Patents Examined by Nicholas Lee
  • Patent number: 11953832
    Abstract: A positive resist composition comprising a base polymer comprising repeat units having the structure of a sulfonium salt of a substituted or unsubstituted salicylic acid exhibits a high sensitivity, high resolution, low edge roughness and small size variation, and forms a pattern of good profile after exposure and development.
    Type: Grant
    Filed: January 7, 2022
    Date of Patent: April 9, 2024
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventor: Jun Hatakeyama
  • Patent number: 11953833
    Abstract: A compound represented by Formula (1). [In the formula, X represents a halogen atom or an alkoxy group, R1 represents any one group selected from an alkyl group having 1 to 5 carbon atoms, a group represented by Formula (R2-1), and a group represented by Formula (R2-2), R2 represents a group represented by Formula (R2-1) or (R2-2), n0 represents an integer of 0 or greater, n1 represents an integer of 0 to 5, and n2 represents a natural number of 1 to 5.
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: April 9, 2024
    Assignee: NIKON CORPORATION
    Inventors: Yusuke Kawakami, Kazuo Yamaguchi, Michiko Itou
  • Patent number: 11940730
    Abstract: Disclosed herein is a pattern formation method, comprising (a) applying a layer of a photoresist composition over a semiconductor substrate, (b) pattern-wise exposing the photoresist composition layer to i-line radiation; and (c) developing the exposed photoresist composition layer to provide a resist relief image; wherein the photoresist composition comprises a non-ionic photoacid generator; a solvent; a first polymer and a second polymer; and wherein the first polymer comprises a polymeric dye.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: March 26, 2024
    Assignee: ROHM AND HAAS ELECTRONIC MATERIALS LLC
    Inventors: Mitsuru Haga, Mingqi Li
  • Patent number: 11932715
    Abstract: A hardmask composition and a method of forming patterns using the hardmask composition, the composition including a polymer including a moiety derived from a compound represented by Chemical Formula 1; and a solvent:
    Type: Grant
    Filed: December 21, 2021
    Date of Patent: March 19, 2024
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Donghoon Won, Yongsik Yoo, Hyunsoo Lee, Seil Choi, Huiseon Choe
  • Patent number: 11934100
    Abstract: A composition for forming a silicon-containing resist underlayer film contains a compound shown by the following general formula (A-1) and a thermally crosslinkable polysiloxane. R1 represents a methyl group, an ethyl group, a propyl group, an allyl group, or a propargyl group. R2 represents a hydrogen atom, an acetyl group, an acryloyl group, a methacryloyl group, a benzoyl group, a naphthoyl group, or an anthranoyl group. R3 represents a methyl group, an ethyl group, a propyl group, an allyl group, a propargyl group, or a group shown by the following general formula (A-2), where a broken line represents a bonding arm, and R1 and R2 are as defined above. An object of the present invention is to provide a silicon-containing resist underlayer film capable of exhibiting high effect of suppressing ultrafine pattern collapse and forming a resist pattern with favorable pattern profile in multilayer resist methods.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: March 19, 2024
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Daisuke Kori, Yusuke Kai, Kazunori Maeda
  • Patent number: 11914294
    Abstract: A positive resist composition comprising a base polymer comprising repeat units having a carboxy group whose hydrogen is substituted by an acid labile group in the form of a tertiary hydrocarbon group containing a nitrogen atom and aromatic group exhibits a high sensitivity, high resolution, low edge roughness and small size variation, and forms a pattern of good profile after exposure and development.
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: February 27, 2024
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventor: Jun Hatakeyama
  • Patent number: 11852985
    Abstract: An imprint method includes supplying a first photocurable resist to a first region of an object; irradiating the first resist with first light; forming a second resist over the object; bringing a template into contact with the second resist; and irradiating at least the second resist with second light through the template while the template is in contact with the second resist.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: December 26, 2023
    Assignee: KIOXIA CORPORATION
    Inventors: Takeshi Higuchi, Anupam Mitra, Takahiro Iwasaki
  • Patent number: 11852974
    Abstract: An object of the present invention is to provide a conductive polymer composition which has good filterability and good film formability of a flat film on an electron beam resist and can be suitably used for an antistatic film for electron beam resist writing, showing excellent antistatic property in the electron beam writing process due to the property of low volume resistivity (?·cm), and, reducing an effect on lithography by making an effect of an acid diffused from the film minimum, and further having excellent peelability by H2O or an alkaline developer after writing.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: December 26, 2023
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Takayuki Nagasawa, Keiichi Masunaga, Masaaki Kotake, Satoshi Watanabe
  • Patent number: 11841617
    Abstract: A method of forming a pattern on a substrate is provided. The method includes forming a first layer on an underlying layer of the substrate, where the first layer is patterned to have a first structure. The method also includes depositing a grafting material on side surfaces of the first structure, where the grafting material includes a solubility-shifting material. The method further includes diffusing the solubility-shifting material by a predetermined distance into a neighboring structure that abuts the solubility-shifting material, where the solubility-shifting material changes solubility of the neighboring structure in a developer, and removing soluble portions of the neighboring structure using the developer to form a second structure.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: December 12, 2023
    Assignee: Tokyo Electron Limited
    Inventors: Anton J. Devilliers, Jodi Grzeskowiak, Daniel Fulford, Richard A. Farrell, Jeffrey Smith
  • Patent number: 11835859
    Abstract: A resist composition is provided comprising a base polymer and a quencher comprising a salt compound obtained from a nitrogen-containing compound having an iodized aromatic ring bonded to the nitrogen atom via a C1-C20 hydrocarbon group and a compound having a 1,1,1,3,3,3-hexafluoro-2-propanol group. The resist composition has a high sensitivity and forms a pattern with improved LWR or CDU, independent of whether it is of positive or negative tone.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: December 5, 2023
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Jun Hatakeyama, Takeshi Nagata, Chuanwen Lin
  • Patent number: 11829068
    Abstract: A resist composition that generates acid upon exposure and exhibits changed solubility in a developing solution under action of acid, which contains a resin component (A1) exhibiting changed solubility in a developing solution under action of acid, the resin component (A1) has a constitutional unit (a01) derived from a compound represented by General Formula (a0-1), W01 represents a polymerizable group-containing group, Ya01 represents a single bond or a divalent linking group, Ra01 represents a cyclic acid dissociable group, q represents an integer in a range of 0 to 3, and n represents an integer of 1 or more, provided that n?q×2+4 is satisfied
    Type: Grant
    Filed: October 11, 2021
    Date of Patent: November 28, 2023
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Koshi Onishi, Masatoshi Arai, Junichi Miyakawa
  • Patent number: 11809082
    Abstract: A pattern forming method includes forming a resist film having a first region, a second region, and a third region, on a substrate, irradiating the first region with light or an energy ray in a first irradiation amount, and irradiating the second region with light or an energy ray in a second irradiation amount, the second irradiation amount being smaller than the first irradiation amount. The pattern forming method also includes dissolving the resist film of the first region by using first liquid, forming a coating film on a side surface of the resist film after the resist film of the first region is dissolved, and dissolving the third region by using second liquid that is different from the first liquid.
    Type: Grant
    Filed: March 2, 2021
    Date of Patent: November 7, 2023
    Assignee: KIOXIA CORPORATION
    Inventor: Mitsuru Kondo
  • Patent number: 11796915
    Abstract: A pattern forming material used for forming an organic film on a film to be processed of a substrate having the film to be processed, the organic film being patterned and then impregnated with a metallic compound to form a composite film which is used as a mask pattern when processing the film to be processed, the pattern forming material contains a polymer including a monomer unit represented by the following general formula (3), where, R1 is H or CH3, R2 is a C2-14 hydrocarbon group, Q is a C1-20 hydrocarbon group, or an organic group containing an oxygen atom, a nitrogen atom, or a sulfur atom between carbon-carbon atoms or at a bond terminal of a C1-20 hydrocarbon group, and X and Y are independently a hydrogen atom or a C1-4 hydrocarbon group, at least one of them being the C1-4 hydrocarbon group.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: October 24, 2023
    Assignee: Kioxia Corporation
    Inventors: Norikatsu Sasao, Koji Asakawa, Shinobu Sugimura
  • Patent number: 11747733
    Abstract: A method of patterning a substrate includes depositing an overcoat in openings of a relief pattern. The relief pattern includes a solubility-shifting agent and a deprotectable monomer sensitive to the solubility-shifting agent. The overcoat includes another deprotectable monomer sensitive to the solubility-shifting agent. The overcoat has a solubility threshold relative to a predetermined developer that is lower than the solubility threshold of the relief pattern relative to the developer. The method includes activating the solubility-shifting agent to at least reach the solubility threshold of the overcoat without reaching the solubility threshold of the relief pattern, diffusing the solubility-shifting agent a predetermined distance from structures of the relief pattern into the overcoat to form soluble regions in the overcoat, and developing the substrate with the developer to remove the soluble regions of the overcoat.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: September 5, 2023
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Michael Murphy, Charlotte Cutler
  • Patent number: 11656550
    Abstract: In certain embodiments, a method for processing a semiconductor substrate includes depositing a resin film on a substrate that has microfabricated structures defining recesses. The resin film fills the recesses and covers the microfabricated structures. The method includes performing, using a photoacid generator (PAG)-based process, a localized removal of the resin film to remove the resin film to respective first depths in the recesses, at least two depths of the respective first depths being different depths. The method includes repeatedly performing, using a thermal acid generator (TAG)-based process and until a predetermined condition is met, a uniform removal of a remaining portion of the resin film to remove a substantially uniform depth of the resin film in the recesses.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: May 23, 2023
    Assignee: Tokyo Electron Limited
    Inventors: Daniel Fulford, Michael Murphy, Jodi Grzeskowiak, Jeffrey Smith
  • Patent number: 11658027
    Abstract: A method of manufacturing a semiconductor device includes: forming, on or above a GaN-based semiconductor layer, an electron beam resist containing chlorine; forming, in the electron beam resist, a first opening that exposes a portion of a surface of the semiconductor layer; forming a film of a shrink agent that covers a sidewall surface of the first opening; and forming, in a state in which the sidewall surface is covered by the film of the shrink agent, a Ni film that contacts the semiconductor layer through the first opening.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: May 23, 2023
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventor: Takahide Hirasaki
  • Patent number: 10241581
    Abstract: This document describes techniques for radio frequency (RF) based micro-motion tracking. These techniques enable even millimeter-scale hand motions to be tracked. To do so, radar signals are used from radar systems that, with conventional techniques, would only permit resolutions of a centimeter or more.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: March 26, 2019
    Assignees: Google LLC, The Board of Trustees of the Lealand Stanford Junior University
    Inventors: Jaime Lien, Erik M. Olson, Patrick M. Amihood, Ivan Poupyrev
  • Patent number: 10209837
    Abstract: According to one embodiment, a display device comprises pixel electrodes formed in a display area, drive electrodes opposed to the pixel electrodes, first and second line groups formed in a non-display area, a first switch configured to apply a voltage for display or a drive signal to the drive electrodes, and a scanner configured to control the first switch. In the above structure, the first and second line groups are disposed with a space between the first line group and the second line group, and at least a part of the scanner is disposed in the space between the first line group and the second line group.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: February 19, 2019
    Assignee: Japan Display Inc.
    Inventors: Toshiaki Fukushima, Hiroshi Mizuhashi
  • Patent number: 10198092
    Abstract: According to various exemplary embodiments, there may be provided an electronic device including a housing having a first side and an opposite second side, a display disposed between the first side and the second side, an ElectroMagnetic Resonance (EMR) sensor pad disposed between the display and the second side, a pen placing space disposed between the first side and the second side to accommodate an electronic pen, and a detecting member disposed in vicinity of the electronic pen for detecting the electronic pen when the electronic pen is fully inserted into the pen placing space.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: February 5, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Myeong Sil Park, Joohoon Lee
  • Patent number: 10198237
    Abstract: A display device and a method of driving the same are provided. The display device includes a drive circuit and at least two display units, the drive circuit drives one or at least two display units to display a required image.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: February 5, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Lan Feng