Patents by Inventor Ching-Han Chang

Ching-Han Chang 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).

  • Patent number: 11955336
    Abstract: Method of manufacturing a semiconductor device, includes forming a protective layer over substrate having a plurality of protrusions and recesses. The protective layer includes polymer composition including polymer having repeating units of one or more of: Wherein a, b, c, d, e, f, g, h, and i are each independently H, —OH, —ROH, —R(OH)2, —NH2, —NHR, —NR2, —SH, —RSH, or —R(SH)2, wherein at least one of a, b, c, d, e, f, g, h, and i on each repeating unit is not H. R, R1, and R2 are each independently a C1-C10 alkyl group, a C3-C10 cycloalkyl group, a C1-C10 hydroxyalkyl group, a C2-C10 alkoxy group, a C2-C10 alkoxy alkyl group, a C2-C10 acetyl group, a C3-C10 acetylalkyl group, a C1-C10 carboxyl group, a C2-C10 alkyl carboxyl group, or a C4-C10 cycloalkyl carboxyl group, and n is 2-1000. A resist layer is formed over the protective layer, and the resist layer is patterned.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: April 9, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Jing Hong Huang, Wei-Han Lai, Ching-Yu Chang
  • Patent number: 11938272
    Abstract: The present invention discloses a respiratory mask to connect a user and a breathing tube for receiving a first gas and releasing a second gas, so as to provide an user's respiratory system to exchange gas. It comprises a main part, an air chamber exchange part, an insert and a clamping part. The main part provides a first, second, and third openings that are communicated each other. The first opening connects to the breathing tube to receive the first gas from the breathing tube. The air chamber exchange part provides an exhaust assembly to relieve pressure according to an internal air pressure of the air chamber exchange part. The insert connects to the user's nose so as to direct the first gas to the user or direct the second gas from the user to the air chamber exchange part. The clamping part connects to the user's mouth.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: March 26, 2024
    Assignee: MACKAY MEMORIAL HOSPITAL
    Inventors: Wen-Han Chang, Shih-Yi Lee, Ren-Jei Chung, Ching-Yu Kuo
  • Publication number: 20240096623
    Abstract: A method of manufacturing a semiconductor device includes forming a first layer comprising an organic material over a substrate. A second layer is formed over the first layer, wherein the second layer includes a silicon-containing material and one or more selected from the group consisting of a photoacid generator, an actinic radiation absorbing additive including an iodine substituent, and a silicon-containing monomer having iodine or phenol group substituents. A photosensitive layer is formed over the second layer, and the photosensitive layer is patterned.
    Type: Application
    Filed: March 17, 2023
    Publication date: March 21, 2024
    Inventors: Chieh-Hsin HSIEH, Wei-Han LAI, Ching-Yu CHANG
  • Publication number: 20240099154
    Abstract: A magnetoresistive random access memory (MRAM) device includes a first array region and a second array region on a substrate, a first magnetic tunneling junction (MTJ) on the first array region, a first top electrode on the first MTJ, a second MTJ on the second array region, and a second top electrode on the second MTJ. Preferably, the first top electrode and the second top electrode include different nitrogen to titanium (N/Ti) ratios.
    Type: Application
    Filed: November 21, 2023
    Publication date: March 21, 2024
    Applicant: UNITED MICROELECTRONICS CORP
    Inventors: Hui-Lin Wang, Si-Han Tsai, Dong-Ming Wu, Chen-Yi Weng, Ching-Hua Hsu, Ju-Chun Fan, Yi-Yu Lin, Che-Wei Chang, Po-Kai Hsu, Jing-Yin Jhang
  • Patent number: 11935757
    Abstract: A method of manufacturing a semiconductor device includes forming a first layer of a first planarizing material over a patterned surface of a substrate, forming a second layer of a second planarizing material over the first planarizing layer, crosslinking a portion of the first planarizing material and a portion of the second planarizing material, and removing a portion of the second planarizing material that is not crosslinked. In an embodiment, the method further includes forming a third layer of a third planarizing material over the second planarizing material after removing the portion of the second planarizing material that is not crosslinked. The third planarizing material can include a bottom anti-reflective coating or a spin-on carbon, and an acid or an acid generator. The first planarizing material can include a spin-on carbon, and an acid, a thermal acid generator or a photoacid generator.
    Type: Grant
    Filed: April 10, 2023
    Date of Patent: March 19, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Yen-Hao Chen, Wei-Han Lai, Ching-Yu Chang, Chin-Hsiang Lin
  • Publication number: 20240077802
    Abstract: A method of forming a photoresist pattern includes forming a protective layer over a photoresist layer formed on a substrate. The protective layer and the photoresist layer are selectively exposed to actinic radiation. The photoresist layer is developed to form a pattern in the photoresist layer. The protective layer includes a polymer without a nitrogen-containing moiety, and a basic quencher, an organic acid, a photoacid generator, or a thermal acid generator.
    Type: Application
    Filed: August 7, 2023
    Publication date: March 7, 2024
    Inventors: Yu-Chung SU, Tsung-Han KO, Ching-Yu CHANG
  • Patent number: 11917923
    Abstract: A magnetoresistive random access memory (MRAM) structure, including a substrate and multiple MRAM cells on the substrate, wherein the MRAM cells are arranged in a memory region adjacent to a logic region. An ultra low-k (ULK) layer covers the MRAM cells, wherein the surface portion of ultra low-k layer is doped with fluorine, and dents are formed on the surface of ultra low-k layer at the boundaries between the memory region and the logic region.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: February 27, 2024
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Hui-Lin Wang, Ching-Hua Hsu, Si-Han Tsai, Shun-Yu Huang, Chen-Yi Weng, Ju-Chun Fan, Che-Wei Chang, Yi-Yu Lin, Po-Kai Hsu, Jing-Yin Jhang, Ya-Jyuan Hung
  • Patent number: 11914301
    Abstract: A photoresist includes a polymer and a photoactive compound. The photoactive compound contains a sensitizer component. The photoactive compound contains an acid generator or a base molecular. The acid generator or the base molecular bonds the sensitizer component. The photoactive compound is within a polymer backbone. The sensitizer component is configured to absorb an EUV light to produce electrons.
    Type: Grant
    Filed: July 16, 2021
    Date of Patent: February 27, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chieh-Hsin Hsieh, Wei-Han Lai, Ching-Yu Chang
  • Patent number: 11819991
    Abstract: A retaining device adapted for use with an electric nail gun includes a retaining member; a swing arm unit adapted to swing between a proximate position and a distal position with respect to a flywheel of the nail gun; an impact unit movably connected to the swing arm unit, including an engaging portion, and being movable between a pre-striking position, where the engaging portion is confined within the retaining member when the swing arm unit is at the distal position, and a striking position, where the engaging portion is removed from the retaining member; and a retrieving unit connected between the impact unit and the swing arm unit, and configured to bias the impact unit to move to the pre-striking position.
    Type: Grant
    Filed: November 23, 2021
    Date of Patent: November 21, 2023
    Assignee: Basso Industry Corp.
    Inventors: Chia-Yu Chien, Ching-Han Chang
  • Publication number: 20230293011
    Abstract: A non-contact vital-sign monitoring system having a radar disposed in vicinity of a monitored subject includes a data buffer storing output signals of the radar sampled in sequence during a predetermined period; a status classifier determining status of the monitored subject; and a vital-sign detector determining a vital sign of the monitored subject according to the output signals of stationary status.
    Type: Application
    Filed: May 23, 2023
    Publication date: September 21, 2023
    Inventors: Sheng-Lun Chiou, Yin-Yu Chen, Fang-Ming Wu, Ching-Han Chang
  • Patent number: 11738431
    Abstract: A retaining device adapted for use with an electric nail gun includes: a swing arm unit adapted to swing relative to a flywheel of the nail gun; an impact unit adapted to swing with the swing arm unit, and being movable between a pre-striking position proximate to the flywheel, and a striking position distal from the flywheel; a retrieving unit configured to bias the impact unit to move to the pre-striking position; and first and second positioning members connected respectively to the swing arm unit and the impact unit, and magnetically attracted to each other to prohibit removal of the impact unit from the pre-striking position when the impact unit is at the pre-striking position.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: August 29, 2023
    Assignee: Basso Industry Corp.
    Inventors: Chia-Yu Chien, Ching-Han Chang, Tsu-Yu Cho
  • Patent number: 11707826
    Abstract: A retaining device adapted for use with an electric nail gun includes: a swing arm unit adapted to swing relative to a flywheel of the nail gun; an impact unit adapted to swing with the swing arm unit, and being movable between a pre-striking position proximate to the flywheel, and a striking position distal from the flywheel; a retrieving unit configured to bias the impact unit to move to the pre-striking position; and first and second positioning members connected respectively to the swing arm unit and the impact unit, and telescopically engaged with and in frictional contact with each other when the impact unit is at the pre-striking position, so as to position the impact unit on the swing arm unit.
    Type: Grant
    Filed: January 11, 2022
    Date of Patent: July 25, 2023
    Assignee: Basso Industry Corp.
    Inventors: Chia-Yu Chien, Ching-Han Chang
  • Publication number: 20220219302
    Abstract: A retaining device adapted for use with an electric nail gun includes: a swing arm unit adapted to swing relative to a flywheel of the nail gun; an impact unit adapted to swing with the swing arm unit, and being movable between a pre-striking position proximate to the flywheel, and a striking position distal from the flywheel; a retrieving unit configured to bias the impact unit to move to the pre-striking position; and first and second positioning members connected respectively to the swing arm unit and the impact unit, and telescopically engaged with and in frictional contact with each other when the impact unit is at the pre-striking position, so as to position the impact unit on the swing arm unit.
    Type: Application
    Filed: January 11, 2022
    Publication date: July 14, 2022
    Applicant: BASSO INDUSTRY CORP.
    Inventors: Chia-Yu CHIEN, Ching-Han CHANG
  • Publication number: 20220176531
    Abstract: A retaining device adapted for use with an electric nail gun includes: a swing arm unit adapted to swing relative to a flywheel of the nail gun; an impact unit adapted to swing with the swing arm unit, and being movable between a pre-striking position proximate to the flywheel, and a striking position distal from the flywheel; a retrieving unit configured to bias the impact unit to move to the pre-striking position; and first and second positioning members connected respectively to the swing arm unit and the impact unit, and magnetically attracted to each other to prohibit removal of the impact unit from the pre-striking position when the impact unit is at the pre-striking position.
    Type: Application
    Filed: December 6, 2021
    Publication date: June 9, 2022
    Applicant: BASSO INDUSTRY CORP.
    Inventors: Chia-Yu CHIEN, Ching-Han CHANG, Tsu-Yu CHO
  • Publication number: 20220161405
    Abstract: A retaining device adapted for use with an electric nail gun includes a retaining member; a swing arm unit adapted to swing between a proximate position and a distal position with respect to a flywheel of the nail gun; an impact unit movably connected to the swing arm unit, including an engaging portion, and being movable between a pre-striking position, where the engaging portion is confined within the retaining member when the swing arm unit is at the distal position, and a striking position, where the engaging portion is removed from the retaining member; and a retrieving unit connected between the impact unit and the swing arm unit, and configured to bias the impact unit to move to the pre-striking position.
    Type: Application
    Filed: November 23, 2021
    Publication date: May 26, 2022
    Applicant: BASSO INDUSTRY CORP.
    Inventors: Chia-Yu CHIEN, Ching-Han CHANG
  • Publication number: 20210141825
    Abstract: The present teaching relates to a method, system, and programming for searching content. A sketch of an object is obtained from a user. The sketch is processed by a neural network to generate an image corresponding to the sketch of the object. One or more features are extracted from the image, and one or more images previously stored are identified that have features similar to the one or more features. The one or more images are provided to the user.
    Type: Application
    Filed: November 12, 2019
    Publication date: May 13, 2021
    Inventors: Wei-Lun Su, Wen-Hsuan Wu, Ching-Han Chang, Tzu-Chiang Liou
  • Patent number: 10845697
    Abstract: A transparent film is used with a projector which emits a projected light. The transparent film includes a transparent substrate; a light-scattering layer disposed at an upstream position of the transparent substrate with respect to the projected light, and including a plurality of microstructures configured to scatter the projected light; and a light-blocking layer disposed at an upstream position of the light-scattering layer with respect to the projected light, and including a plurality of separate light-blocking units, which are configured to partially block the projected light and partially allow the projected light to reach the light-scattering layer.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: November 24, 2020
    Assignee: BJ TEK CORPORATION
    Inventors: He-Yuan Jiang, Hsiu-Cheng Chang, Ching-Han Chang
  • Publication number: 20200196866
    Abstract: A non-contact vital-sign monitoring system having a radar disposed in vicinity of a monitored subject includes a data buffer storing output signals of the radar sampled in sequence during a predetermined period; a status classifier determining status of the monitored subject; and a vital-sign detector determining a vital sign of the monitored subject according to the output signals of stationary status.
    Type: Application
    Filed: February 20, 2019
    Publication date: June 25, 2020
    Inventors: Sheng-Lun Chiou, Yin-Yu Chen, Fang-Ming Wu, Ching-Han Chang
  • Publication number: 20200192211
    Abstract: A transparent film is used with a projector which emits a projected light. The transparent film includes a transparent substrate; a light-scattering layer disposed at an upstream position of the transparent substrate with respect to the projected light, and including a plurality of microstructures configured to scatter the projected light; and a light-blocking layer disposed at an upstream position of the light-scattering layer with respect to the projected light, and including a plurality of separate light-blocking units, which are configured to partially block the projected light and partially allow the projected light to reach the light-scattering layer.
    Type: Application
    Filed: December 10, 2019
    Publication date: June 18, 2020
    Inventors: HE-YUAN JIANG, HSIU-CHENG CHANG, CHING-HAN CHANG
  • Publication number: 20190204380
    Abstract: An embodiment includes a first lead guide, a second lead guide, and a handler. The first lead guide includes a first insulating housing and a first conductive contact having a face and a recessed face. The second lead guide includes a second insulating housing and a second conductive contact. The first and second lead guides are fastened to the handler.
    Type: Application
    Filed: January 24, 2018
    Publication date: July 4, 2019
    Inventors: Chi-Tsung LEE, Ching-Han CHANG, Chun-Hsien LU