Abstract:
PROBLEM TO BE SOLVED: To provide a system for producing a radiation beam having better pulse-to-pulse uniformity for short wavelengths. SOLUTION: A system is used to perform fast and slow applications, for example, fast application can be pulse trimming. The system includes a radiation source, an electro-optical modulator, and a beam splitter. The radiation source is configured to generate a polarized beam of radiation. The electro-optical modulator, formed of crystalline quartz, is configured to modulate the beam of radiation. The beam splitter is configured to direct a first portion of the beam to a beam dump and to form an output beam from a second portion of the beam. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a radiation system and a lithography system which can substantially eliminate interference or speckle patterns. SOLUTION: A coherent beam 506 is reflected by a rotating optical element 502 to form a second coherent beam 508. The coherent beam 508 is reflected by an angular distribution changing element 504 to form an incoherent beam 510. The incoherent beam 510 is reflected by the rotating optical element 502 to form a second incoherent beam 512. The incoherent beam 512 is received by an illuminator IL. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an optical apparatus that gives uniform intensity and other characteristics over the all beams when a plurality of radiation beams are projected onto a substrate. SOLUTION: The optical apparatus is provided comprising a homogenizer and a coherence remover so as to substantially homogenize and remove at least some coherence from a beam of radiation. The homogenizer is configured to convert a beam of radiation into a plurality of beams of radiation, and the coherence remover is configured such that each of the beams of radiation passes through a different channel of the coherence remover. Otherwise, the coherence remover converts a beam of radiation into a plurality of beams, and the plurality of beams of radiation are transferred to the homogenizer. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a device and a method for compensating the motion of a substrate in a lithography device in one radiation pulse. SOLUTION: Though the image of a structure PPM for patterning which is programmable is projected on a substrate table moving at a constant speed, defocus occurs when the motion of a substrate in a lithography device in a radiation pulse is large. Accordingly, a radiation beam and the substrate are substantively synchronized by arranging a mirror 10 in the vicinity of the pupil of a projection system PL or on its coupling surface and rotating the mirror 10 using an actuator 12. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a system and a method for ensuring an easier use of an array of individually controllable elements in a lithographic apparatus.SOLUTION: The present invention relates to an apparatus and a method used to calibrate an array of individually controllable elements in a lithographic apparatus. A calibration unit can switch between a first state in which modulated radiation beam enters into a projection system for projecting the modulated radiation beam onto a substrate, and a second state in which a portion of the modulated radiation beam is inspected by the calibration unit. The calibration unit generates or updates calibration data, based on inspection result of the modulated radiation beam. An array controller uses the calibration data to provide control signals to elements of the array of individually controllable elements. These elements are configured to respond to the control signals.
Abstract:
PROBLEM TO BE SOLVED: To homogenize intensity characteristics or the like even when beams of light are individually patterned and are projected on a substrate in using an illumination source for generating a plurality of beams of light. SOLUTION: The optical apparatus includes a homogenizer 100 and a coherence remover 102 to substantially homogenize and remove at least some coherence from the beam of light. The homogenizer is structured to convert the beam of light into a plurality of beams of light. The coherence remover is so structured that respective beams of light pass through different channels of the coherence remover. In other embodiment, the coherence remover converts the beam of light into a plurality of beams of light and the plurality of beams of light are delivered to the homogenizer. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a system and a method for more easily using an array of individually controllable elements in a lithographic apparatus. SOLUTION: The present invention relates to an apparatus and a method used to calibrate an array of individually controllable elements within a lithographic apparatus. A calibration unit can switch between a first state in which modulated beam of radiation passes into a projection system for projecting the modulated beam of radiation onto a substrate, and a second state in which a portion of the modulated beam of radiation is inspected by the calibration unit. The calibration unit generates calibration data, or alternatively, updates calibration data, based on the inspection of the modulated beam of radiation. An array controller uses the calibration data to provide control signals to elements of an array of individually controllable elements which are subsequently configured in response to the control signals. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a radiation beam conditioning system comprising at least three optical paths in which the radiation is conditioned.SOLUTION: A radiation beam conditioning system for conditioning a pulsed beam of radiation comprises: a radiation beam divider that divides the pulsed beam of radiation at least along first, second and third optical paths; a radiation beam combiner that re-combines pulses of radiation at least from the first, second and third optical paths to form a single output pulsed beam of radiation; and a radiation pulse trimmer that is configured in association with pulses of radiation that propagates along the first optical path. The radiation pulse trimmer trims pulses of radiation within the first optical path, such that the total energy amount of the single output pulsed beam of radiation is substantially a predetermined level. The optical path lengths of the first, second and third optical paths are different between the radiation beam divider and the radiation beam combiner.
Abstract:
PROBLEM TO BE SOLVED: To provide a system and a method that increase light intensity efficiency and contrast. SOLUTION: A system and method utilize a lithographic apparatus comprising an illumination system 102, an individually controllable element array 104, and a projection system 108. The illumination system 102 conditions a radiation beam. The individually controllable element array 104 modulates the beam. At least one group of elements in the individually controllable element array 104 is tilted to the same tilt direction at least with the same tilt sign. For example, tilting can form one or more blazing portions (such as blazing super pixel portions) in the individually controllable element array 104. The projection system 108 projects the modulated beam onto a target portion of a substrate. The projection system 108 includes an aperture that filters out undesired diffraction orders of the modulated beam. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an imaging apparatus capable of using for the manufacture of an integrated circuit and other (semiconductor) devices as a commercially charming alternative plan instead of using a conventional lithographic projector (a method using a mask). SOLUTION: The imaging apparatus comprises a radiant ray system for supplying a projection beam of radiant ray, a supporting structure for supporting a pattern forming means effecting a pattern formation in accordance with the desired pattern, a substrate table for retaining a substrate, and a projection system for projecting a beam formed through the pattern formation on the target part of the substrate. The pattern formation means comprises a plurality of individual pattern formation subelements to produce subbeams formed through pattern formation, by using respective subelements. The imaging apparatus comprises a combining means for combining a plurality of subbeams formed through the pattern formation, to a single image formed through the pattern formation.