Abstract:
PROBLEM TO BE SOLVED: To provide a method of exposure to an uniform radiation dose in a lithographic apparatus using a programmable array.SOLUTION: The method comprises: when projecting a patterned beam of radiation, which was patterned using individually controllable elements, onto a target portion of a substrate, (a) ordinarily controlling the elements, such that each pixel delivers a radiation dose no greater than a predetermined normal maximum dose to the target portion in an exposure step; and (b) exceptionally controlling the elements, such that at least one selected pixel delivers an increased radiation dose, greater than the normal maximum dose. The increased dose may be delivered to compensate for the effect of a defective element at a known position in the array on a pixel adjacent to a selected pixel. Furthermore, it may compensate for underexposure of the target portion at the location of the selected pixel resulting from exposure of that location to a pixel affected by a known defective element.
Abstract:
PROBLEM TO BE SOLVED: To provide a method for performing exposure in even radiation in a lithographic apparatus using a programmable array. SOLUTION: If a patterned beam of radiation which was patterned using an individually controllable elements is projected onto a target portion of a substrate, (a) each pixel ordinarily controls elements so as to deliver a radiation dose no greater than a predetermined normal maximum dose to the target portion in an exposure step, and (b) at least one selected pixel exceptionally controls the elements so as to deliver an increased radiation dose greater than the normal maximum dose. The increased dose may be delivered to compensate for the effect of a defective pixel at a known position in the array on a pixel adjacent a selected pixel. Further, it may compensate for underexposure of the target portion at the location of a selected pixel resulting from exposure of that location to a pixel affected by a known defective element. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a system and a method for directing a radiation beam to illuminate a patterning array in a direction other than a vertical direction of individually controllable elements used for patterning the radiation beam. SOLUTION: In a method of manufacturing a device, the individually controllable elements can change the telecentricity of a radiation beam PB. Projection of the radiation beam PB onto the individually controllable elements can be performed by using a concave mirror 21 or a folding mirror placed in an object field of the individually controllable elements. Alternatively, the individually controllable elements can change the optical axis of the radiation beam. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a lithography apparatus comprising an illumination system, a patterning system, a projection system, and a combining system. SOLUTION: The illumination system supplies beams of radiation. The pattern forming system forms patterns in the beams. The patterning system comprises arrays of at least two components which are structured to be illuminated by a corresponding part of the beams and are individually controllable, with each array forming patterns in the corresponding part of the beams. The combination system combines patterned parts into the patterned beam. The projection system projects the patterned beam onto a target part of a substrate. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method of performing exposure in even radiation in a lithographic device using a programmable array. SOLUTION: If a pattern forming beam of radiation where a pattern is formed by using individually controllable elements is projected onto the target portion of a substrate, (a) each pixel controls elements as usual so as to send the radiation not exceeding a predetermined standard maximum radiation to the targeted portion in an exposure step, and (b) at least one selected pixel exceptionally controls the elements so as to send an increased radiation more than the standard maximum radiation. The increased radiation is sent so as to compensate an effect that affects a pixel adjacent to the pixel where a defective element is selected at the existing position of an array. Further, the pixel that is affected by the existing defective element compensates the shortage of exposure on the targeted portion at the position of the selected pixel generated by an exposure at the position. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a lithographic device and a device manufacturing method utilizing multiple die designs on a substrate. SOLUTION: The apparatus is equipped with a first data buffer 10 storing pattern data corresponding to a pattern to be exposed and a second data buffer 12 storing pattern variation data corresponding to at least one change to a part of the pattern, wherein at least one variation of the pattern is transferred by exposure on one of the areas on a substrate by using pattern variation data. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a system and a method which improves an efficiency of a mask-less lithography system, and improves a throughput of the system. SOLUTION: A projection system PS has a plurality of elements 11, 21, 12, and moveable lenses which can be arranged inside or outside of a radiation beam, and the radiation beam can be projected with a plurality of magnifications. By changing the magnification of the projection system an area of a substrate exposed per pixel can be adjusted, and the throughput of the system is optimized. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To suppress to minimum an influence on an image forming performance due to heat generation by controlling the heat generation of array of an individually controllable component. SOLUTION: According to the present invention, in order to maintain the temperature of array, a control signal is inputted in an array when the array is not used for pattern-forming a projection beam. Also, in order to maintain the temperature of the array, a heat element is provided, a heat reservoir is provided, or a cooling element is provided for lowering the temperature of the array during its use. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide an optical patterning device and its method that improves luminance and phase modulation characteristics of an individually controllable element array. SOLUTION: A light patterning system comprises an illumination system that supplies a beam of radiation having a certain wavelength λ. An array of reflective pixels patterns the beam, wherein the array includes pixels having at least a first tilting mirror that is logically coupled to a second tilting mirror. In an embodiment, the first and second tilting mirrors are (i) substantially adjacent to each other, and (ii) offset in height from each other by a first mirror displacement. A projection system is included that projects the patterned beam onto a target. In alternate embodiment, the array of reflective pixels includes pixels having first through fourth tilting mirrors that are logically coupled to each other. The first through fourth tilting mirrors are (i) respectively offset in height from a reference plane by first through fourth mirror displacements, and (ii) are respectively arranged clockwise in a substantially square pattern. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a system and a method used to direct a radiation beam to illuminate non-perpendicularly a patterning array of individually controllable elements used for patterning the radiation beam. SOLUTION: The individually controllable elements can change a telecentricity of the radiation beam. Projection of the radiation beam onto the individually controllable elements can be by a concave mirror or use a folding mirror placed in an object field of the individually controllable elements. Alternatively, the individually controllable elements can change the optical axis of the radiation beam. COPYRIGHT: (C)2006,JPO&NCIPI