Patents by Inventor Chun-Hao Chang

Chun-Hao 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: 20200318241
    Abstract: A method for fabricating nonenzymatic glucose sensor, which comprises steps of: (a) providing a bottom substrate; (b) preparing a graphene layer on the bottom substrate; (c) depositing plural amount of zinc oxide (ZnO) seed crystals on the graphene layer; (d) growing the ZnO seed crystals into columnar nanorods with hydrothermal method; (e) coating a thin film of cuprous oxide (Cu2O) on the surface of the ZnO nanorods by electrochemistry-based electrodeposition; and (f) grafting single-walled carbon nanotubes (SWCNTs) on surface of the Cu2O thin film, by using Nafion fixative composited with SWCNTs. The structure of the above sensor, therefore, comprises a bottom substrate and other components orderly assembled on it, including, from inside to outside, a graphene layer, plural amount of ZnO nanorods, a Cu2O thin film, plural amount of SWCNTs, and the Nafion fixative. Accordingly, the sensor has advantages of low cost, rapid response, and easy for preservation.
    Type: Application
    Filed: January 10, 2020
    Publication date: October 8, 2020
    Inventors: Hsi-Chao Chen, Wei-Rong Su, Yun-Cheng Yeh, Chun-Hao Chang
  • Publication number: 20200302998
    Abstract: Memories are provided. A memory includes a first memory array, a second memory array, and a read circuit. The first memory array is configured to store main data. The second memory array is configured to store complement data that is complementary to the main data. The read circuit includes a first sense amplifier, a second sense amplifier and an output buffer. The first sense amplifier is configured to provide a first sensing signal according to a reference signal and first data of the main data corresponding to a first address signal. The second sense amplifier is configured to provide a second sensing signal according to the reference signal and second data of the complement data corresponding to the first address signal. The output buffer is configured to provide one of the first sensing signal and the second sensing signal as an output according to a control signal.
    Type: Application
    Filed: June 8, 2020
    Publication date: September 24, 2020
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Yuhsiang CHEN, Shao-Yu CHOU, Chun-Hao CHANG, Min-Shin WU, Yu-Der CHIH
  • Patent number: 10706918
    Abstract: Memories with symmetric read current profiles are provided. A memory includes a first memory array formed by a plurality of memory cells, a second memory array formed by a plurality of memory cells, and a read circuit. The read circuit includes an output buffer. The output buffer is configured to simultaneously obtain first data from the first memory array and second data from the second memory array according a first address signal, and selectively provide the first data or the second data as an output according to a control signal. Binary representation of the first data is complementary to that of the second data.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: July 7, 2020
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Yuhsiang Chen, Shao-Yu Chou, Chun-Hao Chang, Min-Shin Wu, Yu-Der Chih
  • Publication number: 20200173948
    Abstract: The invention provides a bio-detection device, including a carrier, a plurality of spacers, an electronic circuit, and a package layer, wherein an open platform is formed. The carrier includes a test region and a signal transmission wiring, wherein the test region is configured to carry a fluid under test. The spacers are located on the test region and electrically connected to two different voltage levels to form a capacitor for sensing a capacitance of the fluid. The spacers are connected to the signal transmission wiring. The electronic circuit receives and processes a sensing signal corresponding to the capacitance of the fluid. The package layer covers a portion of the carrier but does not cover the test region. The open platform is formed whereby a user can easily put in the fluid. The open platform has a bottom which includes the test region, and an area of the open platform is defined by the spacers and the package layer.
    Type: Application
    Filed: February 4, 2020
    Publication date: June 4, 2020
    Inventors: Yu-Lin Yang, Chun-Hao Chang, Min-Da Wu, Hung-Der Su, Da-Hong Qian
  • Publication number: 20200168286
    Abstract: A method, of detecting an address decoding error of a semiconductor device, includes: decoding an original address, with an address decoder of the semiconductor device, to form a corresponding decoded address; recoding the decoded address, with an encoder of the semiconductor device, to form a recoded address; making a comparison, with a comparator of the semiconductor device, of the recoded address and the original address; and detecting an address decoding error based on the comparison.
    Type: Application
    Filed: January 30, 2020
    Publication date: May 28, 2020
    Inventors: Hidehiro FUJIWARA, Ching-Wei WU, Chun-Hao CHANG
  • Patent number: 10611910
    Abstract: The present invention discloses a halogen-free epoxy resin composition having low dielectric loss, comprises: (A) 100 parts by weight of an epoxy resin; (B) 10-30 parts by weight of a DOPO modified curing agent; (C) 1-10 parts by weight of benzoxazine resin; (D) 60-90 parts by weight of an active ester compound; (E) 20-50 parts by weight of a flame retardant; and (F) 0.5-10 parts by weight of a curing accelerator. The halogen-free epoxy resin composition uses active ester as a curing agent of the epoxy resin to ensure that the hardening product has characteristics such as low dielectric constant (Dk), low dielectric loss (Df), high heat resistance, low water absorption, flame retardant and halogen-free. The halogen-free epoxy resin composition of the present invention is used for manufacturing semi-cured prepregs or resin-coated films, and is applied toward manufacturing metal clad laminates and printed circuit boards.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: April 7, 2020
    Assignee: ITEQ CORPORATION
    Inventors: Kai-Yang Chen, Chun-Hao Chang, Yu-Chieh Hsu
  • Patent number: 10591434
    Abstract: The invention provides a bio-detection device, including a carrier, a plurality of spacers, an electronic circuit, and a package layer, wherein an open platform is formed. The carrier includes a test region and a signal transmission wiring, wherein the test region is configured to carry a fluid under test. The spacers are located on the test region and electrically connected to two different voltage levels to form a capacitor for sensing a capacitance of the fluid. The spacers are connected to the signal transmission wiring. The electronic circuit receives and processes a sensing signal corresponding to the capacitance of the fluid. The package layer covers a portion of the carrier but does not cover the test region. The open platform is formed whereby a user can easily put in the fluid. The open platform has a bottom which includes the test region, and an area of the open platform is defined by the spacers and the package layer.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: March 17, 2020
    Assignee: RICHTEK TECHNOLOGY CORPORATION
    Inventors: Yu-Lin Yang, Chun-Hao Chang, Min-Da Wu, Hung-Der Su, Da-Hong Qian
  • Patent number: 10553300
    Abstract: A system for detecting an address decoding error of a semiconductor device, includes: decoding an original address, with an address decoder of the semiconductor device, to form a corresponding decoded address; recoding the decoded address, with an encoder of the semiconductor device, to form a recoded address; making a comparison, with a comparator of the semiconductor device, of the recoded address and the original address; and detecting an address decoding error based on the comparison.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: February 4, 2020
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Hidehiro Fujiwara, Ching-Wei Wu, Chun-Hao Chang
  • Publication number: 20190244660
    Abstract: Memories with symmetric read current profiles are provided. A memory includes a first memory array formed by a plurality of memory cells, a second memory array formed by a plurality of memory cells, and a read circuit. The read circuit includes an output buffer. The output buffer is configured to simultaneously obtain first data from the first memory array and second data from the second memory array according a first address signal, and selectively provide the first data or the second data as an output according to a control signal. Binary representation of the first data is complementary to that of the second data.
    Type: Application
    Filed: April 22, 2019
    Publication date: August 8, 2019
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Yuhsiang CHEN, Shao-Yu CHOU, Chun-Hao CHANG, Min-Shin WU, Yu-Der CHIH
  • Publication number: 20190227018
    Abstract: The invention provides a bio-detection device, including a carrier, a plurality of spacers, an electronic circuit, and a package layer, wherein an open platform is formed. The carrier includes a test region and a signal transmission wiring, wherein the test region is configured to carry a fluid under test. The spacers are located on the test region and electrically connected to two different voltage levels to form a capacitor for sensing a capacitance of the fluid. The spacers are connected to the signal transmission wiring. The electronic circuit receives and processes a sensing signal corresponding to the capacitance of the fluid. The package layer covers a portion of the carrier but does not cover the test region. The open platform is formed whereby a user can easily put in the fluid. The open platform has a bottom which includes the test region, and an area of the open platform is defined by the spacers and the package layer.
    Type: Application
    Filed: April 24, 2017
    Publication date: July 25, 2019
    Inventors: Yu-Lin Yang, Chun-Hao Chang, Min-Da Wu, Hung-Der Su, Da-Hong Qian
  • Publication number: 20190165039
    Abstract: A microarray and a method for forming the same are disclosed and the method includes the following steps. A solid matrix and a micro LED array is provided, wherein the solid matrix comprises a plurality of areas corresponding to a plurality of LEDs of the micro LED array. A monomer with a photolabile protecting group is formed in the plurality of areas respectively. At least one of the plurality of areas is irradiated by turning on the corresponding LED of the micro LED array, so as to eliminate the photolabile protecting group of the monomer in the at least one of the plurality of areas. A monomer is conjugated to the deprotected monomer in the at least one of the plurality of areas. The steps of irradiating and conjugating are repeated, so as to form probes in the plurality of areas respectively.
    Type: Application
    Filed: November 27, 2018
    Publication date: May 30, 2019
    Applicant: Centrillion Technologies Taiwan Co. LTD.
    Inventors: Tzu-Kun Ku, Yao-Kuang Chung, Chun-Hao Chang
  • Patent number: 10269420
    Abstract: Memories with symmetric read current profiles are provided. A memory includes a first memory array formed by a plurality of memory cells, a second memory array formed by a plurality of memory cells, and a read circuit. The read circuit includes a first decoder coupled to the first memory array, a second decoder coupled to the second memory array, and an output buffer. The first decoder obtains first data from the first memory array according a first address signal. The second decoder obtains second data from the second memory array according the first address signal. The output buffer selectively provides the first data or the second data as an output according to a control signal. The first data is complementary to the second data.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: April 23, 2019
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Yuhsiang Chen, Shao-Yu Chou, Chun-Hao Chang, Min-Shin Wu, Yu-Der Chih
  • Publication number: 20190085440
    Abstract: An apparatus for in situ steam generation oxidation are provided. The apparatus includes a reactor chamber. The apparatus also includes a radiant source over the chamber. The radiant source includes a plurality of lamps for heating the reactor chamber. The apparatus further includes a lamphead over the radiant source for adjusting the temperature of the radiant source. In addition, the apparatus includes a gas inlet system coupled to the lamphead. The gas inlet system includes a mass flow controller for adjusting the flow rate of cooling gas into the lamphead. The apparatus includes a gas outlet system, on the opposite side of the cooling gas inlet system, coupled to the lamphead. The gas outlet system includes a pressure controller for accelerating the exhaust rate of the cooling gas.
    Type: Application
    Filed: November 6, 2018
    Publication date: March 21, 2019
    Inventor: Chun-Hao CHANG
  • Publication number: 20180358106
    Abstract: A method, of detecting an address decoding error of a semiconductor device, includes: decoding an original address, with an address decoder of the semiconductor device, to form a corresponding decoded address; recoding the decoded address, with an encoder of the semiconductor device, to form a recoded address; making a comparison, with a comparator of the semiconductor device, of the recoded address and the original address; and detecting an address decoding error based on the comparison.
    Type: Application
    Filed: February 22, 2018
    Publication date: December 13, 2018
    Inventors: Hidehiro FUJIWARA, Ching-Wei WU, Chun-Hao CHANG
  • Patent number: 10119224
    Abstract: A method for manufacturing an imitation leather banded structure with noctilucence. The method has following steps: (1) providing an object with a surface; (2) coating a primer layer on the surface; (3) coating a shielding layer and a colored layer sequentially on the primer layer via a color printing mode; (4) coating a predetermined pattern on the colored layer; and (5) covering a transparent ink layer, and performing an imitation leather printing via a UV mask.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: November 6, 2018
    Inventor: Chun-Hao Chang
  • Publication number: 20180306742
    Abstract: The invention provides a bio-detection device, including a carrier, a plurality of spacers, an electronic circuit, and a package layer, wherein an open platform is formed. The carrier includes a test region and a signal transmission wiring, wherein the test region is configured to carry a fluid under test. The spacers are located on the test region and electrically connected to two different voltage levels to form a capacitor for sensing a capacitance of the fluid. The spacers are connected to the signal transmission wiring. The electronic circuit receives and processes a sensing signal corresponding to the capacitance of the fluid. The package layer covers a portion of the carrier but does not cover the test region. The open platform is formed whereby a user can easily put in the fluid. The open platform has a bottom which includes the test region, and an area of the open platform is defined by the spacers and the package layer.
    Type: Application
    Filed: April 24, 2017
    Publication date: October 25, 2018
    Inventors: Yu-Lin Yang, Chun-Hao Chang, Min-Da Wu, Hung-Der Su, Da-Hong Qian
  • Publication number: 20180223094
    Abstract: The present invention discloses a halogen-free epoxy resin composition having low dielectric loss, comprises: (A) 100 parts by weight of an epoxy resin; (B) 10-30 parts by weight of a DOPO modified curing agent; (C) 1-10 parts by weight of benzoxazine resin; (D) 60-90 parts by weight of an active ester compound; (E) 20-50 parts by weight of a flame retardant; and (F) 0.5-10 parts by weight of a curing accelerator. The halogen-free epoxy resin composition uses active ester as a curing agent of the epoxy resin to ensure that the hardening product has characteristics such as low dielectric constant (Dk), low dielectric loss (Df), high heat resistance, low water absorption, flame retardant and halogen-free. The halogen-free epoxy resin composition of the present invention is used for manufacturing semi-cured prepregs or resin-coated films, and is applied toward manufacturing metal clad laminates and printed circuit boards.
    Type: Application
    Filed: November 8, 2017
    Publication date: August 9, 2018
    Inventors: Kai-Yang CHEN, Chun-Hao CHANG, Yu-Chieh HSU
  • Publication number: 20180166131
    Abstract: Memories with symmetric read current profiles are provided. A memory includes a first memory array formed by a plurality of memory cells, a second memory array formed by a plurality of memory cells, and a read circuit. The read circuit includes a first decoder coupled to the first memory array, a second decoder coupled to the second memory array, and an output buffer. The first decoder obtains first data from the first memory array according a first address signal. The second decoder obtains second data from the second memory array according the first address signal. The output buffer selectively provides the first data or the second data as an output according to a control signal. The first data is complementary to the second data.
    Type: Application
    Filed: June 9, 2017
    Publication date: June 14, 2018
    Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Yuhsiang CHEN, Shao-Yu CHOU, Chun-Hao CHANG, Min-Shin WU, Yu-Der CHIH
  • Patent number: 9908201
    Abstract: Systems and methods are provided for edge bead removal. A laser beam of approximately a wavelength is received. The laser beam is delivered along a predetermined beam path. The laser beam is projected on an edge portion of a wafer for edge bead removal.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: March 6, 2018
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Chun-Hao Chang, Hsueh-Yi Chung, Shang-Yun Huang, Jui-Ping Chuang, Li-Kong Turn, Fei-Gwo Tsai
  • Publication number: 20170350068
    Abstract: A method for manufacturing an imitation leather banded structure with noctilucence. The method has following steps: (1) providing an object with a surface; (2) coating a primer layer on the surface; (3) coating a shielding layer and a colored layer sequentially on the primer layer via a color printing mode; (4) coating a predetermined pattern on the colored layer; and (5) covering a transparent ink layer, and performing an imitation leather printing via a UV mask.
    Type: Application
    Filed: June 3, 2016
    Publication date: December 7, 2017
    Inventor: Chun-Hao CHANG