Patents by Inventor Yi-Chen Lo

Yi-Chen Lo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20260165059
    Abstract: In a method of forming a pattern over a semiconductor substrate, a target layer to be patterned is formed over a substrate, a mask pattern including an opening is formed in a mask layer, a shifting film is formed in an inner sidewall of the opening, a one-directional etching operation is performed to remove a part of the shifting film and a part of the mask layer to form a shifted opening, and the target layer is patterned by using the mask layer with the shifted opening as an etching mask. A location of the shifted opening is laterally shifted from an original location of the opening.
    Type: Application
    Filed: April 14, 2025
    Publication date: June 11, 2026
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yi-Chen LO, Yi-Shan CHEN, Chih-Kai YANG, Pinyen LIN
  • Patent number: 12652999
    Abstract: An apparatus includes a supporting frame, a platform supported by the supporting frame and having a first side and a second side opposite to the first side, and at least three robot fingers which are mounted to the supporting frame, and which are angularly displaced from each other. Each of the robot fingers has a fingertip configured to retain a substrate on the first side of the platform such that the substrate is spaced apart from the platform. A method for manufacturing a semiconductor structure using the apparatus is also disclosed.
    Type: Grant
    Filed: January 18, 2023
    Date of Patent: June 9, 2026
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chia-Yun Cheng, Kenichi Sano, Yu-Wei Lu, Yi-Chen Lo
  • Patent number: 12622043
    Abstract: A semiconductor device includes first and second gate structures over a substrate, the first gate structure has a first width that is smaller than a second width of the second gate structure, in which a lower portion of the first gate structure having a first work-function material (WFM) layer, the first WFM layer having a top surface, a lower portion of the second gate structure having a second WFM layer, the second WFM layer having a top surface. A first gate electrode is disposed over the first WFM layer and a second gate electrode has a lower portion disposed in the second WFM layer, in which the first gate electrode has a first width that is smaller than a second width of the second gate electrode, and wherein the top surface of the second WFM layer is at a level below a top surface of the second gate electrode.
    Type: Grant
    Filed: November 3, 2023
    Date of Patent: May 5, 2026
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Yi-Chen Lo, Jung-Hao Chang, Li-Te Lin, Pinyen Lin
  • Patent number: 12598937
    Abstract: In an embodiment, a method includes forming a first semiconductor fin and a second semiconductor fin over a front-side of a substrate; etching a first recess in the first semiconductor fin and a second recess in the second semiconductor fin; forming a first epitaxial region in the first recess and first epitaxial nodules along sidewalls of the first recess; forming a second epitaxial region in the second recess and second epitaxial nodules along sidewalls of the second recess; flowing first precursors to remove the first epitaxial nodules; depositing an interlayer dielectric over the first epitaxial region and the second epitaxial region; etching a first opening in the interlayer dielectric to expose the first epitaxial region; forming a first epitaxial cap on the first epitaxial region and third epitaxial nodules over the interlayer dielectric; and flowing second precursors to remove the third epitaxial nodules.
    Type: Grant
    Filed: February 20, 2023
    Date of Patent: April 7, 2026
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Yi-Chen Lo, Ding-Kang Shih, Tsungyu Hung, Chia-Ling Pai, Pang-Yen Tsai, Li-Te Lin, Pinyen Lin
  • Patent number: 12495594
    Abstract: The present disclosure describes a semiconductor device having a protection layer on inner spacer structures. The semiconductor device includes a nanostructure on a substrate. The nanostructure includes multiple semiconductor layers. The semiconductor device further includes a gate structure wrapped around a middle portion of the multiple semiconductor layers and a spacer structure adjacent to an end portion of the multiple semiconductor layers. The gate structure includes a high-k dielectric layer. The semiconductor device further includes a protection layer between the high-k dielectric layer and the spacer structure.
    Type: Grant
    Filed: May 6, 2022
    Date of Patent: December 9, 2025
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventor: Yi-Chen Lo
  • Publication number: 20250366132
    Abstract: The present disclosure describes a semiconductor device having a protection layer on inner spacer structures. The semiconductor device includes a nanostructure on a substrate. The nanostructure includes multiple semiconductor layers. The semiconductor device further includes a gate structure wrapped around a middle portion of the multiple semiconductor layers and a spacer structure adjacent to an end portion of the multiple semiconductor layers. The gate structure includes a high-k dielectric layer. The semiconductor device further includes a protection layer between the high-k dielectric layer and the spacer structure.
    Type: Application
    Filed: August 7, 2025
    Publication date: November 27, 2025
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventor: Yi-Chen LO
  • Publication number: 20250359218
    Abstract: Various embodiments provide a method for forming a semiconductor device structure, including forming a stack of semiconductor layers over a substrate, the stack includes first and second semiconductor layers alternatingly stacked, forming a fin structure from the stack, forming a sacrificial gate structure and a gate spacer over the fin structure, removing portions of the fin structure and edge portions of the second semiconductor layers, forming a cap layer on exposed surfaces of the first and second semiconductor layers, forming an inner spacer on the cap layer, forming a source/drain feature on opposite sides of the sacrificial gate structure and contacting the inner spacer, removing the sacrificial gate structure and the second semiconductor layers to expose portions of the first semiconductor layers and the cap layer, removing a portion of the cap layer to expose the inner spacer, and forming a gate electrode layer to surround the first semiconductor layers.
    Type: Application
    Filed: July 31, 2025
    Publication date: November 20, 2025
    Inventor: Yi-Chen LO
  • Publication number: 20250344499
    Abstract: In an embodiment, a device includes: lower semiconductor nanostructures including a first semiconductor material; a lower epitaxial source/drain region adjacent the lower semiconductor nanostructures, the lower epitaxial source/drain region having a first conductivity type; upper semiconductor nanostructures including a second semiconductor material, the second semiconductor material different from the first semiconductor material; and an upper epitaxial source/drain region adjacent the upper semiconductor nanostructures, the upper epitaxial source/drain region having a second conductivity type, the second conductivity type being opposite the first conductivity type.
    Type: Application
    Filed: July 15, 2025
    Publication date: November 6, 2025
    Inventors: Yu-Wei Lu, Kenichi Sano, Tze-Chung Lin, Fang-Wei Lee, Chia-Chien Kuang, Yi-Chen Lo, Fo-Ju Lin, Li-Te Lin, Pinyen Lin
  • Publication number: 20250280582
    Abstract: The present disclosure describes a semiconductor structure and a method for forming the same. The semiconductor structure can include a substrate, a fin structure over the substrate, a gate structure over the fin structure, a first inner spacer layer formed in the fin structure and adjacent to the gate structure, and a second inner spacer layer extending through the first inner spacer layer.
    Type: Application
    Filed: May 15, 2025
    Publication date: September 4, 2025
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventor: Yi-Chen Lo
  • Publication number: 20250220942
    Abstract: A method is provided. The method includes forming a plurality of stacks of semiconductor layers. Each of the stacks includes a plurality of first semiconductor layers and a plurality of second layers alternately stacked with each other. A gate electrode structure is then formed on each of the stacks of semiconductor layers, each of the gate electrode structures including a gate spacer. An epitaxial layer is formed in an opening between each pair of neighboring stacks of semiconductor layers. After formation of the epitaxial layer, oxygen ion beams are applied to the gate spacer with a tilt angle to form oxidized materials on the gate spacers with a tilt angle. The oxidized materials are then removed by diluted HF solution.
    Type: Application
    Filed: January 2, 2024
    Publication date: July 3, 2025
    Inventors: Yi-Chen LO, Ding-Kang SHIH, Chia-Yun CHENG, Yu-Wei LU
  • Publication number: 20250215469
    Abstract: The present invention provides a method for producing sesaminol or sesaminol glucosides comprising: reacting a protein with a substrate sesaminol glycoside having at least one glycosidic bond, and catalyzing the hydrolysis of the glycosidic bond; wherein, the protein is selected from the group consisting of the following (1) to (3): (1) a protein composed of the amino acid sequence SEQ ID NO: 1; (2) a protein composed of the amino acid sequence formed by deletion, substitution, insertion and/or addition of one or more amino acids in the amino acid sequence SEQ ID NO:1, wherein the protein has the activity of catalyzing the hydrolysis of the glycosidic bond; (3) a protein composed of an amino acid sequence having an sequence identity of more than 60% compared with the amino acid sequence of SEQ ID NO: 1, wherein the protein has the activity of catalyzing the hydrolysis of the glycosidic bond.
    Type: Application
    Filed: December 27, 2024
    Publication date: July 3, 2025
    Inventors: NAN-WEI SU, YI-CHEN LO, CHANG-HUNG CHEN, CHAO-YANG HSU
  • Patent number: 12324209
    Abstract: The present disclosure describes a semiconductor structure and a method for forming the same. The semiconductor structure can include a substrate, a fin structure over the substrate, a gate structure over the fin structure, a first inner spacer layer formed in the fin structure and adjacent to the gate structure, and a second inner spacer layer extending through the first inner spacer layer.
    Type: Grant
    Filed: April 28, 2023
    Date of Patent: June 3, 2025
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventor: Yi-Chen Lo
  • Patent number: 12300506
    Abstract: In a method of forming a pattern over a semiconductor substrate, a target layer to be patterned is formed over a substrate, a mask pattern including an opening is formed in a mask layer, a shifting film is formed in an inner sidewall of the opening, a one-directional etching operation is performed to remove a part of the shifting film and a part of the mask layer to form a shifted opening, and the target layer is patterned by using the mask layer with the shifted opening as an etching mask. A location of the shifted opening is laterally shifted from an original location of the opening.
    Type: Grant
    Filed: March 15, 2024
    Date of Patent: May 13, 2025
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Yi-Chen Lo, Yi-Shan Chen, Chih-Kai Yang, Pinyen Lin
  • Publication number: 20250105019
    Abstract: A method is provided. The method includes: receiving a semiconductor structure having a first material and a second material; performing a first etch on the first material for a first duration under a first etching chemistry; and performing a second etch on the second material for a second duration under a second etching chemistry, wherein the first material includes a first incubation time and the second material includes a second incubation time greater than the first incubation time under the first etching chemistry. The first material includes a third incubation time and the second material includes a fourth incubation time less than the third incubation time under the second etching chemistry.
    Type: Application
    Filed: December 10, 2024
    Publication date: March 27, 2025
    Inventors: HAN-YU LIN, LI-TE LIN, TZE-CHUNG LIN, FANG-WEI LEE, YI-LUN CHEN, JUNG-HAO CHANG, YI-CHEN LO, FO-JU LIN, KENICHI SANO, PINYEN LIN
  • Publication number: 20250040238
    Abstract: In an embodiment, a device includes: lower semiconductor nanostructures including a first semiconductor material; a lower epitaxial source/drain region adjacent the lower semiconductor nanostructures, the lower epitaxial source/drain region having a first conductivity type; upper semiconductor nanostructures including a second semiconductor material, the second semiconductor material different from the first semiconductor material; and an upper epitaxial source/drain region adjacent the upper semiconductor nanostructures, the upper epitaxial source/drain region having a second conductivity type, the second conductivity type being opposite the first conductivity type.
    Type: Application
    Filed: July 28, 2023
    Publication date: January 30, 2025
    Inventors: Yu-Wei Lu, Kenichi Sano, Tze-Chung Lin, Fang-Wei Lee, Chia-Chien Kuang, Yi-Chen Lo, Fo-Ju Lin, Li-Te Lin, Pinyen Lin
  • Patent number: 12198939
    Abstract: A technique for semiconductor manufacturing is provided. The technique includes the operations as follows. A semiconductor structure having a first material is received. A plurality of first main etches are performed to the semiconductor structure for a plurality of first durations under the first etching chemistry. A plurality of pumping operations are performed for a plurality of pumping durations, each of the pumping operations being prior to each of the first main etches. Each of the first durations is in a range of from about 1 second to about 2.5 seconds.
    Type: Grant
    Filed: June 24, 2022
    Date of Patent: January 14, 2025
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventors: Han-Yu Lin, Li-Te Lin, Tze-Chung Lin, Fang-Wei Lee, Yi-Lun Chen, Jung-Hao Chang, Yi-Chen Lo, Fo-Ju Lin, Kenichi Sano, Pinyen Lin
  • Patent number: 12079306
    Abstract: A contrastive learning method for color constancy employs a fully-supervised construction of contrastive pairs, driven by a novel data augmentation. The contrastive learning method includes receiving two training images, constructing positive and negative contrastive pairs by the novel data augmentation, extracting representations by a feature extraction function, and training a color constancy model by contrastive learning representations in the positive contrastive pair are closer than representations in the negative contrastive pair. The positive contrastive pair contains images having an identical illuminant while negative contrastive pair contains images having different illuminants. The contrastive learning method improves the performance without additional computational costs. The desired contrastive pairs allow the color constancy model to learn better illuminant feature that are particular robust to worse-cases in data sparse regions.
    Type: Grant
    Filed: November 18, 2021
    Date of Patent: September 3, 2024
    Assignee: MEDIATEK INC.
    Inventors: Yi-Chen Lo, Chia-Che Chang
  • Publication number: 20240282569
    Abstract: In an embodiment, a method includes forming a first semiconductor fin and a second semiconductor fin over a front-side of a substrate; etching a first recess in the first semiconductor fin and a second recess in the second semiconductor fin; forming a first epitaxial region in the first recess and first epitaxial nodules along sidewalls of the first recess; forming a second epitaxial region in the second recess and second epitaxial nodules along sidewalls of the second recess; flowing first precursors to remove the first epitaxial nodules; depositing an interlayer dielectric over the first epitaxial region and the second epitaxial region; etching a first opening in the interlayer dielectric to expose the first epitaxial region; forming a first epitaxial cap on the first epitaxial region and third epitaxial nodules over the interlayer dielectric; and flowing second precursors to remove the third epitaxial nodules.
    Type: Application
    Filed: February 20, 2023
    Publication date: August 22, 2024
    Inventors: Yi-Chen Lo, Ding-Kang Shih, Tsungyu Hung, Chia-Ling Pai, Pang-Yen Tsai, Li-Te Lin, Pinyen Lin
  • Publication number: 20240243001
    Abstract: An apparatus includes a supporting frame, a platform supported by the supporting frame and having a first side and a second side opposite to the first side, and at least three robot fingers which are mounted to the supporting frame, and which are angularly displaced from each other. Each of the robot fingers has a fingertip configured to retain a substrate on the first side of the platform such that the substrate is spaced apart from the platform. A method for manufacturing a semiconductor structure using the apparatus is also disclosed.
    Type: Application
    Filed: January 18, 2023
    Publication date: July 18, 2024
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chia-Yun CHENG, Kenichi SANO, Yu-Wei LU, Yi-Chen LO
  • Publication number: 20240222134
    Abstract: In a method of forming a pattern over a semiconductor substrate, a target layer to be patterned is formed over a substrate, a mask pattern including an opening is formed in a mask layer, a shifting film is formed in an inner sidewall of the opening, a one-directional etching operation is performed to remove a part of the shifting film and a part of the mask layer to form a shifted opening, and the target layer is patterned by using the mask layer with the shifted opening as an etching mask. A location of the shifted opening is laterally shifted from an original location of the opening.
    Type: Application
    Filed: March 15, 2024
    Publication date: July 4, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yi-Chen LO, Yi-Shan CHEN, Chih-Kai YANG, Pinyen LIN