Methods Patents (Class 355/77)
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Patent number: 10606177Abstract: There is provided a substrate processing apparatus, including: a mounting table configured to mount a substrate with a pattern mask formed on the substrate inside a process container; a depressurization mechanism configured to perform a pressure-decreasing process of depressurizing an interior of the process container to have a pressure of 1 Pa or lower; a light irradiation mechanism configured to irradiate the substrate with a vacuum ultraviolet light after the interior of the process container is depressurized so that an internal pressure of the process container reaches a pressure of 1 Pa or lower; and a controller configured to output a control signal such that an average depressurization rate inside the process container performed by the depressurization mechanism becomes 250 Pa/sec or lower while the interior of the process container is depressurized from 10,000 Pa to 1 Pa.Type: GrantFiled: July 9, 2018Date of Patent: March 31, 2020Assignee: TOKYO ELECTRON LIMITEDInventors: Tomohiro Iseki, Keiichi Tanaka
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Patent number: 10599045Abstract: According to an embodiment, focus sensitivity information in which focus sensitivity expressing a relation between an aberration correction value set in an exposure device and a best focus when a pattern is formed on a first substrate by exposure of the exposure device using the aberration correction value, and the pattern are correlated is input. Moreover, on the basis of the focus sensitivity information and a surface height difference of a second substrate, the aberration correction value in which best focuses for a pattern group to be formed on the second substrate by exposure satisfy a first condition is calculated. In addition, the second substrate is exposed by the exposure device using the aberration correction value satisfying the first condition.Type: GrantFiled: February 23, 2018Date of Patent: March 24, 2020Assignee: Toshiba Memory CorporationInventors: Yoshio Mizuta, Nobuhiro Komine
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Patent number: 10558116Abstract: A synthetic quartz glass substrate is prepared by furnishing a synthetic quartz glass block, coating two opposite surfaces of the block with a liquid having a transmittance of at least 99.0%/mm at the wavelength of birefringence measurement, measuring a birefringence distribution on the block by letting light enter one coated surface and exit the other coated surface, and sorting the block to an acceptable group or unacceptable group, based on the measured birefringence distribution.Type: GrantFiled: June 7, 2016Date of Patent: February 11, 2020Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Hisashi Yagi, Daijitsu Harada, Masaki Takeuchi, Kazuo Shirota, Kazuhiko Aoki
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Patent number: 10451564Abstract: A method for qualitatively detecting aberration and determine aberration types in a photolithography system is disclosed. The method includes using a digital micromirror device (DMD) pattern to project an optical signal on a reflective substrate, acquiring a return optical signal reflected from the substrate at different focus heights (ranging from above to below best focus), forming a through focus curve based off of the return optical signal at various focus heights, comparing the through focus curve to a predetermined curve—the predetermined curve being a function of focus, and determining if a lens aberration is present. By using the existing hardware of the photolithography system to determine if a lens aberration exists, costs are maintained at a minimum and the DMD pattern creates a through focus curve (TFC) image in less than five minutes allowing for quick correction.Type: GrantFiled: April 25, 2018Date of Patent: October 22, 2019Assignee: APPLIED MATERIALS, INC.Inventors: Qin Zhong, Antoine P. Manens, Hwan J. Jeong
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Patent number: 10394131Abstract: A method to improve a lithographic process of imaging a portion of a design layout onto a substrate using a lithographic projection apparatus, the method including: computing a multi-variable cost function, the multi-variable cost function being a function of a stochastic variation of a characteristic of an aerial image or a resist image, or a function of a variable that is a function of the stochastic variation or that affects the stochastic variation, the stochastic variation being a function of a plurality of design variables that represent characteristics of the lithographic process; and reconfiguring one or more of the characteristics of the lithographic process by adjusting one or more of the design variables until a certain termination condition is satisfied.Type: GrantFiled: February 9, 2016Date of Patent: August 27, 2019Assignee: ASML Netherlands B.V.Inventor: Duan-Fu Stephen Hsu
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Patent number: 10133195Abstract: An exposure apparatus exposes a substrate with illumination light via a projection optical system, and includes a frame member, a mark detection system that detects a mark of the substrate, a mask stage system having a first movable body to hold a mask, a first encoder system having first heads that each irradiate a first measurement beam to a first grating section, a substrate stage system having a second movable body to hold the substrate, a second encoder system having second heads that each irradiate a second measurement beam to a second grating section, and a controller that controls driving of the first movable body and of the second movable body, based on measurement information of the first and second encoder systems. In each of an exposure operation and a detection operation, the positional information of the second movable body is measured by the second encoder system.Type: GrantFiled: September 17, 2014Date of Patent: November 20, 2018Assignee: NIKON CORPORATIONInventor: Yuichi Shibazaki
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Patent number: 10121709Abstract: A controller includes a memory that stores a first model corresponding to a first critical dimension of a substrate processed by a substrate processing system and a second model corresponding to a second critical dimension of the substrate. The second model includes a predicted relationship between the first critical dimension and the second critical dimension. A critical dimension prediction module calculates a first prediction of the first critical dimension of the substrate using the first model, provides the first prediction of the first critical dimension as an input to the second model, and calculates and outputs a second prediction of the second critical dimension of the substrate using the second model.Type: GrantFiled: January 24, 2017Date of Patent: November 6, 2018Assignee: LAM RESEARCH CORPORATIONInventor: Ramanapathy Veerasingam
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Patent number: 10018904Abstract: An EUV mask according to an embodiment includes a substrate, a first line-shaped portion provided on the substrate, a second line-shaped portion provided on the substrate, a first sidewall disposed on a side surface of the first line-shaped portion, and a second sidewall disposed on a side surface of the second line-shaped portion. A first layer and a second layer are stacked in the first and second line-shaped portions. The first layer includes a first material. The second layer includes a second material. The first and second sidewalls include an oxide of the first material and cover a side surface of the first layer and a side surface of the second layer.Type: GrantFiled: March 14, 2016Date of Patent: July 10, 2018Assignee: Toshiba Memory CorporationInventor: Kosuke Takai
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Patent number: 9921469Abstract: The present invention provides an imprint method comprising a deformation step of deforming a pattern surface of a mold so that the mold is gradually brought into contact with the imprint material outward from a central portion of the pattern surface, an obtaining step of obtaining a shift amount indicating how much a mark on the mold shifts in a direction parallel to a substrate surface due to deformation of the pattern surface, a detection step of detecting the mark on the mold and a mark on the substrate while the pattern surface is deformed, and obtaining relative positions of the mold and the substrate from a detection result, and an alignment step of aligning the mold and the substrate using the shift amount and the relative positions while the pattern surface is deformed.Type: GrantFiled: April 21, 2014Date of Patent: March 20, 2018Assignee: CANON KABUSHIKI KAISHAInventor: Hiroshi Sato
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Patent number: 9921488Abstract: A maskless exposure device includes a stage on which a substrate is disposed, an optical head, and an optical source part. The optical head irradiates light to the substrate. The light source part provides the optical head with a light. The optical head irradiates the light, according to an average-focus distance, to the substrate. The average-focus distance is determined by averaging best-focus distances for a plurality of regions of the substrate, respectively.Type: GrantFiled: February 3, 2015Date of Patent: March 20, 2018Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jun-Ho Sim, Jung-In Park, Ki-Beom Lee, Hi-Kuk Lee, Hyun-Seok Kim, Kab-Jong Seo, Sang-Hyun Yun, Sang-Hyun Lee, Jung-Chul Heo, Jong-Joo Kim, Chang-Hoon Kim
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Patent number: 9921485Abstract: A model-based tuning method for tuning a first lithography system utilizing a reference lithography system, each of which has tunable parameters for controlling imaging performance. The method includes the steps of defining a test pattern and an imaging model; imaging the test pattern utilizing the reference lithography system and measuring the imaging results; imaging the test pattern utilizing the first lithography system and measuring the imaging results; calibrating the imaging model utilizing the imaging results corresponding to the reference lithography system, where the calibrated imaging model has a first set of parameter values; tuning the calibrated imaging model utilizing the imaging results corresponding to the first lithography system, where the tuned calibrated model has a second set of parameter values; and adjusting the parameters of the first lithography system based on a difference between the first set of parameter values and the second set of parameter values.Type: GrantFiled: October 9, 2015Date of Patent: March 20, 2018Assignee: ASML NETHERLANDS B.V.Inventors: Jun Ye, Yu Cao
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Patent number: 9891531Abstract: In corner sections of first to fourth quadrants whose origin point is a center of an upper surface of a stage, three each of two-dimensional heads are provided. The three each of two-dimensional heads include one first head and two second heads. The stage is driven, while measuring a position of the stage using three first heads that face a two-dimensional grating of a scale plate provided above the stage from the four first heads, and during the driving, difference data of measurement values of the two second heads with respect to the first head in a measurement direction are taken in for head groups to which the three first heads belong, respectively, and using the difference data, grid errors are calibrated.Type: GrantFiled: May 3, 2017Date of Patent: February 13, 2018Assignee: NIKON CORPORATIONInventor: Yuichi Shibazaki
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Patent number: 9864271Abstract: A lithographic apparatus is disclosed that has a first substrate table arranged to hold a substrate and a second substrate table arranged to hold a substrate, an imprint template holder arranged to hold an imprint template, and an imprintable medium dispenser, wherein the first substrate table is moveable between a first position located at or adjacent to the imprintable medium dispenser, and a second position located at or adjacent to the imprint template holder, and the second substrate table is moveable between the first and second positions, such that the first and second substrate tables swap positions.Type: GrantFiled: August 1, 2017Date of Patent: January 9, 2018Assignee: ASML NETHERLANDS B.V.Inventor: Klaus Simon
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Patent number: 9817392Abstract: Several embodiments of photolithography systems and associated methods of overlay error correction are disclosed herein. In one embodiment, a method for correcting overlay errors in a photolithography system includes measuring a plurality of first overlay errors that individually correspond to a microelectronic substrate in a first batch of microelectronic substrates. The method also includes determining a relationship between the first overlay errors and a first sequence of the microelectronic substrates in the first batch. The method further includes correcting a second overlay error of individual microelectronic substrates in a second batch based on a second sequence of the microelectronic substrates in the second batch and the determined relationship.Type: GrantFiled: November 19, 2015Date of Patent: November 14, 2017Assignee: Micron Technology, Inc.Inventor: Woong Jae Chung
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Patent number: 9811035Abstract: An image forming apparatus includes an image formation unit, a detection unit, a storage unit, and a control unit. When the detection unit outputs a second output value when a second recording material, which is different from a first recording material is detected, in a state where the storage unit stores a first output value output by the detection unit upon detection of the first recording material, the control unit controls an image forming condition based on at least the first output value if a differential value between the first output value and the second output value is smaller than a predetermined threshold value and controls the image forming condition based on the second output value without using the first output value if the differential value is greater than the predetermined threshold value.Type: GrantFiled: November 23, 2015Date of Patent: November 7, 2017Assignee: Canon Kabushiki KaishaInventors: Miki Naruse, Masafumi Monde, Tsutomu Ishida, Kosuke Ogino
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Patent number: 9811003Abstract: A metrology target formed by a lithographic process on a substrate includes a plurality of component gratings. Images of the target are formed using +1 and ?1 orders of radiation diffracted by the component gratings. Regions of interest (ROIs) in the detected image are identified corresponding the component gratings. Intensity values within each ROI are processed and compared between images, to obtain a measurement of asymmetry and hence overlay error. Separation zones are formed between the component gratings and design so as to provide dark regions in the image. In an embodiment, the ROIs are selected with their boundaries falling within the image regions corresponding to the separation zones. By this measure, the asymmetry measurement is made more tolerant of variations in the position of the ROI. The dark regions also assist in recognition of the target in the images.Type: GrantFiled: November 18, 2016Date of Patent: November 7, 2017Assignee: ASML Netherlands B.V.Inventors: Martin Jacobus Johan Jak, Armand Eugene Albert Koolen, Hendrik Jan Hidde Smilde
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Patent number: 9811002Abstract: A method of lithography in a lithographic apparatus configured to transfer a pattern from a patterning device onto a substrate, the method including: determining a dose sensitivity of at least part of the pattern at a plurality of values of a dose, wherein the dose sensitivity is not a monotonically increasing or monotonically decreasing function of the dose. A computer product including a processor, a memory and a storage device, wherein the storage device at least stores values of, or a function describing, a dose sensitivity of at least part of a lithographic pattern at a plurality of values of dose, wherein the dose sensitivity is not a monotonically increasing or monotonically decreasing function of the dose.Type: GrantFiled: July 1, 2014Date of Patent: November 7, 2017Assignee: ASML NETHERLANDS B.V.Inventor: Jozef Maria Finders
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Patent number: 9798050Abstract: A substrate with a multilayer reflective film capable of facilitating the discovery of contaminants, scratches and other critical defects by inhibiting the detection of pseudo defects attributable to surface roughness of a substrate or film in a defect inspection using a highly sensitive defect inspection apparatus. The substrate with a multilayer reflective film has a multilayer reflective film obtained by alternately laminating a high refractive index layer and a low refractive index layer on a main surface of a mask blank substrate used in lithography, wherein an integrated value I of the power spectrum density (PSD) at a spatial frequency of 1 ?m?1 to 10 ?m?1 of the surface of the substrate with a multilayer reflective film, obtained by measuring a region measuring 3 ?m×3 ?m with an atomic force microscope, is not more than 180×10?3 nm3, and the maximum value of the power spectrum density (PSD) at a spatial frequency of 1 ?m?1 to 10 ?m?1 is not more than 50 nm4.Type: GrantFiled: September 25, 2014Date of Patent: October 24, 2017Assignee: HOYA CORPORATIONInventors: Kazuhiro Hamamoto, Toshihiko Orihara
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Patent number: 9785094Abstract: An image forming apparatus includes a first image forming section, a second image forming section, and a transfer section. The first image forming section forms an image layer by a first developer. The second image forming section forms an auxiliary layer by a second developer. The transfer section transfers the image layer formed by the first image forming section and the auxiliary layer formed by the second image forming section sequentially to an object, as a transfer object, on which transfer is to be performed. The following expression is satisfied: 0.30?(E2/E1)?1.00, where E1 is a charge amount of the first developer, and E2 is a charge amount of the second developer.Type: GrantFiled: July 20, 2016Date of Patent: October 10, 2017Assignee: OKI DATA CORPORATIONInventor: Yuji Takino
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Patent number: 9778563Abstract: A lithographic apparatus is disclosed that has a first substrate table arranged to hold a substrate and a second substrate table arranged to hold a substrate, an imprint template holder arranged to hold an imprint template, and an imprintable medium dispenser, wherein the first substrate table is moveable between a first position located at or adjacent to the imprintable medium dispenser, and a second position located at or adjacent to the imprint template holder, and the second substrate table is moveable between the first and second positions, such that the first and second substrate tables swap positions.Type: GrantFiled: August 4, 2011Date of Patent: October 3, 2017Assignee: ASML NETHERLANDS B.V.Inventor: Klaus Simon
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Patent number: 9690216Abstract: A display manufacturing method comprises steps of: moving a first substrate and a second substrate by a conveying apparatus; and implementing a first exposure and a second exposure of the first substrate and a first exposure and a second exposure of the second substrate by at least one light emitting element when the conveying apparatus drives the first and second substrates to pass through the light source module. When the first exposures of the first and second substrates are implemented, the moving directions of the first and second substrates are opposite, or when the second exposures of the first and second substrates are implemented, the moving directions of the first and second substrates are opposite. A photo alignment process is also disclosed.Type: GrantFiled: April 7, 2016Date of Patent: June 27, 2017Assignee: INNOLUX CORPORATIONInventors: Ker-Yih Kao, Tsan-Jen Chen, Chien-Hsing Lee
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Patent number: 9678433Abstract: In corner sections of first to fourth quadrants whose origin point is a center of an upper surface of a stage, three each of two-dimensional heads are provided. The three each of two-dimensional heads include one first head and two second heads. The stage is driven, while measuring a position of the stage using three first heads that face a two-dimensional grating of a scale plate provided above the stage from the four first heads, and during the driving, difference data of measurement values of the two second heads with respect to the first head in a measurement direction are taken in for head groups to which the three first heads belong, respectively, and using the difference data, grid errors are calibrated.Type: GrantFiled: October 2, 2013Date of Patent: June 13, 2017Assignee: NIKON CORPORATIONInventor: Yuichi Shibazaki
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Patent number: 9548183Abstract: Charged particle beam writing apparatus includes a first generation unit to generate a smallest deflection region layer in three or more deflection region layers each having deflection regions of a size different from those of other deflection region layers, for each of a plurality of figure types variably shapable using first and second shaping apertures, an assignment unit to assign each of a plurality of shot figure patterns to deflection regions of the smallest deflection region layer of a corresponding one of the plurality of figure types, a correction unit to correct, by shifting the position of each smallest deflection region layer, according to a variable shaping position of each figure type, and a writing unit to write each of the plurality of shot figure patterns on a target object, in a state where the position of each smallest deflection region layer has been corrected for each figure type.Type: GrantFiled: August 14, 2014Date of Patent: January 17, 2017Assignee: NuFlare Technology, Inc.Inventor: Jun Yashima
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Patent number: 9543186Abstract: Embodiments of substrate supports are provided herein. In some embodiments, a substrate support may include a support plate having a support surface to support a substrate, a support ring to support a substrate at a perimeter of the support surface; and a plurality of first support elements disposed in the support ring, wherein an end portion of each of the first support elements is raised above an upper surface of the support ring to define a gap between the upper surface of the support ring and an imaginary plane disposed on the end portions of the plurality of first support elements.Type: GrantFiled: February 1, 2013Date of Patent: January 10, 2017Assignee: APPLIED MATERIALS, INC.Inventors: Olkan Cuvalci, Joel M. Huston, Gwo-Chuan Tzu
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Patent number: 9465302Abstract: An immersion lithographic apparatus is disclosed that includes a fluid supply system configured to supply a fluid, the fluid supply system having a chamber with a plurality of inlet holes in a first side wall and a plurality of outlet holes in a second side wall, the first side wall facing the second side wall, wherein the inlet holes direct fluid entering the chamber in a direction towards areas of the second side wall between the plurality of outlet holes.Type: GrantFiled: May 5, 2015Date of Patent: October 11, 2016Assignee: ASML NETHERLANDS B.V.Inventors: Clemens Johannes Gerardus Van Den Dungen, Nicolaas Franciscus Koppelaars, Martinus Hendrikus Antonius Leenders, Paulus Martinus Maria Liebregts, Johannes Catharinus Hubertus Mulkens, Erik Henricus Egidius Catharina Eummelen, Marcel Beckers, Richard Moerman, Cédric Désiré Grouwstra, Danny Maria Hubertus Philips, Remko Jan Peter Verhees, Pieter Mulder, Evert Van Vliet
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Patent number: 9423702Abstract: An exposure apparatus and method exposes a substrate with an energy beam via a mask, and includes a substrate stage system that drives a movable body holding the substrate to move the substrate. A measurement system has an encoder system that irradiates a grating section with a beam and measures positional information of the movable body, and an interferometer system that measures positional information of the movable body. A control system controls a movement of the movable body based on measurement information of the measurement system. The positional information used for movement control of the movable body can be switched from the positional information of one of the encoder system and the interferometer system to the positional information of the other.Type: GrantFiled: October 7, 2010Date of Patent: August 23, 2016Assignee: NIKON CORPORATIONInventor: Yuichi Shibazaki
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Patent number: 9383654Abstract: A fluid handling structure for a lithographic apparatus is disclosed. The fluid handling structure has a plurality of openings arranged in plan, in a line. The fluid handling structure is configured such that the openings are directed, in use, towards a facing surface, the facing surface being a substrate and/or a substrate table. The substrate table is configured to support the substrate. Outward of the line of openings is a damper. The damper may have a width that varies along the line of openings. The damper width is defined between the line of openings and an opposing damper edge.Type: GrantFiled: July 21, 2009Date of Patent: July 5, 2016Assignee: ASML NETHERLANDS B.V.Inventors: Daniel Jozef Maria Direcks, Sjoerd Nicolaas Lambertus Donders, Nicolaas Rudolf Kemper, Danny Maria Hubertus Philips, Michel Riepen, Clemens Johannes Gerardus Van Den Dungen, Adrianes Johannes Baeten, Fabrizio Evangelista
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Patent number: 9360829Abstract: In an image processing apparatus, a control device controls a releasing member to release a release object onto a sheet to perform an image processing; controls a first rotating body to rotate to convey the sheet on which the releasing member has released the release object; controls a second rotating body to rotate to convey the sheet whose leading edge has passed through the first rotating body; determines whether a cover is in an open position or a close position relative to a housing of the image processing apparatus based on a signal outputted by a cover sensor; and restricts, when the cover is determined to be in the open position based on the signal, a rotation of the second rotating body while the first rotating body rotates.Type: GrantFiled: October 22, 2014Date of Patent: June 7, 2016Assignee: Brother Kogyo Kabushiki KaishaInventors: Masato Makino, Yohei Hashimoto
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Patent number: 9300829Abstract: In conventional image reading in a large-sized scanner using plural CIS sensors, overall linearity of an original is poor, and a shift occurs particularly at connection portions of the CIS sensors in the read image. To solve this, an image reading apparatus in which CISs are arranged zigzag, and an original is read while conveying the original by a conveyance roller in a direction different from an arrayed direction of the reading elements of the CIS sensors performs following correction. That is, a shift from an image position in a calibration sheet corresponding to a rotation angle of the conveyance roller for at each position of the CIS sensors is detected from image data obtained by reading the calibration sheet while conveying the calibration sheet by the conveyance roller. The shift is corrected.Type: GrantFiled: March 23, 2015Date of Patent: March 29, 2016Assignee: CANON KABUSHIKI KAISHAInventor: Yoshitsugu Sohara
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Patent number: 9253367Abstract: An image forming apparatus includes an image carrying member, a charging device that uniformly charges the image carrying member, an exposure device that forms an electrostatic latent image on the image carrying member, a development device that applies a development bias voltage to form a visible image in which toner is adhered to the electrostatic latent image, a control portion that controls an exposure amount in the exposure device and the development bias voltage and a storage portion that stores an exposure condition and a development condition. The resolution of image data can be switched to at least two types, a standard resolution and a high resolution higher than the standard resolution, and when the resolution of the image data is set at the high resolution, the control portion controls the exposure amount in the exposure device to perform thinning processing on the image.Type: GrantFiled: March 12, 2015Date of Patent: February 2, 2016Assignee: KONICA MINOLTA, INC.Inventors: Mitsuru Obara, Tetsuya Sakai, Munenori Nakano, Hironori Akashi, Tomoyuki Saito
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Patent number: 9235790Abstract: A recording material processing device, includes: an accumulation unit that is accumulated with a plurality of recording materials each of which is a recording material formed with an image by an image forming unit and inspected by an inspection unit, where the image forming unit that forms the image on the recording material based on original image data; and a processing unit that removes the recording material which was determined to have a defect which occurred in the image by the inspecting unit, among the plurality of recording materials and adds a new recording material on which a same image is formed by the image forming unit, to the plurality of recording materials, the same image being based on the original image data of the image formed on the defective recording material.Type: GrantFiled: October 16, 2013Date of Patent: January 12, 2016Assignee: FUJI XEROX CO., LTD.Inventors: Takashi Hiramatsu, Kiyofumi Aikawa, Kazuya Fukunaga, Michio Kikuchi, Natsumi Miyazawa
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Patent number: 9233812Abstract: Apparatuses and methods for dispensing magnetic stripe cards, smart cards, other cards, and/or other items from kiosks and other structures are disclosed herein. In one embodiment, a card dispensing apparatus includes at least a first card hopper and a card transport assembly. The first card hopper is configured to hold a stack of cards that includes at least a first card stacked on a second card. The card transport assembly includes a card carrier configured to lift the first card off the second card and transfer the first card toward a card outlet. Methods are also disclosed for monitoring card stacks in a card dispensing apparatus and for prereading cards prior to sale to expedite dispensing operations. Devices are also disclosed for maintaining the alignment or levelness of top cards in stacks of cards having embossing or other raised features that cause uneven stacking.Type: GrantFiled: November 5, 2010Date of Patent: January 12, 2016Assignee: Outerwall Inc.Inventors: Douglas A. Martin, Gregory P. Winters
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Patent number: 9213217Abstract: Disclosed is an imaging apparatus provided with: a light irradiation unit which irradiates a target area with light; a differential image generation unit which generates a differential image between a first image which was taken in synchronization with the irradiation period during which the light irradiation unit irradiates the light and a second image which was taken outside the irradiation period; a transmittance estimation unit which estimates the light transmittance of an object in the target area; and a light exposure adjustment unit which adjusts the exposure based on the estimation result from the transmittance estimation unit. The transmittance estimation unit estimates the transmittance of the object from at least one of the first image, the second image, and the differential image.Type: GrantFiled: February 23, 2011Date of Patent: December 15, 2015Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yasuhiro Mori, Hideki Kawahara, Mutsuhiro Yamanaka, Toshiharu Takenouchi, Eiji Nakamoto, Osamu Uesugi
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Patent number: 9190310Abstract: Improved reduction of static charge in spin chucks is achieved by providing one or more pin assemblies which are formed from chemically inert material and which include an electrically conductive inlay.Type: GrantFiled: April 16, 2010Date of Patent: November 17, 2015Assignee: LAM RESEARCH AGInventors: Michael Brugger, Otto Lach
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Patent number: 9191544Abstract: A method and apparatus for configuring an image production device is disclosed. The method may include receiving a signal to scan a document containing one or more coded objects, scanning the object coded document, decoding the one or more coded objects from the scanned object coded document into feature identification data, matching the feature identification data to one or more corresponding image production device features, and enabling the one or more corresponding image production device features on the image production device.Type: GrantFiled: October 15, 2008Date of Patent: November 17, 2015Assignee: Xerox CorporationInventor: Paul Siddle
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Patent number: 9165215Abstract: Disclosed herein is a method of fast image matching that includes the steps as follows. A template image with a predetermined angular orientation is compared with template images in the range from 0 to 360 degrees to create an angle prediction table. Next, a testing image is acquired and compared with the template image with the predetermined angular orientation to record the similarity at each position, and a plurality of angles corresponding to the similarity is found from the angle prediction table. Afterwards, the template images of the plurality of angles are respectively compared with the testing image to obtain the highest similarity as a comparison result of the position.Type: GrantFiled: April 24, 2013Date of Patent: October 20, 2015Assignee: DELTA ELECTRONICS, INC.Inventor: Juang-Yu Wei
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Patent number: 9140999Abstract: A reticle assembly for use in a lithographic process in which a first image field and a second image field are projected onto a first target portion and a second target portion on a substrate, the reticle assembly being arranged to hold a first reticle having the first image field and a second reticle having the second image field such that a distance between the first and second image fields substantially corresponds to a distance between the first and the second target portions. Embodiments also relate to a lithographic apparatus including the reticle assembly, the use in a lithographic process in which a first image field and a second image field are projected onto a first target portion and a second portion on a substrate, of a first reticle having the first image field and a second reticle having the second image field, wherein a distance between the first and second image fields substantially corresponds to a distance between the first and second target portions.Type: GrantFiled: November 16, 2012Date of Patent: September 22, 2015Assignee: ASML NETHERLANDS B.V.Inventor: Paul Van Der Veen
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Patent number: 9134625Abstract: A method produces at least one monitor wafer for a lithographic apparatus. The monitor wafer is for use in combination with a scanning control module to periodically retrieve measurements defining a baseline from the monitor wafer thereby determining parameter drift from the baseline. In doing this, allowance and/or correction can be to be made for the drift. The baseline is determined by initially exposing the monitor wafer(s) using the lithographic apparatus, such that the initial exposure is performed while using non-standard alignment model settings optimized for accuracy, such as those used for testing the apparatus. An associated lithographic apparatus is also disclosed.Type: GrantFiled: January 20, 2011Date of Patent: September 15, 2015Assignee: ASML Netherlands B.V.Inventors: Alexander Viktorovych Padiy, Boris Menchtchikov
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Patent number: 9123583Abstract: The present disclosure relates to a method of monitoring wafer topography. A position and orientation of a plurality first alignment shapes disposed on a surface of a wafer are measured. Wafer topography as a function of wafer position is modeled by subjecting the wafer to an alignment which simultaneously minimizes misalignment between the wafer and a patterning apparatus and maximizes a focus of radiation on the surface. A non-correctable error is determined as a difference between the modeled wafer topography and a measured wafer topography. A maximum non-correctable error per field is determined for a wafer, and a mean variation in the maximum non-correctable error across each field within each wafer of a lot is determined, both within a layer and across layers. These values are then verified against a set of statistical process control rules to determine if they are within a specification limit of the manufacturing process.Type: GrantFiled: July 12, 2013Date of Patent: September 1, 2015Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Chun-Hsien Lin, Kuo-Hung Chao, Yi-Ping Hsieh, Yen-Di Tsen, Jui-Chun Peng, Heng-Hsin Liu, Jong-I Mou
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Patent number: 9093005Abstract: A display device includes a display area displaying information therein, an information storing unit storing therein a plurality of pieces of predetermined information displayable in the display area, an abbreviation storing unit storing therein an abbreviation corresponding to each of the predetermined information, an information detecting unit configured to detect first information of the predetermined information as a subject to be displayed in the display area, a judging unit judging whether the first information includes a plurality of pieces of information, and a first control unit configured to acquire each of the first information and an abbreviation thereof from the information storing unit and the abbreviation storing unit, respectively, and to display each of the first information and the abbreviation thereof in the display area, in case where it is judged that the first information includes a plurality of pieces of information.Type: GrantFiled: March 18, 2008Date of Patent: July 28, 2015Assignee: Brother Kogyo Kabushiki KaishaInventor: Wataru Mizumukai
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Publication number: 20150146188Abstract: A method to determine the usefulness of an alignment mark of a first pattern in transferring a second pattern to a substrate relative to the first pattern already present on the substrate includes measuring the position of the alignment mark, modeling the position of the alignment mark, determining the model error between measured and modeled position, measuring a corresponding overlay error between first and second pattern and comparing the model error with the overlay error to determine the usefulness of the alignment mark. Subsequently this information can be used when processing next substrates thereby improving the overlay for these substrates. A lithographic apparatus and/or overlay measurement system may be operated in accordance with the method.Type: ApplicationFiled: April 23, 2013Publication date: May 28, 2015Inventors: Irina Lyulina, Franciscus Godefridus Casper Bijnen, Remi Daniel Marie Edart, Antoine Gaston Marie Kiers, Michael Kubis
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Patent number: 9041902Abstract: An exposure apparatus exposes a substrate with exposure light via a liquid. The exposure apparatus includes an optical system including an emission surface from which the exposure light is emitted; a liquid supply port that supplies the liquid in order to fill an optical path of the exposure light emitted from the emission surface with the liquid; and a fluid supply port that supplies a fluid including a material capable of changing the specific resistance of the liquid to at least a part of a space around a liquid immersion space that is formed by the liquid.Type: GrantFiled: September 8, 2011Date of Patent: May 26, 2015Assignee: NIKON CORPORATIONInventor: Junichi Chonan
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Patent number: 9041911Abstract: A lithographic apparatus having an optical column capable of creating a pattern on a target portion of the substrate. The optical column may be provided with a self-emissive contrast device configured to emit a beam and a projection system configured to project the beam onto the target portion. The apparatus may be provided with an actuator to move the optical column or a part thereof with respect to the substrate. An optical sensor device is provided which is movable in respect of the optical columns and has a range of movement which enables the optical sensor device to move through a projection area of each of the optical columns to measure a beam of each of the optical columns.Type: GrantFiled: February 18, 2011Date of Patent: May 26, 2015Assignee: ASML NETHERLANDS B.V.Inventors: Johannes Onvlee, Pieter Willem Herman De Jager, Erwin John Van Zwet
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Patent number: 9041909Abstract: The present invention provides an exposure apparatus and an exposure method. The method comprises: utilizing an exposure light source to provide light rays to the photo-resist layer, wherein the light rays pass through the mask and the transparent substrate to reach the photo-resist layer; and utilizing a reflective plate to reflect the light rays passing through the transparent substrate and the photo-resist layer back to the photo-resist layer. The present invention can reduce a line space of a pattern of the photo-resist layer.Type: GrantFiled: December 8, 2011Date of Patent: May 26, 2015Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Minghung Shih, Jehao Hsu, Jingfeng Xue
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Patent number: 9041908Abstract: The disclosure relates to a method for adapting a projection exposure apparatus for microlithography to a mask having structures with different pitches and/or different structure widths in different structure directions. Wavefront aberrations induced by the mask are reduced by a manipulator of the projection exposure apparatus for microlithography.Type: GrantFiled: July 23, 2012Date of Patent: May 26, 2015Assignee: Carl Zeiss SMT GmbHInventor: Johannes Ruoff
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Publication number: 20150138526Abstract: Disclosed is a printing device comprising a collimation layer disposed between a display screen and a sheet of instant film. The printing device quickly and compactly prints the display screen contents to the instant film, using a collimation layer that may be embedded in an opaque ribbon and drawn across the instant film. The collimation layer blocks any light not parallel to the normal vector of the display screen, thereby eliminating the need for traditional lenses to focus light. This in turn allows the printing device to yield high resolution photos with very short printing timeframes.Type: ApplicationFiled: February 20, 2014Publication date: May 21, 2015Applicant: Pacific Opal LLCInventors: Ismail Degani, Isaac Degani
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Patent number: 9036133Abstract: A lithographic method related to Talbot imaging for printing a desired pattern of features that is periodic or quasi-periodic in at least one direction onto a substrate surface, which method includes providing a mask bearing a pattern of mask features, arranging the substrate parallel and in proximity to the mask, providing an illumination source having a central wavelength and a spectral bandwidth, forming from said source an illumination beam with an angular distribution of intensity, arranging the distance of the substrate from the mask and exposing the mask pattern to said beam so that each angular component of illumination exposes the substrate to substantially the entire range of lateral intensity distributions that occur between successive Talbot image planes for the illumination wavelengths, wherein the angular distribution of the beam is designed in conjunction with the pattern of features in the mask and the distance of the substrate from the mask.Type: GrantFiled: August 26, 2011Date of Patent: May 19, 2015Assignee: Eulitha AGInventors: Harun H. Solak, Christian Dais, Francis Clube
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Patent number: 9036127Abstract: An immersion lithographic apparatus is disclosed that includes a fluid supply system configured to supply a fluid, the fluid supply system having a chamber with a plurality of inlet holes in a first side wall and a plurality of outlet holes in a second side wall, the first side wall facing the second side wall, wherein the inlet holes direct fluid entering the chamber in a direction towards areas of the second side wall between the plurality of outlet holes.Type: GrantFiled: April 14, 2009Date of Patent: May 19, 2015Assignee: ASML NETHERLANDS B.V.Inventors: Clemens Johannes Gerardus Van den Dungen, Nicolaas Franciscus Koppelaars, Martinus Hendrikus Antonius Leenders, Paulus Martinus Maria Liebregts, Johannes Catharinus Hubertus Mulkens, Erik Henricus Egidius Catharina Eummelen, Marcel Beckers, Richard Moerman, Cédric Désiré Grouwstra, Danny Maria Hubertus Philips, Remko Jan Peter Verhees, Pieter Mulder, Evert Van Vliet
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Patent number: 9036130Abstract: A device for transmission image sensing for sensing an aerial image in a lithographic exposure apparatus comprises a projection system arranged to form, at an image side of the projection system, an aerial image of an object mark. The device further comprises a detector comprising a slit pattern having features corresponding to at least a part of the aerial image. The slit pattern is arranged to be exposed to the aerial image. The detector is further being arranged to detect detection radiation transmitted by the slit pattern; wherein d<0.85 ?/NA, where d represents the dimension of the smallest feature of the slit pattern, ? represents the intended wavelength of the detection radiation, and NA, which is larger than 1, represents the numerical aperture of the image side.Type: GrantFiled: February 19, 2010Date of Patent: May 19, 2015Assignee: ASML Netherlands B.V.Inventor: Bearrach Moest
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Publication number: 20150131065Abstract: A foreign substance detection method includes: judging the presence/absence of a foreign substance by measuring a surface condition of a substrate; measuring a surface condition of a second substrate different from the substrate upon replacing the substrate on the chuck with the second substrate, when it is judged in the judging that a foreign substance exists; and determining whether an adhering location of the foreign substance determined to exist in the judging is the substrate, based on a measurement result obtained in the measurement.Type: ApplicationFiled: November 5, 2014Publication date: May 14, 2015Inventors: Tadao NAKAMURA, Yuji KOSUGI, Tomohisa NAKAZAWA