Patents Examined by Colin Kreutzer
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Patent number: 8922757Abstract: A photo-alignment apparatus is provided, which includes an exposure machine, at least one mask and a photo-alignment area. The exposure machine includes a light source, a polarization plate, and a multilayer splitter. The light source emits an unpolarized light. The polarization plate receives the unpolarized light and converts the unpolarized light into a polarized light. The multilayer splitter split the polarized light into a first light beam and a second light beam. The mask includes at least two transmission portions which allow the first and second light beams to be transmitted therethrough and be projected onto the photo-alignment area for exposure thereto.Type: GrantFiled: August 23, 2012Date of Patent: December 30, 2014Assignee: Innolux CorporationInventors: Hung-I Tseng, Ker-Yih Kao
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Patent number: 8922756Abstract: A position measurement system includes a first part and a second part for determining a position of a first member relative to a second member by providing a position signal representing a position of the first part relative to the second part, and a computational unit comprising an input terminal for receiving the position signal. The computational unit is configured to, in use, apply a conversion to the position signal to obtain a signal representing a position of the first member relative to the second member; and apply an adjustment to the conversion to at least partly compensate for a drift of the first part or the second part or both. The adjustment is based on a predetermined drift characteristic of the first part or the second part or both respectively. The predetermined drift characteristic includes one or more base shapes of the first part and/or the second part.Type: GrantFiled: August 20, 2012Date of Patent: December 30, 2014Assignee: ASML Netherlands B.V.Inventors: Willem Herman Gertruda Anna Koenen, Emiel Jozef Melanie Eussen, Engelbertus Antonius Fransiscus Van Der Pasch, Robbert Edgar Van Leeuwen, Adrianus Hendrik Koevoets
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Patent number: 8922750Abstract: In a lithographic projection system, a corrective optic in the form of one or more deformable plates is mounted within telecentric image or object space for making one-dimensional or two-dimensional adjustments to magnification. The deformable plate, which can be initially bent under the influence of a preload, contributes weak magnification power that influences the magnification of the projection system by changing the effective focal length in object or image space. An actuator adjusts the amount of curvature through which the deformable plate is bent for regulating the amount of magnification imparted by the deformable plate.Type: GrantFiled: October 20, 2010Date of Patent: December 30, 2014Assignee: Corning IncorporatedInventors: Robert D. Grejda, Paul Francis Michaloski
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Patent number: 8922752Abstract: A method for alignment processing including making a substrate 4, coated with an aligned film, closely face the photo mask 7 having a first mask pattern group having a plurality of elongated first openings formed at a fixed array pitch and a second mask pattern group provided in parallel with the first mask pattern group and having a plurality of elongated second openings formed at the same pitch as the array pitch of the first openings and moving the substrate in a direction crossing the first and second mask pattern groups, applying P polarizations with different incidence angles ? to the first and second mask pattern groups of the photo mask, and alternately forming, on the aligned film, first and second slit alignment regions in different aligned states.Type: GrantFiled: October 22, 2012Date of Patent: December 30, 2014Assignee: V Technology Co., Ltd.Inventors: Koichi Kajiyama, Toshinari Arai, Michinobu Mizumura
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Patent number: 8902407Abstract: A projection objective of a microlithographic projection exposure apparatus contains a plurality of optical elements arranged in N>?2 successive sections A1 to AN of the projection objective which are separated from one another by pupil planes or intermediate image planes. According to the invention, in order to correct a wavefront deformation, at least two optical elements each have an optically active surface locally reprocessed aspherically. A first optical element is in this case arranged in one section Aj, j=1 . . . N and a second optical element is arranged in another section Ak, k=1 . . . N, the magnitude difference |k?j| being an odd number.Type: GrantFiled: October 13, 2011Date of Patent: December 2, 2014Assignee: Carl Zeiss SMT GmbHInventors: Norbert Wabra, Robert Eder
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Patent number: 8896815Abstract: A apparatus having a projection system to project a plurality of radiation beams onto a substrate, wherein the plurality of radiation beams includes a first group of one or more radiation beams formed from radiation within a first wavelength range and a second group of one or more radiation beams formed from radiation within a second wavelength range, different from the first wavelength range. The apparatus also has a dispersion element configured such that one or more radiation beams of the first group are incident on the dispersion element at a different angle from the one or more radiation beams of the second group and such that the one or more radiation beams of the first and second group output from the dispersion element are substantially parallel.Type: GrantFiled: October 30, 2012Date of Patent: November 25, 2014Assignee: ASML Netherlands B.V.Inventor: Heine Melle Mulder
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Patent number: 8891065Abstract: A system for forming a pattern on a part comprises a chamber base, a pressure vessel and a retaining device. The retaining device is positionable between the chamber base and the pressure vessel to secure a deformable mask therebetween. The system further comprises a first pressure source, a second pressure source and a third pressure source. The first pressure source provides a negative pressure within the chamber to draw the mask towards a part installed within the chamber base. The second pressure source provides a positive pressure within the pressure vessel to direct the mask towards the part so that the mask corresponds to at least one complex non-planar surface of the part. The third pressure source provides a negative pressure within pressure vessel. An exposure source exposes the part through the mask while the mask is deformed corresponding to the at least one complex non-planar surface of the part.Type: GrantFiled: August 10, 2011Date of Patent: November 18, 2014Assignee: Battelle Memorial InstituteInventors: Eric L. Hogue, Stephen J. Krak, Timothy J. Stanfield
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Patent number: 8891054Abstract: A stage device includes a base and a stage movable portion that is movable along a surface of the base. An interferometer measures a position of the stage movable portion using measurement light. At least one of a piping element and a wiring element are connected to the stage movable portion. An auxiliary member, including a plurality of members connected with each other along an axial direction of the piping element, guides a bend of the at least one of the piping element and the wiring element. A plurality of heat insulating sheets are supported by the plurality of members of the auxiliary member. The plurality of heat insulating sheets are provided between a space through which the measurement light of the interferometer passes, and the at least one of the piping element and the wiring element.Type: GrantFiled: December 14, 2011Date of Patent: November 18, 2014Assignee: Canon Kabushiki KaishaInventors: Hitoshi Sato, Yasuhito Sasaki, Keiji Emoto
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Patent number: 8891064Abstract: When a wafer stage WST accelerates and decelerates on a base, a torque that acts on a wafer drive system including the base and the like is cancelled out by a torque that acts on the wafer drive system by driving a counter of a coutermass device along a linear guide in the Z-axis direction at a predetermined acceleration. Thereby, the torque that acts upon the wafer drive system is cancelled and the exposure apparatus can expose the wafer with good accuracy.Type: GrantFiled: March 2, 2009Date of Patent: November 18, 2014Assignee: Nikon CorporationInventor: Yuichi Shibazaki
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Patent number: 8891061Abstract: In order to determine whether an exposure apparatus is outputting the correct dose of radiation and its projection system is focusing the radiation correctly, a test pattern is used on a mask for printing a specific marker onto a substrate. This marker is then measured by an inspection apparatus, such as a scatterometer, to determine whether there are errors in focus and dose and other related properties. The test pattern is configured such that changes in focus and dose may be easily determined by measuring the properties of a pattern that is exposed using the mask. The test pattern may be a 2D pattern where physical or geometric properties, e.g., pitch, are different in each of the two dimensions. The test pattern may also be a one-dimensional pattern made up of an array of structures in one dimension, the structures being made up of at least one substructure, the substructures reacting differently to focus and dose and giving rise to an exposed pattern from which focus and dose may be determined.Type: GrantFiled: October 2, 2009Date of Patent: November 18, 2014Assignee: ASML Netherlands B.V.Inventors: Christian Marinus Leewis, Hugo Augustinus Joseph Cramer, Marcus Adrianus Van De Kerkhof, Johannes Anna Quaedackers, Christine Corinne Mattheus
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Patent number: 8891063Abstract: A lithographic apparatus comprises an object table for receiving an object, an actuator for moving the object table and a handler for transferring the object to or from the object table. The apparatus is provided with a controller operable connected with the actuator and/or the handler. The controller is programmed and/or arranged to drive the actuator and the handler so as to provide that the object table and the handler substantially follow each other in a direction perpendicular to a transfer direction during transfer in the transfer direction of the object to or from the object table.Type: GrantFiled: December 22, 2011Date of Patent: November 18, 2014Assignee: ASML Netherlands B.V.Inventors: Marcus Joseph Elisabeth Godfried Breukers, Marcel François Heertjes, Niels Johannes Maria Bosch
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Patent number: 8891062Abstract: An illumination optical system which illuminates an illumination surface with light from a light source, includes a divider which divides light from the light source to generate a plurality of light beams, a first reflective integrator which uniformizes light intensity distributions of the plurality of light beams generated by the divider, a condenser which condenses the light beam from the first reflective integrator, a second reflective integrator which receives the light beam from the condenser and illuminates the illumination surface, and an aperture stop arranged between the second reflective integrator and the illumination surface, wherein the divider generates the plurality of light beams so that light beams each having a cross-sectional shape different from a cross-sectional shape of the light provided from the light source to the divider enter a plane on which the aperture stop is arranged.Type: GrantFiled: December 23, 2011Date of Patent: November 18, 2014Assignee: Canon Kabushiki KaishaInventor: Toshihiko Tsuji
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Patent number: 8885144Abstract: An illumination system having an array of individually controllable optical elements is disclosed, wherein each element is moveable between a plurality of orientations which may be selected in order to form desired illumination modes. The illumination system includes a controller to control orientation of one or more of the elements, the controller configured to apply force to the one or more elements which at least partially compensates for force applied to the one or more elements by a burst of radiation incident upon the one or more elements.Type: GrantFiled: May 24, 2011Date of Patent: November 11, 2014Assignee: ASML Netherlands B.V.Inventors: Bert Jan Claessens, Heine Melle Mulder, Paul Van Der Veen, Wilfred Edward Endendijk, Willem Jan Bouman, Bert Pieter Van Drieënhuizen, Jozef Ferdinand Dymphna Verbeeck, Marc Hendricus Margaretha Dassen, Thijs Johan Henry Hollink
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Patent number: 8885143Abstract: A projection exposure apparatus for microlithography for the production of semiconductor components includes at least one optical assembly with at least one optical element which can be actuated in a mechanically controlled manner is mounted in a structure. For carrying out the mechanical actuation, a control signal transmission device and/or an energy transmission device are/is provided, which introduce(s) no parasitic mechanical effects into the optical assembly at least during specific operating states of the projection exposure apparatus.Type: GrantFiled: March 24, 2011Date of Patent: November 11, 2014Assignee: Carl Zeiss SMT GmbHInventors: Juergen Fischer, Armin Schoeppach, Matthias Orth, Norbert Muehlberger, Thorsten Rassel, Armin Werber, Juergen Huber
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Patent number: 8873021Abstract: A debris mitigation system for use in a radiation unit for EUV radiation and/or X-rays, for example, includes a foil trap having several passages allowing a straight passage of radiation, and one or several feed pipes for gas supply of buffer gas to the foil trap. The foil trap has an interior space extending over several of the passages, where the feed pipes open into the interior space.Type: GrantFiled: June 6, 2006Date of Patent: October 28, 2014Assignee: Koninklijke Philips N.V.Inventors: Gunther Hans Derra, Thomas Krucken
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Patent number: 8873025Abstract: A collector system for extreme ultraviolet (EUV) radiation includes a collector mirror and a radiation-collection enhancement device (RCED) arranged adjacent an aperture member of an illuminator. The collector mirror directs EUV radiation from an EUV radiation source towards the aperture member. The RCED redirects a portion of the EUV radiation that would not otherwise pass through the aperture of the aperture member or that would not have an optimum angular distribution, to pass through the aperture and to have an improved angular distribution better suited to input specifications of an illuminator. This provides the illuminator with greater amount of useable EUV radiation than would otherwise be available from the collector mirror alone, thereby enhancing the performing of an EUV lithography system that uses such a collector system with a RCED.Type: GrantFiled: October 17, 2013Date of Patent: October 28, 2014Assignee: Media Lario S.r.l.Inventors: Natale M. Ceglio, Gopal Vasudevan
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Patent number: 8810766Abstract: A method and a device are described for producing copies/replica of a volume reflection hologram wherein a holographic film (4) is guided over a drum with polygon cross-section having at least two planar (polygon) master surfaces (3) to each of which at least one master (7) is attached in the circumferential direction, where the film is brought into contact with at least one master hologram (7) and its entire surface is exposed to laser. It is essential that to at least one of the master surfaces (5) with the film guided over it, a laser exposure unit (22) is assigned which allows full exposure of the respective master surface to parallel, coherent laser beams (6), and that the at least one exposure unit (22) follows section wise the rotational movement of the drum by a splitting angle with equal velocity and exposes the corresponding master surface (5) to then be reset quickly again and perform the same angular displacement and exposure together with the next master surface.Type: GrantFiled: April 7, 2011Date of Patent: August 19, 2014Assignee: Hologram Industries Research GmbHInventor: Günther Dausmann
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Patent number: 8786832Abstract: A lithographic apparatus is described that comprises a support structure to hold an object. The object may be a patterning device or a substrate to be exposed. The support structure comprises a chuck, on which the object is supported, and an array of shear-compliant elongated elements normal to the chuck and the stage, such that first ends of the elongated elements contact a surface of the chuck and second ends of the elongated elements contact a stage. Through using the array of elongated elements, a transfer of stress between the stage and the chuck is substantially uniform, resulting in minimization of slippage of the object relative to the surface of the chuck during a deformation of the chuck due to the stress.Type: GrantFiled: July 10, 2013Date of Patent: July 22, 2014Assignee: ASML Holding N.V.Inventors: Samir A. Nayfeh, Mark Edd Williams, Justin Matthew Verdirame
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Patent number: 8786826Abstract: The invention relates to arrangements for actuating an element in a microlithographic projection exposure apparatus. In accordance with one aspect, an arrangement for actuating an element in a microlithographic projection exposure apparatus comprises a first number (nR) of degrees of freedom, wherein an adjustable force can be transmitted to the optical element in each of the degrees of freedom, and a second number (nA) of actuators, which are coupled to the optical element in each case via a mechanical coupling for the purpose of transmitting force to the optical element, wherein the second number (nA) is greater than the first number (nR). In accordance with one aspect, at least one of the ac-tuators is arranged in a node of at least one natural vibration mode of the optical element.Type: GrantFiled: January 17, 2014Date of Patent: July 22, 2014Assignee: Carl Zeiss SMT GmbHInventors: Sascha Bleidistel, Ulrich Schoenhoff, Juergen Fischer
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Patent number: 8780324Abstract: A fluid handling structure for a lithographic apparatus is disclosed. The fluid handling structure has, on an undersurface, a liquid supply opening or a plurality of liquid supply openings and a liquid extraction opening or a plurality of liquid extraction openings arranged such that, in use, liquid is provided on and removed from the undersurface of the fluid handling structure.Type: GrantFiled: May 9, 2011Date of Patent: July 15, 2014Assignee: ASML Netherlands B.V.Inventors: Rogier Hendrikus Magdalena Cortie, Michel Riepen, Rob Cornelissen