Patents Examined by Hung V Nguyen
  • Patent number: 11966165
    Abstract: A bottom lens for an immersion exposure tool includes a hydrophobic coating on the sidewalls of the bottom lens. A bottom portion of the bottom lens is not coated with the hydrophobic coating to maintain the optical performance of the bottom lens and to not distort a pattern that is to be transferred to a substrate. The hydrophobic coating may reduce the thermal instability of the bottom lens. This may reduce overlay variation during operation of the immersion exposure tool, which may increase manufacturing yield, decrease device failures, and/or decrease rework and repairs.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: April 23, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventor: Yung-Yao Lee
  • Patent number: 11959864
    Abstract: A photolithography method includes dispensing a first liquid toward a target layer through a nozzle at a first distance from the target layer; moving the nozzle such that the nozzle is at a second distance from the target layer, wherein the second distance is different from the first distance; dispensing a second liquid toward the target layer through the nozzle at the second distance from the target layer; and patterning the target layer after dispensing the first liquid and the second liquid.
    Type: Grant
    Filed: November 22, 2022
    Date of Patent: April 16, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chi-Hung Liao, Wei Chang Cheng
  • Patent number: 11960211
    Abstract: In an embodiment, an apparatus includes an energy source, a support platform for holding a wafer, an optical path extending from the energy source to the support platform, and a photomask aligned such that a patterned major surface of the photomask is parallel to the force of gravity, where the optical path passes through the photomask, where the patterned major surface of the photomask is perpendicular to a topmost surface of the support platform.
    Type: Grant
    Filed: July 9, 2021
    Date of Patent: April 16, 2024
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Hung-Jui Kuo, Ting-Yang Yu, Ming-Tan Lee
  • Patent number: 11960215
    Abstract: A radiation filter for reducing transmission of an unwanted wavelength of radiation. The radiation filter includes zirconium and SiN3. The radiation filter may form part of a radiation sensor including a passivation layer arranged to receive radiation transmitted by the radiation filter, a photodiode arranged to receive radiation transmitted by the passivation layer, and circuit elements connected to the photodiode. The radiation sensor may perform optical measurements as part of an extreme ultraviolet lithographic apparatus or a lithographic tool.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: April 16, 2024
    Assignee: ASML NETHERLANDS B. V.
    Inventors: Vahid Mohammadi, Yassin Chowdhury, Pieter Cristiaan De Groot, Wouter Joep Engelen, Marcel Johannes Petrus Theodorus Van Der Hoorn
  • Patent number: 11960213
    Abstract: A substrate holder for a lithographic apparatus has a main body having a thin-film stack provided on a surface thereof. The thin-film stack forms an electronic or electric component such as an electrode, a sensor, a heater, a transistor or a logic device, and has a top isolation layer. A plurality of burls to support a substrate are formed on the thin-film stack or in apertures of the thin-film stack.
    Type: Grant
    Filed: April 12, 2023
    Date of Patent: April 16, 2024
    Assignee: ASML NETHERLANDS B.V.
    Inventors: Raymond Wilhelmus Louis Lafarre, Sjoerd Nicolaas Lambertus Donders, Nicolaas Ten Kate, Nina Vladimirovna Dziomkina, Yogesh Pramod Karade, Elisabeth Corinne Rodenburg
  • Patent number: 11947271
    Abstract: A lithographic system for projecting an image onto a workpiece using radiation is provided. The lithographic system includes: a support structure for supporting a workpiece; a radiation source for providing radiation to project an image on the workpiece; a reticle positioned between the radiation source and the workpiece; and a mask positioned adjacent the reticle, the mask being configured to block radiation from the radiation source, the mask including a heat removal apparatus.
    Type: Grant
    Filed: December 5, 2022
    Date of Patent: April 2, 2024
    Assignee: Kulicke & Soffa Liteq B.V.
    Inventors: Jeroen de Boeij, Mikhail Yurievich Loktev
  • Patent number: 11940734
    Abstract: The inventive concept provides a substrate treating apparatus. The substrate treating apparatus includes a chamber having a treating space therein; a supply line having a first open/close valve installed thereon and configured to supply a treating fluid to the treating space; a heater installed on the supply line and configured to heat the treating fluid; an exhaust line having a second open/close valve installed thereon and configured to exhaust the treating space; and, a controller configured to control the first open/close value and the second open/close valve such that the treating fluid heated is supplied to and exhausted from the treating space before a treating process is performed on a substrate in the treating space.
    Type: Grant
    Filed: April 21, 2022
    Date of Patent: March 26, 2024
    Assignee: SEMES CO., LTD.
    Inventors: Ki Hoon Choi, Eung Su Kim, Pil Kyun Heo, Jin Yeong Sung, Hae-Won Choi, Anton Koriakin, Joon Ho Won
  • Patent number: 11940391
    Abstract: A defect inspection apparatus has a defect detection unit 152 that acquires first defect information on a defect of a photomask blank MB as a substrate; and a comparative information acquisition unit 150 that acquires a result of comparison between predetermined defect information stored in a storage unit 155 and the first defect information.
    Type: Grant
    Filed: April 1, 2022
    Date of Patent: March 26, 2024
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Ryusei Terashima, Takumi Yoshino, Tsuneo Terasawa
  • Patent number: 11933739
    Abstract: An image of an inspection surface of a product shot with a first imaging unit is divided into partial area images. For each partial area, a narrow-angle partial area image shot with a second imaging unit is acquired under shooting conditions in a pre-learning table in which the conditions and IDs are set. For each partial area, the narrow-angle partial area image suitable for inspection is selected, an inspection image is generated, and an anomaly of the inspection surface is detected based on the inspection image. For each partial area, whether each condition is effective is determined based on a frequency of the ID included by the inspection image. For each partial area, whether a predetermined condition is established is determined, and, with respect to the partial area in which the predetermined condition is established, a post-learning table is established in which only the condition determined to be effective is set.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: March 19, 2024
    Assignee: NEC CORPORATION
    Inventors: Takashi Shibata, Toru Takahashi, Rui Ishiyama
  • Patent number: 11933962
    Abstract: Spatial light modulators (SLMs) and systems using same are described. Generally, the system includes a laser, a fixture holding a workpiece to be processed using the laser, illumination optics to illuminate the SLM with laser light, imaging optics to focus modulated light from the SLM onto the workpiece, and a controller to control the laser, the SLM, imaging optics and the fixture to scan the modulated light across a workpiece surface. The SLM includes an array of microelectromechanical system based diffractors, each including an electrostatically deflectable member coupled to a first light reflective surface and to bring light reflected from the first light reflective surface into interference with light reflected from a second light reflective surface in the SLM. The controller is operable to provide analog gray-scale control of an intensity of modulated light reflected from each diffractor by controlling an electrostatic force generated by a driver coupled thereto.
    Type: Grant
    Filed: February 3, 2022
    Date of Patent: March 19, 2024
    Inventors: Stephen Hamann, Alexander Payne, Lars Eng, James Hunter, Tianbo Liu, Gregory Jacob
  • Patent number: 11934103
    Abstract: A method and apparatus for applying an electric field and/or a magnetic field to a photoresist layer without air gap intervention during photolithography processes is provided herein. The method and apparatus include a transfer device and a plurality of modules. The transfer device is configured to rotate a plurality of substrates between each of the modules, wherein one module includes a heating pedestal and another module includes a cooling pedestal. One module is utilized for inserting and removing the substrates from the system. At least the heating module is able to be sealed and filled with a process volume before applying the electric field.
    Type: Grant
    Filed: February 9, 2022
    Date of Patent: March 19, 2024
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Douglas A. Buchberger, Jr., Dmitry Lubomirsky, John O. Dukovic, Srinivas D. Nemani
  • Patent number: 11933737
    Abstract: A detection device for detecting a workpiece with multiple surfaces includes a rotary table carrying the workpiece and moving the workpiece by rotation and a plurality of photographing devices arranged at a plurality of different positions around the rotary table. Each photographing device has an image capture device capturing an image of a corresponding surface of the workpiece that is moved to the image capture device. An orientation of the image capture device is defined by a first offset angle and a second offset angle when the image capture device captures the image of the corresponding surface of the workpiece.
    Type: Grant
    Filed: May 18, 2022
    Date of Patent: March 19, 2024
    Assignees: Tyco Electronics AMP Guangdong Ltd., TE Connectivity Solutions GmbH, Tyco Electronics (Shanghai) Co., Ltd.
    Inventors: Lei (Alex) Zhou, Dandan (Emily) Zhang, Roberto Francisco-Yi Lu, Yanlin Huang, Yangqin Ma, Wei Yang, Guishou Chen, Ming Yang, Yuanyi Zhao
  • Patent number: 11927544
    Abstract: Provided are a wafer defect tracing method and apparatus, an electronic device and a computer readable medium. The method includes: obtaining defect data of a wafer; obtaining position data of fail bits of the wafer; determining a defect area of a storage block in the wafer according to the defect data; determining a fail bit count of the storage block in the wafer according to the position data of the fail bits; processing the defect area and the fail bit count of each storage block in the wafer, so as to obtain a correlation coefficient; and determining an abnormal reason for the fail bits of the wafer according to the correlation coefficient.
    Type: Grant
    Filed: September 15, 2021
    Date of Patent: March 12, 2024
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventor: Yui-Lang Chen
  • Patent number: 11927539
    Abstract: This inspection apparatus is for inspecting an inspection subject device. The inspection subject device is formed on an object to be inspected, and is a reverse-side irradiation-type imaging device into which light enters from the reverse side opposite to the side where a wiring layer is provided. This inspection apparatus has: a placement table having a transparent surface on which the object to be inspected is placed; a light irradiation mechanism that is provided in the placement table and that irradiates the to-be-inspected object placed on the placement table with light through the placement surface; and an acquisition unit that acquires in-plane distribution of illuminance of light from the placement table.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: March 12, 2024
    Assignee: Tokyo Electron Limited
    Inventors: Naoki Akiyama, Hiroyuki Nakayama, Susumu Saito
  • Patent number: 11927890
    Abstract: A substrate processing apparatus includes a photoresist coater applying a photoresist film on a substrate, a humidifier increasing an amount of moisture in an ambient to which the photoresist film on the substrate is exposed, and an exposer irradiating the photoresist film exposed to the ambient having the increased amount of moisture with light. The humidifier is disposed between the photoresist coater and the exposer.
    Type: Grant
    Filed: August 22, 2022
    Date of Patent: March 12, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seok Heo, Cha Won Koh, Sang Joon Hong, Hyun Woo Kim, Kyung-Won Kang, Dong-Wook Kim, Kyung Won Seo, Young Il Jang, Yong Suk Choi
  • Patent number: 11921430
    Abstract: A lithography method to pattern a first semiconductor wafer is disclosed. An optical mask is positioned over the first semiconductor wafer. A first region of the first semiconductor wafer is patterned by directing light from a light source through transparent regions of the optical mask. A second region of the first semiconductor wafer is patterned by directing energy from an energy source to the second region, wherein the patterning of the second region comprises direct-beam writing.
    Type: Grant
    Filed: July 25, 2022
    Date of Patent: March 5, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LIMITED
    Inventors: Tsiao-Chen Wu, Chi-Ming Yang, Hsu-Shui Liu
  • Patent number: 11921435
    Abstract: A lithographic system for projecting an image onto a workpiece using radiation is provided. The lithographic system includes: a support structure for supporting a workpiece; a radiation source for providing radiation to project an image on the workpiece; a reticle positioned between the radiation source and the workpiece; and a mask positioned adjacent the reticle, the mask being configured to block radiation from the radiation source, the mask including a heat removal apparatus.
    Type: Grant
    Filed: December 5, 2022
    Date of Patent: March 5, 2024
    Assignee: Kulicke & Soffa Liteq B.V.
    Inventors: Jeroen de Boeij, Mikhail Yurievich Loktev
  • Patent number: 11921422
    Abstract: Embodiments of baking chambers for baking a substrate and methods of use thereof are provided herein. In some embodiments, a multi-chamber process tool for processing a substrate including: a wet clean chamber for cleaning the substrate; and a baking chamber configured to heat the substrate to remove residue or haze left over after a wet clean process performed in the wet clean chamber, the baking chamber comprising: a chamber body enclosing an interior volume; a heater disposed in the interior volume, wherein the heater is configured to have a surface temperature of about 100 to about 400 degrees Celsius during use; a substrate support configured to support a substrate disposed in the interior volume, wherein the substrate support has a direct line of sight with the heater such that the heater heats the substrate support via convection; and a gas inlet and a gas outlet coupled to the interior volume.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: March 5, 2024
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Banqiu Wu, Khalid Makhamreh, Eliyahu Shlomo Dagan
  • Patent number: 11915961
    Abstract: A measurement system used in a manufacturing line for micro-devices includes: a plurality of measurement devices in which each device performs measurement processing on a substrate; and a carrying system to perform delivery of a substrate with the plurality of measurement devices. The plurality of measurement devices includes a first measurement device that acquires position information on a plurality of marks formed on a substrate, and a second measurement device that acquires position information on a plurality of marks formed on a substrate. Position information on a plurality of marks formed on a substrate can be acquired under a setting of a first predetermined condition in the first measurement device, and position information on a plurality of marks formed on another substrate can be acquired under a setting of a second predetermined condition different from the first predetermined condition in the second measurement device.
    Type: Grant
    Filed: July 21, 2022
    Date of Patent: February 27, 2024
    Assignee: NIKON CORPORATION
    Inventors: Go Ichinose, Tomonori Dosho
  • Patent number: 11914308
    Abstract: A lithographic apparatus having a substrate table, a projection system, an encoder system, a measurement frame and a measurement system. The substrate table has a holding surface for holding a substrate. The projection system is for projecting an image on the substrate. The encoder system is for providing a signal representative of a position of the substrate table. The measurement system is for measuring a property of the lithographic apparatus. The holding surface is along a plane. The projection system is at a first side of the plane. The measurement frame is arranged to support at least part of the encoder system and at least part of the measurement system at a second side of the plane different from the first side.
    Type: Grant
    Filed: March 20, 2023
    Date of Patent: February 27, 2024
    Assignee: ASML NETHERLANDS B.V.
    Inventors: Hans Butler, Engelbertus Antonius Fransiscus Van Der Pasch, Paul Corné Henri De Wit