Patents by Inventor Kuo Hui Chang

Kuo Hui 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).

  • Publication number: 20240096917
    Abstract: An image sensor structure includes a semiconductor substrate, a plurality of image sensing elements, a reflective element, and a high-k dielectric structure. The image sensing elements are in the semiconductor substrate. The reflective element is in the semiconductor substrate and between the image sensing elements. The high-k dielectric structure is between the reflective element and the image sensing elements.
    Type: Application
    Filed: January 6, 2023
    Publication date: March 21, 2024
    Inventors: PO CHUN CHANG, PING-HAO LIN, WEI-LIN CHEN, KUN-HUI LIN, KUO-CHENG LEE
  • Publication number: 20240055280
    Abstract: A method of removing a sacrificial substructure from a support structure is disclosed. The method includes receiving the support structure, where the support structure has the sacrificial substructure connected thereto, the sacrificial substructure having functioning electrical devices removed therefrom. The method also includes applying a barrier to the sacrificial substructure, puncturing the sacrificial substructure with a puncture plate to secure the sacrificial substructure to the puncture plate, and detaching the sacrificial substructure from the support structure by moving the puncture plate with respect to the support structure.
    Type: Application
    Filed: August 11, 2022
    Publication date: February 15, 2024
    Inventors: Chen Liang Chang, Kuo Hui Chang, Ryder Su, Chi-Chun Peng
  • Publication number: 20240047255
    Abstract: A wafer alignment assembly is provided. The wafer alignment assembly includes: a first tapered wall extending in a first horizontal direction; a first spring wall attached to an inner surface of the first tapered wall; a first set of conveyor rollers configured to rotate; a second tapered wall extending in the first horizontal direction, wherein the first tapered wall and the second tapered wall are characterized by a tapered shape that facilitates entry of a wafer assembly; a second spring wall attached to an inner surface of the first tapered wall; and a second set of conveyor rollers configured to rotate.
    Type: Application
    Filed: August 4, 2022
    Publication date: February 8, 2024
    Inventors: Chia-Ching Lee, Tung-Hsuan Tsai, Hsin-Tai Wang, Chen Liang Chang, Kuo Hui Chang, Chi-Chun Peng
  • Publication number: 20240038571
    Abstract: At least one embodiment, a vacuum chuck includes a moisture gate structure that allows for moisture to escape to reduce an amount of warpage in a workpiece when present on the vacuum chuck. The moisture gate structure includes a base portion that extends laterally outward from a central vacuum portion of the vacuum chuck, and a plurality of protrusions are spaced apart from the central vacuum portion and extend outward from the base portion. End surfaces of the plurality of protrusions contact a backside surface of the workpiece (e.g., a wafer on a carrier) when the workpiece is present on the vacuum chuck. The vacuum chuck may further include one or more guide portions that act as guides such that the workpiece remains properly aligned and within position when present on the vacuum chuck.
    Type: Application
    Filed: July 28, 2022
    Publication date: February 1, 2024
    Inventors: Po-Yo SU, Young-Wei LIN, Yu Liang HUANG, Chia-Ching LEE, Chi-Chun PENG, Chen Liang CHANG, Kuo Hui CHANG
  • Publication number: 20230369152
    Abstract: A package includes a die, first conductive structures, second conductive structures, and an encapsulant. The die has a rear surface. The first conductive structures and the second conductive structures surround the die. The first conductive structures include cylindrical columns and the second conductive structures include elliptical columns. At least one of the second conductive structures is closer to the die than the first conductive structures. The encapsulant encapsulates the die, the first conductive structures, and the second conductive structures.
    Type: Application
    Filed: July 21, 2023
    Publication date: November 16, 2023
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Sheng-Huan Chiu, Chun-Jen Chen, Chen-Shien Chen, Kuo-Chio Liu, Kuo-Hui Chang, Chung-Yi Lin, Hsi-Kuei Cheng, Yi-Jen Lai
  • Patent number: 11756849
    Abstract: A package includes a die, first conductive structures, second conductive structures, an encapsulant, and a redistribution structure. The die has an active surface and a rear surface opposite to the active surface. The first conductive structures and the second conductive structures surround the die. A shape of the first conductive structures is different a shape of the second conductive structures. The second conductive structures include elliptical columns having straight sidewalls. A distance between the first conductive structure that is closest to the die and the die is greater than a distance between the second conductive structure that is closest to the die and the die. The encapsulant encapsulates the die, the first conductive structures, and the second conductive structures. The redistribution structure is over the die and the encapsulant. The redistribution structure is electrically connected to the die, the first conductive structures, and the second conductive structures.
    Type: Grant
    Filed: June 8, 2022
    Date of Patent: September 12, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Sheng-Huan Chiu, Chun-Jen Chen, Chen-Shien Chen, Kuo-Chio Liu, Kuo-Hui Chang, Chung-Yi Lin, Hsi-Kuei Cheng, Yi-Jen Lai
  • Publication number: 20220359726
    Abstract: Structures and formation methods of a semiconductor device structure are provided. The semiconductor device structure includes a gate stack over a semiconductor substrate and a cap element over the gate stack. The cap element has an upper portion and a lower portion, and the upper portion is wider than the lower portion. The semiconductor device structure also includes a spacer element over a sidewall of the cap element and a sidewall of the gate stack.
    Type: Application
    Filed: July 25, 2022
    Publication date: November 10, 2022
    Inventors: Po-Chi Wu, Chai-Wei Chang, Kuo-Hui Chang, Yi-Cheng Chao
  • Publication number: 20220301964
    Abstract: A package includes a die, first conductive structures, second conductive structures, an encapsulant, and a redistribution structure. The die has an active surface and a rear surface opposite to the active surface. The first conductive structures and the second conductive structures surround the die. A shape of the first conductive structures is different a shape of the second conductive structures. The second conductive structures include elliptical columns having straight sidewalls. A distance between the first conductive structure that is closest to the die and the die is greater than a distance between the second conductive structure that is closest to the die and the die. The encapsulant encapsulates the die, the first conductive structures, and the second conductive structures. The redistribution structure is over the die and the encapsulant. The redistribution structure is electrically connected to the die, the first conductive structures, and the second conductive structures.
    Type: Application
    Filed: June 8, 2022
    Publication date: September 22, 2022
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Sheng-Huan Chiu, Chun-Jen Chen, Chen-Shien Chen, Kuo-Chio Liu, Kuo-Hui Chang, Chung-Yi Lin, Hsi-Kuei Cheng, Yi-Jen Lai
  • Patent number: 11444176
    Abstract: Structures and formation methods of a semiconductor device structure are provided. The semiconductor device structure includes a gate stack over a semiconductor substrate and a cap element over the gate stack. The cap element has an upper portion and a lower portion, and the upper portion is wider than the lower portion. The semiconductor device structure also includes a spacer element over a sidewall of the cap element and a sidewall of the gate stack.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: September 13, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Po-Chi Wu, Chai-Wei Chang, Kuo-Hui Chang, Yi-Cheng Chao
  • Patent number: 11404341
    Abstract: A package includes a die, a plurality of conductive structures, an encapsulant, and a redistribution structure. The die has an active surface and a rear surface opposite to the active surface. The conductive structures surround the die. The conductive structures include elliptical columns. The encapsulant encapsulates the die and the conductive structures. The redistribution structure is over the active surface of the die and the encapsulant. The redistribution structure is electrically connected to the die and the conductive structures.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: August 2, 2022
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Sheng-Huan Chiu, Chun-Jen Chen, Chen-Shien Chen, Kuo-Chio Liu, Kuo-Hui Chang, Chung-Yi Lin, Hsi-Kuei Cheng, Yi-Jen Lai
  • Patent number: 11255781
    Abstract: A visibility meter, a street light device and an operation method thereof are provided. The visibility measurement method includes: transmitting a visible laser through an optical transmitter; receiving the visible laser through an optical sensor to generate a sensed result; and calculating a visibility according to the sensed result.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: February 22, 2022
    Assignees: LITE-ON ELECTRONICS (GUANGZHOU) LIMITED, Lite-On Technology Corporation
    Inventors: Li-Ta Fan, Kuei-Ling Chen, Tsan-Li Chiu, Kuo-Hui Chang, Yao-Chi Peng
  • Patent number: 11143383
    Abstract: The present invention discloses a light emitting device. The light emitting device includes a housing, a first light emitting module and a second light emitting module. The first light emitting module is provided with a first light emitting area and is disposed on the housing. The second light emitting module is provided with a second light emitting area and is disposed on the housing and surrounds the first light emitting module. A first luminance in the first light emitting area is higher than a second luminance in the second light emitting area, and the first luminance and the second luminance are separately controlled.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: October 12, 2021
    Inventors: Kuo-Hui Chang, Yao-Chi Peng
  • Patent number: 11133400
    Abstract: Structures and formation methods of a semiconductor device structure are provided. The semiconductor device structure includes a gate stack over a semiconductor substrate and a cap element over the gate stack. The cap element has an upper portion and a lower portion, and the upper portion is wider than the lower portion. The semiconductor device structure also includes a spacer element over a sidewall of the cap element and a sidewall of the gate stack.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: September 28, 2021
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Po-Chi Wu, Chai-Wei Chang, Kuo-Hui Chang, Yi-Cheng Chao
  • Publication number: 20210207786
    Abstract: The present invention discloses a light emitting device. The light emitting device includes a housing, a first light emitting module and a second light emitting module. The first light emitting module is provided with a first light emitting area and is disposed on the housing. The second light emitting module is provided with a second light emitting area and is disposed on the housing and surrounds the first light emitting module. A first luminance in the first light emitting area is higher than a second luminance in the second light emitting area, and the first luminance and the second luminance are separately controlled.
    Type: Application
    Filed: November 10, 2020
    Publication date: July 8, 2021
    Inventors: Kuo-Hui CHANG, Yao-Chi PENG
  • Patent number: 10966301
    Abstract: A lighting device including a light emitting module, a light pattern determination module, and a controller is provided. The light emitting module is configured to emit an illumination light. The light pattern determination module includes a first lens and a second lens. The first lens corresponds to a first light pattern, the second lens corresponds to a second light pattern, and the first light pattern is different from the second light pattern. The controller is configured to adjust at least one of the light emitting module and the light pattern determination module, so as to control an illumination light pattern of the illumination light passed through the light pattern determination module. In addition, a lighting method of the lighting device and a lighting system using the lighting device are also provided.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: March 30, 2021
    Assignees: LITE-ON ELECTRONICS (GUANGZHOU) LIMITED, Lite-On Technology Corporation
    Inventors: Yao-Chi Peng, Kuo-Hui Chang, Ming-Hung Chien
  • Publication number: 20200371024
    Abstract: A visibility meter, a street light device and an operation method thereof are provided. The visibility measurement method includes: transmitting a visible laser through an optical transmitter; receiving the visible laser through an optical sensor to generate a sensed result; and calculating a visibility according to the sensed result.
    Type: Application
    Filed: May 20, 2020
    Publication date: November 26, 2020
    Applicants: LITE-ON ELECTRONICS (GUANGZHOU) LIMITED, Lite-On Technology Corporation
    Inventors: Li-Ta Fan, Kuei-Ling Chen, Tsan-Li Chiu, Kuo-Hui Chang, Yao-Chi Peng
  • Patent number: 10787158
    Abstract: A brake system including a base, a driving motor, a cam, a braking pump, a rotating column, and a bearing shaft. The base has an accommodating space. The driving motor is disposed on the base and located in the accommodating space. The cam is pivoted to the driving motor, and the driving motor is adapted to drive the cam to rotate relative to the base. The braking pump is disposed outside the base. The rotating column is rotatably disposed outside the base and connected to the braking pump. The bearing shaft is connected to the rotating column and extended into the accommodating space so as to radially in contact with the cam.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: September 29, 2020
    Assignee: Acer Incorporated
    Inventors: Tsung-Hsun Wu, Wen-Shu Lee, Kuo-Hui Chang, Chih-Kai Wang
  • Publication number: 20200229277
    Abstract: A lighting device including a light emitting module, a light pattern determination module, and a controller is provided. The light emitting module is configured to emit an illumination light. The light pattern determination module includes a first lens and a second lens. The first lens corresponds to a first light pattern, the second lens corresponds to a second light pattern, and the first light pattern is different from the second light pattern. The controller is configured to adjust at least one of the light emitting module and the light pattern determination module, so as to control an illumination light pattern of the illumination light passed through the light pattern determination module. In addition, a lighting method of the lighting device and a lighting system using the lighting device are also provided.
    Type: Application
    Filed: April 23, 2019
    Publication date: July 16, 2020
    Applicants: LITE-ON ELECTRONICS (GUANGZHOU) LIMITED, Lite-On Technology Corporation
    Inventors: Yao-Chi Peng, Kuo-Hui Chang, Ming-Hung Chien
  • Publication number: 20200194326
    Abstract: A package includes a die, a plurality of conductive structures, an encapsulant, and a redistribution structure. The die has an active surface and a rear surface opposite to the active surface. The conductive structures surround the die. The conductive structures include elliptical columns. The encapsulant encapsulates the die and the conductive structures. The redistribution structure is over the active surface of the die and the encapsulant. The redistribution structure is electrically connected to the die and the conductive structures.
    Type: Application
    Filed: February 24, 2020
    Publication date: June 18, 2020
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Sheng-Huan Chiu, Chun-Jen Chen, Chen-Shien Chen, Kuo-Chio Liu, Kuo-Hui Chang, Chung-Yi Lin, Hsi-Kuei Cheng, Yi-Jen Lai
  • Publication number: 20200094803
    Abstract: A brake system including a base, a driving motor, a cam, a braking pump, a rotating column, and a bearing shaft. The base has an accommodating space. The driving motor is disposed on the base and located in the accommodating space. The cam is pivoted to the driving motor, and the driving motor is adapted to drive the cam to rotate relative to the base. The braking pump is disposed outside the base. The rotating column is rotatably disposed outside the base and connected to the braking pump. The bearing shaft is connected to the rotating column and extended into the accommodating space so as to radially in contact with the cam.
    Type: Application
    Filed: November 26, 2018
    Publication date: March 26, 2020
    Applicant: Acer Incorporated
    Inventors: Tsung-Hsun Wu, Wen-Shu Lee, Kuo-Hui Chang, Chih-Kai Wang