Abstract:
PROBLEM TO BE SOLVED: To provide an exposure control apparatus for exposing a shot of a wafer circumference with high yield and high efficiency. SOLUTION: The exposure control apparatus includes an exposure presence-setting unit 12 that performs an exposure setting of setting an exposure shot as a shot that is exposed or a shot that is not exposed based on height information on a height of the wafer in the exposure shot arranged in the after circumference, and an exposure instructing unit 14 that outputs an exposure instruction to the shot that is exposed and an instruction to skip an exposure to the shot that is not exposed by the exposure presence-setting unit 12. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To form a desired fine pattern with less dimensional variation. SOLUTION: In a region where a semitransmissive region Tb, a transmissive region Ta, and a light-shielding portion S are successively disposed along a longitudinal direction of a L/S pattern from an end portion Ma of a memory cell region M positioned in the center of the entire region Z of the pattern, wherein a dimension in a width direction of the L/S pattern in the semitransmissive region Tb is set larger with the shorter the distance from the semitransmissive region Tb to the light-shielding portion S. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To realize a NAND-type flash memory with a high reliability. SOLUTION: This invention relates to a semiconductor memory device which is provided with at least a first wiring layer and a second wiring layer in order at an upper layer than a gate wiring and can electrically write data in a memory cell, wherein the memory cell has a word line and a bit line, and the word line connected to the memory cell is formed by the gate wiring, and the word line is connected by using a three-layer wiring comprising the gate wiring, the first wiring layer and the second wiring layer when the word line is connected to a source or a drain of a first transistor, and in a connection region a maximum potential difference between fellow gate wirings is not greater than a writing voltage, and a maximum potential difference between fellow first wirings is not greater than the writing voltage or is not greater than a first voltage for transmitting the writing voltage by means of the first transistor, and a maximum potential difference between fellow second wiring layers is not greater than the writing voltage or an erasing voltage. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To restrain the changing of effectual light exposure between apparatuses which a photopolymer film obtained by the difference of temperatures between the apparatuses. SOLUTION: The temperature proofreading method of a heat treatment apparatus is provided with a process for preparing a plurality of the heat treatment apparatuses, a process wherein a substrate with a light exposure monitor pattern formed is subjected to heat treatment at a plurality of setting temperatures in each of the prepared heat treatment apparatuses, a process for measuring the status of the light exposure monitor pattern at either after cooling treatment or after development processing, a process for obtaining a relation between a setting temperature and effectual light exposure about each of the heat treatment apparatuses from a plurality of the setting temperatures and the measured status of the light exposure monitor pattern, and a process wherein the setting temperature is corrected so that predetermined effectual light exposure is obtained about each of the heat treatment apparatuses from the obtained relation. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a wafer-flatness evaluation method whereby the flatnesses present in the surface of a wafer can be evaluated in the state closer to a flatnesses which an exposure device can sense. SOLUTION: The wafer-flatness evaluation method has a process (300) for measuring the front and rear surface shapes of a wafer, a process (301) for partitioning the front and rear surfaces of the wafer into their sites, processes (302, 303, 304, 305) for selecting wafer-flatness calculating ways in response to the positions of the valuing sites, and a process (306) for acquiring the flatnesses present in the surface of the wafer. COPYRIGHT: (C)2004,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To test an aligner promptly in a simple way, without disassembling the aligner. SOLUTION: In this testing method, an aligner consists of a light source, a lighting optical system 1 for conducting the light from the light source to a photo mask, and a projection optical system 3 for transferring a reduced image onto a wafer 5. The testing method is user for testing the configuration of light source of the aligner, a configuration of a pupil 4 in the projection optical system 3, and a degree of concentricity between the light source configuration and the pupil 4. The light from the light source is irradiated the reticle 2 with lattice pattern, in which light transmitting and shielding parts are repeated in a finite cycle. Then, an outer edge of the pupil 4 in the projection optical system 3 is irradiated with light with first or higher orders of diffraction, and at the same time, a pattern image of the reticle 2 in a defocused state is exposed on the wafer 5.
Abstract:
PURPOSE:To obtain a fine contact hole pattern group, by forming patterns periodically in two directions on the mask surface, forming phase difference in the lights passing neighboring patterns, and making the emission surface light intensity of a light source large in the region distant from the optical axis. CONSTITUTION:The reticle 5 has 5 an optical shielding part 9 which does not transmit exposure light, and an aperture part 10 which transmits the exposure light, on a transparent substrate. A phase shifter part 11 formed by digging the substrate in the aperture part is arranged. The phase shifter part 11 is so formed that the phase difference of light passing the part 11 becomes nearly 180 deg. with respect to the aperture part 10. A light source filter 8 consists of an optical shielding part 12 and a light transmitting part 13, and the optical shielding part 12 has a form of four times symmetry regarding an optical axis 22. When the reticle 5 is irradiated with the light from a point light source 14, light flux interference is caused on a wafer 7 by four diffraction light beams, and light intensity distribution is similar to the distribution obtained by two times exposure of the phase shift mask. Hence it is unnecessary that the exposure is again performed by changing masks, and high resolution exposure is possible.
Abstract:
PROBLEM TO BE SOLVED: To provide a semiconductor device which comes with a group of wiring patterns including multiple wiring patterns effective for high integration.SOLUTION: There is included a group of wiring patterns including N (N≥3) lengths of wiring patterns used for the same wiring purpose. The N lengths of wiring patterns respectively include a connection region for electrically connecting to wiring patterns in a wiring group in another layer. The N lengths of wiring patterns include a wiring pattern N1 and two or more wiring patterns Ni (i≥2) disposed in one direction differing from the longer direction of the wiring pattern N1. The two or more wiring patterns Ni are disposed at increasingly distant positions from the wiring pattern N1 as the value i increases, and they include at least one or more wiring patterns Np (2≤p
Abstract:
PROBLEM TO BE SOLVED: To excellently form a fine pattern at a close pitch almost to or below a resolution limit. SOLUTION: In a method of forming a plurality of line-and-space pattern on a base material film 1, the method includes the steps of: forming a first exposure mask having first light transparent parts formed corresponding to alternate first space parts; forming a second exposure mask having second light transparent parts formed corresponding to the remaining first space parts; transferring a first exposure mask pattern and a second exposure mask pattern to a resist film formed on the base material film 1; forming a resist pattern by developing the resist film; burying a framing material film in the second space parts of the resist pattern; forming a bridge layer as a coating layer of the second line part through a heat treatment; and forming the line-and-space pattern by removing a non-bridge part of the framing material. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To form a pattern within limits of lithography by effectively using a side wall machining process even for various fine hole patterns having random patterns in addition to periodic patterns. SOLUTION: The method of manufacturing a semiconductor device using the side wall machining process comprises a step of forming a first sacrificial film which has a period twice as long as that of a desired sacrificial film pattern, and whose line consists of a line and a space thinner than a space on a processed film 11; forming a second sacrificial film 15 on a flank part of the first sacrificial film, and then removing the first sacrificial film; then forming a resist pattern 16 for processed film on the processed film 11 and second sacrificial film 15; and selectively etching the processed film 11 by using the resist pattern 16 and second sacrificial film 15 as a mask to form a hole pattern. COPYRIGHT: (C)2007,JPO&INPIT