Patents Examined by Deoram Persaud
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Patent number: 11977332Abstract: A substrate treating apparatus and a substrate treating method are provided. The substrate treating apparatus includes a first process chamber to apply an organic solvent to a substrate applied with a developer and introduced, and a second process chamber to treat the substrate applied with the organic solvent and introduced, through a supercritical fluid.Type: GrantFiled: September 11, 2020Date of Patent: May 7, 2024Assignees: SEMES CO., LTD., Research & Business Foundation SUNGKYUNKWAN UNIVERSITYInventors: Hae-Won Choi, Yerim Yeon, Anton Koriakin, Kihoon Choi, Youngran Ko, Jeong Ho Cho, Hyungseok Kang, Hong Gi Min
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Patent number: 11977246Abstract: A method of forming patterned features on a substrate is provided. The method includes positioning a plurality of masks arranged in a mask layout over a substrate. The substrate is positioned in a first plane and the plurality of masks are positioned in a second plane, the plurality of masks in the mask layout have edges that each extend parallel to the first plane and parallel or perpendicular to an alignment feature on the substrate, the substrate includes a plurality of areas configured to be patterned by energy directed through the masks arranged in the mask layout. The method further includes directing energy towards the plurality of areas through the plurality of masks arranged in the mask layout over the substrate to form a plurality of patterned features in each of the plurality of areas.Type: GrantFiled: March 13, 2023Date of Patent: May 7, 2024Assignee: Applied Materials, Inc.Inventors: Yongan Xu, Rutger Meyer Timmerman Thijssen, Jinrui Guo, Ludovic Godet
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Patent number: 11977334Abstract: A method for determining a wavefront parameter of a patterning process. The method includes obtaining a reference performance (e.g., a contour, EPE, CD) of a reference apparatus (e.g., a scanner), a lens model for a patterning apparatus configured to convert a wavefront parameter of a wavefront to actuator movement, and a lens fingerprint of a tuning apparatus (e.g., a to-be-matched scanner). Further, the method involves determining the wavefront parameter (e.g., a wavefront parameter such as tilt, offset, etc.) based on the lens fingerprint of the tuning apparatus, the lens model, and a cost function, wherein the cost function is a difference between the reference performance and a tuning apparatus performance.Type: GrantFiled: December 28, 2022Date of Patent: May 7, 2024Assignee: ASML NETHERLANDS B.V.Inventors: Duan-Fu Stephen Hsu, Christoph Rene Konrad Cebulla Hennerkes, Rafael C. Howell, Zhan Shi, Xiaoyang Jason Li, Frank Staals
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Patent number: 11977339Abstract: A lithography system is provided with: a measurement device measuring position information of marks on a substrate held in a first stage; and an exposure apparatus on a second stage, the substrate for which the position information measurement for the marks has been completed, performs alignment measurement to measure position information for part of marks selected from among the marks on the substrate, and performs exposure. The measurement device measures position information of marks on the substrate to obtain higher-degree components of correction amounts of an arrangement of divided areas, and the exposure apparatus measures position information of a small number of marks on the substrate to obtain lower-degree components of the correction amounts of the arrangement of the divided areas and exposes the plurality of divided areas while controlling the position of the substrate by using the obtained lower-degree components and the higher-degree components obtained by the measurement device.Type: GrantFiled: June 29, 2022Date of Patent: May 7, 2024Assignee: NIKON CORPORATIONInventor: Yuichi Shibazaki
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Patent number: 11953837Abstract: The present invention provides a testing substrate (W) for estimating stress in production substrates due to a substrate support, said testing substrate having a support surface (SS) divided into predefined portions, wherein the predefined portions comprise at least one first portion (1) having a first coefficient of friction being substantially uniform across the at least one first portion, and at least one second portion (2) having a second coefficient of friction being substantially uniform across the at least one second portion, wherein the second coefficient of friction is different to the first coefficient of friction. The present invention also provides a method for estimating stress in a substrate due to a substrate support and a system for making such an estimation.Type: GrantFiled: November 5, 2019Date of Patent: April 9, 2024Assignee: ASML Netherlands B.V.Inventors: Thomas Poiesz, Michel Ben Isel Habets, Abraham Alexander Soethoudt, Herman Marquart
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Patent number: 11947241Abstract: The technology disclosed uses extreme beam shaping to increase the amount of energy projected through an AOD. First and second expanders and are described that are positioned before and after the AOD. In one implementation, the optical path shapes energy from a source, such as a Gaussian laser spot, deflects it, then reshapes it into a writing spot. In another implementation for image capture, rather than projection system, the disclosed optics reshape a reading spot from an imaged surface to a high-aspect ratio beam at an AOD exit, subject to deflection by the AOD. The optics reshape the radiation relayed by the high-aspect ratio beam through the AOD to a detector. Since light can travel in both directions through an optical system, the details described in terms of projecting a writing spot onto a radiation sensitive surface also apply to metrology sweeping a reading spot over an imaged surface.Type: GrantFiled: January 20, 2020Date of Patent: April 2, 2024Assignee: Mycronic ABInventor: Andrzej Karawajczyk
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Patent number: 11947267Abstract: A method including calculating, using an objective function, which includes a regression model used to estimate an array of a plurality of regions on a substrate and a regularization term used to limit a value of a coefficient of the regression model, a value of each of a plurality of coefficients included in the regression model, with which the objective function becomes not more than a reference value, extracting, based on the calculated values, the coefficient having the value not less than a threshold value from the plurality of coefficients, and obtaining, using a regression model including only the extracted coefficient, an array of a plurality of regions on a substrate.Type: GrantFiled: September 26, 2022Date of Patent: April 2, 2024Assignee: CANON KABUSHIKI KAISHAInventors: Atsushi Shigenobu, Fuma Kizu
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Patent number: 11947265Abstract: An optical diffraction component has a periodic grating structure profile. The diffraction structure levels are arranged so that a wavelength range around two different target wavelengths diffracted by the grating structure profile has radiation components with three different phases that interfere destructively with one another. Diffraction structure levels predefine a topography of a grating period of the grating structure profile that is repeated regularly along a period running direction. These include a neutral diffraction structure level, a positive diffraction structure level raised relative thereto, and a negative diffraction structure level lowered relative thereto. The neutral diffraction structure level has an extent along the period running direction which is less than 50% of the extent of the grating period. A difference between the two target wavelengths is less than 50%.Type: GrantFiled: February 17, 2022Date of Patent: April 2, 2024Assignee: Carl Zeiss SMT GmbHInventor: Heiko Feldmann
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Patent number: 11940738Abstract: A photolithography system utilizes tin droplets to generate extreme ultraviolet radiation for photolithography. The photolithography system irradiates the droplets with a laser. The droplets become energized and emit extreme ultraviolet radiation. A collector reflects the extreme ultraviolet radiation toward a photolithography target. The photolithography system reduces splashback of the tin droplets onto the receiver by generating a net electric charge within the droplets using a charge electrode and decelerating the droplets by applying an electric field with a counter electrode.Type: GrantFiled: June 15, 2020Date of Patent: March 26, 2024Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Po-Ming Shih, Chi-Hung Liao
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Patent number: 11927889Abstract: An apparatus includes a first substrate, a second substrate, and an intermediate layer disposed between the first and second substrates. The intermediate layer is configured to be a first point of failure or breakage of the apparatus under an applied force. The apparatus can further include a bonding layer disposed between the first and second substrates. The bonding layer is configured to bond the intermediate layer to the first and second substrates. The apparatus can further include a fastener coupled to the first and second substrates. The fastener is configured to secure the intermediate layer to the first and second substrates. The intermediate layer can include a coating applied to the first substrate or the second substrate. The apparatus can further include a second intermediate layer disposed between the first substrate and the fastener or the second substrate and the fastener.Type: GrantFiled: January 27, 2020Date of Patent: March 12, 2024Assignee: ASML Holding N.V.Inventors: Kushal Sandeep Doshi, Eric Justin Monkman, John Robert Burroughs, Sudhanshu Nahata, Stefan Luka Colton
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Patent number: 11921434Abstract: An apparatus includes a vacuum chamber, a reflective optical element arranged in the vacuum chamber and configured to reflect an extreme ultra-violet (EUV) light, and a cleaning module positioned in the vacuum chamber. the cleaning module is operable to provide a mitigation gas flowing towards the reflective optical element and provide a hydrogen-containing gas flowing towards the reflective optical element. The mitigation gas mitigates, by chemical reaction, contamination of the reflective optical element.Type: GrantFiled: December 15, 2022Date of Patent: March 5, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Shu-Hao Chang, Norman Chen, Jeng-Horng Chen, Kuo-Chang Kau, Ming-Chin Chien, Shang-Chieh Chien, Anthony Yen, Kevin Huang
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Patent number: 11923187Abstract: A method includes transferring a wafer to a position over a wafer chuck; lifting a lifting pin through the wafer chuck to a first position to support the wafer; holding the wafer on the lifting pin using a negative pressure source in gaseous communication with an inner gas passage of the lifting pin; introducing a gas to a region between the wafer and the wafer chuck through an outer gas passage of the lifting pin, wherein in a top view of the lifting pin, the inner gas passage has a circular profile, while the outer gas passage has a ring-shape profile; and lowering the lifting to dispose the wafer over the wafer chuck.Type: GrantFiled: December 15, 2022Date of Patent: March 5, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Min-Cheng Wu, Chi-Hung Liao
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Patent number: 11921423Abstract: An imprint apparatus executes imprint processing of curing imprint material in a state in which the imprint material supplied onto a substrate and a mold are in contact with each other. The imprint apparatus includes a modulator configured to modulate incident light, a first optical system configured to guide first light from a first light source to the modulator, and second light from a second light source that has a wavelength different from that of the first light to the modulator, and a second optical system configured to guide modulated light modulated by the modulator to the substrate.Type: GrantFiled: December 7, 2021Date of Patent: March 5, 2024Assignee: Canon Kabushiki KaishaInventors: Kenichi Kobayashi, Tatsuya Arakawa
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Patent number: 11921436Abstract: A lithography system is provided with: a measurement device measuring position information of marks on a substrate held in a first stage; and an exposure apparatus on a second stage, the substrate for which the position information measurement for the marks has been completed, performs alignment measurement to measure position information for part of marks selected from among the marks on the substrate, and performs exposure. The measurement device measures position information of marks on the substrate to obtain higher-degree components of correction amounts of an arrangement of divided areas, and the exposure apparatus measures position information of a small number of marks on the substrate to obtain lower-degree components of the correction amounts of the arrangement of the divided areas and exposes the plurality of divided areas while controlling the position of the substrate by using the obtained lower-degree components and the higher-degree components obtained by the measurement device.Type: GrantFiled: June 29, 2022Date of Patent: March 5, 2024Assignee: NIKON CORPORATIONInventor: Yuichi Shibazaki
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Patent number: 11906906Abstract: Disclosed is a method of metrology comprising using measurement illumination to measure a target, said measurement illumination comprising a plurality of illumination conditions. The method comprises performing a first measurement capture with a first subset of said plurality of illumination conditions, e.g., each comprising a positive weighting, to obtain a first parameter value and performing a second measurement capture with a second subset of said plurality of illumination conditions, e.g., each comprising a negative weighting, to obtain a second parameter value. An optimized parameter value is determined as a weighted combination of at least the first parameter value and the second parameter value.Type: GrantFiled: December 29, 2021Date of Patent: February 20, 2024Assignee: ASML Netherlands B.V.Inventors: Sebastianus Adrianus Goorden, Simon Reinald Huisman, Arjan Johannes Anton Beukman
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Patent number: 11906902Abstract: Example implementations described herein include a laser source and associated methods of operation that can balance or reduce uneven beam profile problem and even improve plasma heating efficiency to enhance conversion efficiency and intensity for extreme ultraviolet radiation generation. The laser source described herein generates an auxiliary laser beam to augment a pre-pulse laser beam and/or a main-pulse laser beam, such that uneven beam profiles may be corrected and/or compensated. This may improve an intensity of the laser source and also improve an energy distribution from the laser source to a droplet of a target material, effective to increase an overall operating efficiency of the laser source.Type: GrantFiled: March 21, 2022Date of Patent: February 20, 2024Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Tai-Yu Chen, Shang-Chieh Chien, Sheng-Kang Yu, Li-Jui Chen, Heng-Hsin Liu
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Patent number: 11899181Abstract: Provided a lithography projection objective includes: first lens group, second lens group, third lens group, fourth lens group, and fifth lens group, wherein first lens group, second lens group, third lens group, fourth lens group, and fifth lens group are sequentially arranged along an optical axis; first lens group and third lens group each has negative optical power, second lens group and fourth lens group each has positive optical power, fifth lens group has optical power of 0, sum optical power of first lens group, second lens group, third lens group, fourth lens group, and fifth lens group is 0; lithography projection objective further includes diaphragm; and first lens group, third lens group, and fourth lens group each comprises aspheric lenses, one aspheric lens thereof includes an aspherical surface; and a number of aspheric lenses is greater than or equal to 4 and less than or equal to 8.Type: GrantFiled: December 30, 2019Date of Patent: February 13, 2024Assignee: SHANGHAI MICRO ELECTRONICS EQUIPMENT (GROUP) CO., LTD.Inventor: Yinzhang Guo
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Patent number: 11899377Abstract: A semiconductor processing method includes operations. An exposure process is performed on a semiconductor workpiece and includes selecting a target state of a reticle based on given data and regulating the reticle to reach the target state. A development process is performed on the semiconductor workpiece.Type: GrantFiled: February 7, 2022Date of Patent: February 13, 2024Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Yueh-Lin Yang, Chi-Hung Liao
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Patent number: 11892776Abstract: Apparatuses and techniques for suppressing a zeroth order portion of a configured radiation beam. In some embodiments, an extreme ultraviolet (EUV) lithographic apparatus for forming an image on a substrate by use of an EUV radiation beam that is configured by a patterning device comprising a pattern of reflective regions and partially reflective regions, wherein the partially reflective regions are configured to suppress and apply a phase shift to a portion of the EUV radiation beam, may include a projection system. The projection system may be configured to suppress a zeroth order portion of a configured EUV radiation beam, and direct an unsuppressed portion of a configured EUV radiation beam towards a substrate to form an image on the substrate.Type: GrantFiled: December 12, 2019Date of Patent: February 6, 2024Assignee: ASML NETHERLANDS B.V.Inventors: Johannes Jacobus Matheus Baselmans, Duan-Fu Stephen Hsu, Willem Jan Bouman, Frank Jan Timmermans, Marie-claire Van Lare
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Patent number: 11892778Abstract: Embodiments of the present disclosure provide a device for adjusting a wafer, a reaction chamber, and a method for adjusting a wafer. The device for adjusting a wafer includes: a lifting module, the lifting module including a first carrier surface configured to carry a wafer, and the first carrier surface ascending to a preset highest position or descending to a preset lowest position relative to a reference surface; a carrier module, the carrier module including a second carrier surface, a position of the second carrier surface being higher than the preset lowest position and being lower than the preset highest position, and the second carrier surface being configured to receive and carry the wafer carried on the first carrier surface; and a suction module, the suction module including a first suction opening facing the wafer and surrounded by the second carrier surface.Type: GrantFiled: January 24, 2022Date of Patent: February 6, 2024Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.Inventors: Congjun Wu, Xing Zhang