Abstract:
PROBLEM TO BE SOLVED: To provide a method for manufacturing a device that has corrected the distortion in formed images produced because of the use of a reflective mask having a thick absorbing layer and inclined lighting in a lithography device that uses extreme ultraviolet rays as projection beams. SOLUTION: The distortion induced by the reflective mask (MA), on the absorbing layer of which a mask pattern has been embodied, and the inclined lighting is calculated and aberration in a projection system (PL) is introduced and/or controlled in order to correct the distortion. Since this can be done by the control of the optical elements already present in the projection system (MA), there is no need to modify the device. In Zernike polynomial, it is desirable that the aberrations described above are Z2 (inclination of X), Z3 (inclination of Y), or Z7 (frame X). COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a method for producing a photolithography patterning device, and a lithography device using the method. SOLUTION: Target dimensions and orientations are defined at the stage of creating a patterning device, and the effective shadow angle of the radiation is calculated at a plurality of points. Based on this, the thickness of the absorber layer or the intensity attenuation of the absorber of the patterning device is adjusted so as to compensate the displacement and the dimension errors of the desired image. The lithography device is a projection and exposure device using the patterning device. It is equipped with a measuring device used for determining the target position of the image, and composed so that the position and the dimension errors of the target image can be compensated for, corresponding to the result of the detection by the detector. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a lithographic apparatus with an autofocus system. SOLUTION: The lithographic apparatus comprises a lighting system which supplies a radiation beam, a pattern grant equipment which gives a pattern to the cross-section of the radiation beam and forms a patterned radiation beam, a substrate table configured to hold a substrate, and a projection system that includes a plurality of mirrors arranged to project the patterned radiation beam onto a target portion of the substrate. The lithographic apparatus further includes the autofocus system having (a) a light source, (b) a position sensitive detector, and (c) a light directing arrangement. The light directing arrangement directs a first portion of light from the light source to the projection system, and directs a second portion of light from the light source into the position sensitive detector. After the first portion of light has traveled through the projection system to the substrate and back through the projection system to the light directing arrangement, the first portion of light is directed to the position sensitive detector. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a lithographic apparatus and a manufacturing method of a device. SOLUTION: There is disclosed a lithographic projection apparatus for use with an immersion liquid positioned between a final element of a projection system and a substrate W. There are disclosed a lot of methods of protecting components of the projection system, a substrate table and a liquid confinement system. These methods include a step of applying a protective coating on a final element 20 of the projection system and a step of providing sacrificial bodies at an upstream side of the components. And, a two-component final optical element of CaF 2 is also disclosed. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To sufficiently irradiate a resist between elements. SOLUTION: A lithography method of irradiating a resist on a substrate in which a region between a first element located on the substrate and a second element located on the substrate is filled with the resist, the first element has a first length, a first width, and a first height, the second element has a second length, a second width, and a second height, the first height is substantially equal to the second height, the first length is substantially in parallel with the second length, and a distance between opposed side walls of the first and second elements is shorter than the wavelength of radiation used for irradiating the resist, the first and second elements determining a region extended in a first direction and filled with the resist. The method includes a step of irradiating the resist with elliptical polarization radiation that is polarized at the first height and the second height perpendicularly to the first direction and substantially perpendicularly to the first and second lengths. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a lithographic apparatus and a method of manufacturing a device. SOLUTION: A lithogrophic projection apparatus for use with an immersion liquid placed between the final element of a projection system and a substrate W is disclosed. A plurality of methods for protecting the components of the projection system, a substrate table, and a liquid confinement system are disclosed. These methods include a step of applying a protective coating on the final element 20 of the projection system and a step of providing sacrificial bodies to an upstream side of the components. Further, a final optical element composed of two components made from CaF 2 is disclosed. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a lithography device in which intensity profile of an EUV radiation ray reaching a target part of a substrate is substantially uniformed. SOLUTION: This lithography system comprises a radiation ray system providing a radiation beam, a lighting system so constituted as to adjust a condition of the radiation beam, a support so constituted as to support a patterning device providing a pattern to a cross section of a projection beam, a substrate table holding the substrate, a projection system for projecting the patterned beam to the target part of the substrate, and a transmission adapter arranged along the optical path. The radiation ray system comprises a radiation source generating the radiation beam. The intensity profile which is a function of wavelength of the radiation beam and/or patterned beam is so adjusted as to be equal to a specified intensity profile, by the transmission adapter. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a calibration apparatus and a method of calibrating a radiation sensor in a lithographic apparatus. SOLUTION: A calibration apparatus 1 is provided for calibrating a radiation sensor RS in a lithographic apparatus. The calibration apparatus includes a window 3 formed of a substantially radiation-transparent material for allowing radiation to pass therethrough to reach the radiation sensor. A first reference sensor 6 is located behind the window having an active surface abutting the window for measuring the intensity of the radiation that passes through the window. A second reference sensor 8 is located at a short distance behind the window having an active surface facing the window. The second reference sensor measures the intensity of the radiation that passes through the window, a first contamination layer 12 formed on the window, and a second contamination layer 13 formed on the active surface of the second reference sensor. The radiation sensor can be calibrated by combining measurements from the first and the second reference sensors. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a lithographic apparatus and a method of manufacturing a device. SOLUTION: There is disclosed a lithographic projection apparatus for use with an immersion liquid placed between the final element of a projection system and a substrate W. There are disclosed a plurality of methods for protecting components of the projection system, a substrate table, and a liquid confinement system are disclosed. These methods include a step of applying a protective coating on the final element 20 of the projection system and a step of providing sacrificial bodies to an upstream side of the components. Further, there is disclosed a final optical element composed of two components made from CaF 2 . COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method of manufacturing a device, which reduces adverse effects to resolution due to secondary electrons generated in a resist layer in radiation exposure. SOLUTION: By providing a conductive material 3 on an upper surface of a radiation photosensitive resist 2 and connecting the resist layer to fixed potential, electric field is applied to the resist layer. The direction of the electric field is substantially perpendicular to the surface of the resist layer. COPYRIGHT: (C)2006,JPO&NCIPI