Patents by Inventor Kai-Hung Cheng

Kai-Hung Cheng 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: 20240395986
    Abstract: A light-emitting element, a manufacturing method thereof, and a package structure are provided. The light-emitting element includes a first semiconductor layer, an active layer disposed on the first semiconductor layer, a second semiconductor layer disposed on the active layer, and a convex lens structure disposed on the second semiconductor layer. The convex lens structure includes a plurality of microlenses. The microlenses and the second semiconductor layer are integrally formed and have the same material. The radius of curvature of one of the microlenses is 0.2 ?m to 5.0 ?m, and the light-emission angle of the light-emitting element is 100° to 110°.
    Type: Application
    Filed: May 20, 2024
    Publication date: November 28, 2024
    Inventors: Shiou-Yi KUO, Jian-Chin LIANG, Cheng-Hsien LI, Kai Hung CHENG
  • Publication number: 20240315615
    Abstract: A detection element of biological subcutaneous features and a wearable device thereof are provided. The element for detecting biological subcutaneous features has a substrate, a light-detecting semiconductor chip, a grid structure, and a cover. The light-detecting semiconductor chip is located on the substrate for detecting red light or near-infrared light signals. The grid structure including a plurality of opaque light-absorbing blocking walls is located on the light-detecting semiconductor chip for blocking side light and increasing the proportion of near-vertical incident light. The cover is located on the grid structure and serves as a protection lid. The wearable device for detecting biological subcutaneous features has more than one light source of red light or near-infrared light and a plurality of detection elements. The arrangement of the opaque light-absorbing blocking walls that are parallel to each other are substantially parallel to the light-emitting directions of the light source.
    Type: Application
    Filed: March 19, 2024
    Publication date: September 26, 2024
    Inventors: Kai-Hung CHENG, Ku-Cheng LIN, Chun-Min LIN, Ke-Wei LIU
  • Publication number: 20240282638
    Abstract: Methods of cutting fins, and structures formed thereby, are described. In an embodiment, a structure includes a first fin on a substrate, a second fin on the substrate, and a fin cut-fill structure disposed between the first fin and the second fin. The first fin and the second fin are longitudinally aligned. The fin cut-fill structure includes an insulating liner and a fill material on the insulating liner. The insulating liner abuts a first sidewall of the first fin and a second sidewall of the second fin. The insulating liner includes a material with a band gap greater than 5 eV.
    Type: Application
    Filed: April 16, 2024
    Publication date: August 22, 2024
    Inventors: Shih-Wen Huang, Jaming Chang, Kai Hung Cheng, Chia-Hui Lin, Jei Ming Chen
  • Patent number: 11990375
    Abstract: Methods of cutting fins, and structures formed thereby, are described. In an embodiment, a structure includes a first fin on a substrate, a second fin on the substrate, and a fin cut-fill structure disposed between the first fin and the second fin. The first fin and the second fin are longitudinally aligned. The fin cut-fill structure includes an insulating liner and a fill material on the insulating liner. The insulating liner abuts a first sidewall of the first fin and a second sidewall of the second fin. The insulating liner includes a material with a band gap greater than 5 eV.
    Type: Grant
    Filed: June 29, 2022
    Date of Patent: May 21, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Shih-Wen Huang, Jaming Chang, Kai Hung Cheng, Chia-Hui Lin, Jei Ming Chen
  • Publication number: 20240128412
    Abstract: A micro LED structure includes a first micro LED chip having opposite first and second sides, a second micro LED chip adjacent to the first side of the second micro LED chip, a third micro LED chip adjacent to the first side of the first micro LED chip, and optical structures respectively over the first micro LED chip, the second micro LED chip and the third micro LED chip. Each of the first, second and third micro LED chip includes a semiconductor stack, a metal pad and a reflective coating layer. The semiconductor stack includes a first semiconductor layer, an active layer in contact with the first semiconductor layer, and a second semiconductor layer in contact with the active layer. The metal pad is in contact with the first semiconductor layer, and the reflective coating layer is disposed around sidewalls of the semiconductor stack.
    Type: Application
    Filed: December 28, 2023
    Publication date: April 18, 2024
    Inventors: Kai-Hung CHENG, Fu-Han HO
  • Patent number: 11894495
    Abstract: A micro LED structure includes a first micro LED chip having opposite first and second sides, a second micro LED chip adjacent to the first side of the second micro LED chip, a third micro LED chip adjacent to the first side of the first micro LED chip, and optical structures respectively over the first micro LED chip, the second micro LED chip and the third micro LED chip. Each of the first, second and third micro LED chip includes a semiconductor stack, a metal pad and a reflective coating layer. The semiconductor stack includes a first semiconductor layer, an active layer in contact with the first semiconductor layer, and a second semiconductor layer in contact with the active layer. The metal pad is in contact with the first semiconductor layer, and the reflective coating layer is disposed around sidewalls of the semiconductor stack.
    Type: Grant
    Filed: June 2, 2021
    Date of Patent: February 6, 2024
    Assignee: Lextar Electronics Corporation
    Inventors: Kai-Hung Cheng, Fu-Han Ho
  • Patent number: 11709128
    Abstract: An optical detection apparatus includes a substrate, a light source, a light sensor, a light-guiding structure. The substrate has a top surface. The light source on the top surface is configured to generate detection light toward an object over the light source. The light sensor is located on the top surface. The light-guiding structure is above the top surface and at least partially above the light source. A central axis of the light-guiding structure is vertical to the top surface, and the light source and the light sensor are at opposite sides relative to the central axis. The light-guiding structure is configured to deflect the detection light from one of the opposite sides at which the light source is located to another one of the opposite side at which the light sensor is located, such that the detection light reflected by the object moves toward the light sensor.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: July 25, 2023
    Assignee: Lextar Electronics Corporation
    Inventors: Fu-Han Ho, Kai-Hung Cheng
  • Publication number: 20230138130
    Abstract: The present disclosure provides a compound shown as formula (I), formula (II), which is used to prepare a radiocontrast tracer that can target binding to Tau protein.
    Type: Application
    Filed: January 21, 2022
    Publication date: May 4, 2023
    Inventors: Ming-Hsin Li, Shih-Wei Lo, Kai-Hung Cheng, Liang-Hsun Huang, Li-Ming Wang
  • Patent number: 11570339
    Abstract: According to the disclosure, a photodiode package structure is provided. The photodiode package structure includes a substrate, a photodiode chip on the substrate, a plurality of shutters above the photodiode chip, and a seal member covering the substrate and the photodiode chip, in which the shutters are embedded in the seal member.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: January 31, 2023
    Assignee: Lextar Electronics Corporation
    Inventors: Kai-Hung Cheng, Fu-Han Ho
  • Publication number: 20220393078
    Abstract: A micro LED structure includes a first micro LED chip having opposite first and second sides, a second micro LED chip adjacent to the first side of the second micro LED chip, a third micro LED chip adjacent to the first side of the first micro LED chip, and optical structures respectively over the first micro LED chip, the second micro LED chip and the third micro LED chip. Each of the first, second and third micro LED chip includes a semiconductor stack, a metal pad and a reflective coating layer. The semiconductor stack includes a first semiconductor layer, an active layer in contact with the first semiconductor layer, and a second semiconductor layer in contact with the active layer. The metal pad is in contact with the first semiconductor layer, and the reflective coating layer is disposed around sidewalls of the semiconductor stack.
    Type: Application
    Filed: June 2, 2021
    Publication date: December 8, 2022
    Inventors: Kai-Hung CHENG, Fu-Han HO
  • Publication number: 20220328360
    Abstract: Methods of cutting fins, and structures formed thereby, are described. In an embodiment, a structure includes a first fin on a substrate, a second fin on the substrate, and a fin cut-fill structure disposed between the first fin and the second fin. The first fin and the second fin are longitudinally aligned. The fin cut-fill structure includes an insulating liner and a fill material on the insulating liner. The insulating liner abuts a first sidewall of the first fin and a second sidewall of the second fin. The insulating liner includes a material with a band gap greater than 5 eV.
    Type: Application
    Filed: June 29, 2022
    Publication date: October 13, 2022
    Inventors: Shih-Wen Huang, Jaming Chang, Kai Hung Cheng, Chia-Hui Lin, Jei Ming Chen
  • Publication number: 20220268690
    Abstract: An optical detection apparatus includes a substrate, a light source, a light sensor, a light-guiding structure. The substrate has a top surface. The light source on the top surface is configured to generate detection light toward an object over the light source. The light sensor is located on the top surface. The light-guiding structure is above the top surface and at least partially above the light source. A central axis of the light-guiding structure is vertical to the top surface, and the light source and the light sensor are at opposite sides relative to the central axis. The light-guiding structure is configured to deflect the detection light from one of the opposite sides at which the light source is located to another one of the opposite side at which the light sensor is located, such that the detection light reflected by the object moves toward the light sensor.
    Type: Application
    Filed: April 29, 2021
    Publication date: August 25, 2022
    Inventors: Fu-Han HO, Kai-Hung CHENG
  • Publication number: 20220227728
    Abstract: The present invention discloses a series of nuclear medicine tracers that are combined with brain microtubule-associated protein Tau targeting compounds to produce a group of compounds of nuclear medicine that can be utilized for imaging of microtubule-associated protein Tau. When the positrons released by the decay encounter the electrons of the cells in the sample, utilizing the positron decay characteristics of fluorine-18 or iodine-124 isotope to generate mutual destruction reactions, a pair of opposite gamma rays is formed which are imaged by positron emission tomography. The compounds can be applied for the in vivo detection of microtubule-associated protein Tau deposits in the brain. The invention provides a strategy for diagnosis of Alzheimer's disease and a method to measure the efficacy of therapeutic drugs targeting microtubule-associated protein Tau.
    Type: Application
    Filed: January 19, 2021
    Publication date: July 21, 2022
    Inventors: MING-HSIN LI, KAI-HUNG CHENG, SHENG-NAN LO, SHIH-WEI LO, YUAN-RUEI HUANG, JENN-TZONG CHEN
  • Patent number: 11380593
    Abstract: Methods of cutting fins, and structures formed thereby, are described. In an embodiment, a structure includes a first fin on a substrate, a second fin on the substrate, and a fin cut-fill structure disposed between the first fin and the second fin. The first fin and the second fin are longitudinally aligned. The fin cut-fill structure includes an insulating liner and a fill material on the insulating liner. The insulating liner abuts a first sidewall of the first fin and a second sidewall of the second fin. The insulating liner includes a material with a band gap greater than 5 eV.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: July 5, 2022
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Shih-Wen Huang, Jaming Chang, Kai Hung Cheng, Chia-Hui Lin, Jei Ming Chen
  • Publication number: 20220103726
    Abstract: According to the disclosure, a photodiode package structure is provided. The photodiode package structure includes a substrate, a photodiode chip on the substrate, a plurality of shutters above the photodiode chip, and a seal member covering the substrate and the photodiode chip, in which the shutters are embedded in the seal member.
    Type: Application
    Filed: September 30, 2020
    Publication date: March 31, 2022
    Inventors: Kai-Hung CHENG, Fu-Han HO
  • Patent number: 11202577
    Abstract: A system and method for monitoring cardiovascular and brain functions in combination with a physiological detection device, which uses a smart wearable device to detect physiological data such as heart rate and pulse pressure of a user, and transmits the physiological data to an arithmetic function. An electronic device in which a preset function and a calculation formula are built in, and the physiological data can be converted into corresponding determination parameters to monitor the possibility and risk of cardiovascular diseases and neurodegenerative diseases.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: December 21, 2021
    Inventors: Ming-Hsin Li, Kai-Hung Cheng, Shih-Wei Lo
  • Patent number: 11195717
    Abstract: A four-layer photoresist and method of forming the same are disclosed. In an embodiment, a method includes forming a semiconductor fin; depositing a target layer on the semiconductor fin; depositing a BARC layer on the target layer; depositing a first mask layer over the BARC layer, the first mask layer being deposited using a plasma process with an RF power of less than 50 W; depositing a second mask layer over the first mask layer using a plasma process with an RF power of less than 500 W; depositing a photoresist layer over the second mask layer; patterning the photoresist layer, the second mask layer, the first mask layer, and the BARC layer to form a first mask; and selectively removing the target layer from a first portion of the semiconductor fin using the first mask, the target layer remaining on a second portion of the semiconductor fin.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: December 7, 2021
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Dong-Sheng Li, Chia-Hui Lin, Kai Hung Cheng, Yao-Hsu Sun, Wen-Cheng Wu, Bo-Cyuan Lu, Sung-En Lin, Tai-Chun Huang
  • Publication number: 20210121074
    Abstract: A system and method for monitoring cardiovascular and brain functions in combination with a physiological detection device, which uses a smart wearable device to detect physiological data such as heart rate and pulse pressure of a user, and transmits the physiological data to an arithmetic function. An electronic device in which a preset function and a calculation formula are built in, and the physiological data can be converted into corresponding determination parameters to monitor the possibility and risk of cardiovascular diseases and neurodegenerative diseases.
    Type: Application
    Filed: October 28, 2019
    Publication date: April 29, 2021
    Inventors: MING-HSIN LI, KAI-HUNG CHENG, SHIH-WEI LO
  • Publication number: 20200411386
    Abstract: Methods of cutting fins, and structures formed thereby, are described. In an embodiment, a structure includes a first fin on a substrate, a second fin on the substrate, and a fin cut-fill structure disposed between the first fin and the second fin. The first fin and the second fin are longitudinally aligned. The fin cut-fill structure includes an insulating liner and a fill material on the insulating liner. The insulating liner abuts a first sidewall of the first fin and a second sidewall of the second fin. The insulating liner includes a material with a band gap greater than 5 eV.
    Type: Application
    Filed: September 14, 2020
    Publication date: December 31, 2020
    Inventors: Shih-Wen Huang, Jaming Chang, Kai Hung Cheng, Chia-Hui Lin, Jei Ming Chen
  • Publication number: 20200373154
    Abstract: A four-layer photoresist and method of forming the same are disclosed. In an embodiment, a method includes forming a semiconductor fin; depositing a target layer on the semiconductor fin; depositing a BARC layer on the target layer; depositing a first mask layer over the BARC layer, the first mask layer being deposited using a plasma process with an RF power of less than 50 W; depositing a second mask layer over the first mask layer using a plasma process with an RF power of less than 500 W; depositing a photoresist layer over the second mask layer; patterning the photoresist layer, the second mask layer, the first mask layer, and the BARC layer to form a first mask; and selectively removing the target layer from a first portion of the semiconductor fin using the first mask, the target layer remaining on a second portion of the semiconductor fin.
    Type: Application
    Filed: August 3, 2020
    Publication date: November 26, 2020
    Inventors: Dong-Sheng Li, Chia-Hui Lin, Kai Hung Cheng, Yao-Hsu Sun, Wen-Cheng Wu, Bo-Cyuan Lu, Sung-En Lin, Tai-Chun Huang