming the first and second patterns following the mask patterns 16, 17 after exposure, wherein shapes of the mask patterns 17, 17 are different from each other. COPYRIGHT: (C)2005,JPO&NCIPI
摘要:
PROBLEM TO BE SOLVED: To always acquire high dimensional accuracy with little variation in exposure throughput (number of sheets) by preventing the deformation of a resist mask using resist as a light shielding body due to irradiation with exposure light. SOLUTION: Photomask patterns are formed by using a resist containing Si in a base resin or a resist having with metals, such as Si, introduced by a silylation process as the light shielding body, thereby improving the resistance to active oxygen. COPYRIGHT: (C)2004,JPO