Patents by Inventor Yao-Chung Chang

Yao-Chung 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: 9633843
    Abstract: A heterostructure may include a substrate having a first primary surface, a second primary surface, and a diffusion layer extending a depth into the substrate from the first primary surface; and a deposition layer disposed on the second primary surface of the substrate. The heterostructure may further include an epitaxial layer disposed on the deposition layer.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: April 25, 2017
    Assignee: Global Wafers Co., Ltd
    Inventors: Yao-Chung Chang, Chia-Wen Ko, Manhsuan Lin
  • Publication number: 20160307754
    Abstract: A heterostructure may include a substrate having a first primary surface, a second primary surface, and a diffusion layer extending a depth into the substrate from the first primary surface; and a deposition layer disposed on the second primary surface of the substrate. The heterostructure may further include an epitaxial layer disposed on the deposition layer.
    Type: Application
    Filed: June 24, 2016
    Publication date: October 20, 2016
    Applicant: Global Wafers Co., Ltd.
    Inventors: Yao-Chung Chang, Chia-Wen Ko, Manhsuan Lin
  • Patent number: 9397168
    Abstract: A group III-V transistor device employing a novel layout for isolating and/or defining the active region is provided. A group III-V heterojunction is arranged over or within a substrate, and an inner drain electrode is arranged over the group III-V heterojunction. A gate has a ring shape and is arranged over the group III-V heterojunction around the inner drain electrode. An outer source electrode has a ring-shaped region arranged over the group III-V heterojunction around the gate. A method for manufacturing the group III-V transistor device is also provided.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: July 19, 2016
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Po-Chih Chen, Jiun-Lei Jerry Yu, Yu-Syuan Lin, Yao-Chung Chang, King-Yuen Wong
  • Patent number: 9378946
    Abstract: A heterostructure including: a substrate having a first primary surface, a second primary surface, and a diffusion layer extending a depth into the substrate from the first primary surface; and an epitaxial layer disposed on the second primary surface of the substrate is disclosed along with methods for production of the same.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: June 28, 2016
    Assignee: Global Wafers Co., Ltd
    Inventors: Yao-Chung Chang, Chih Chin Liang, Wen-Ching Hsu
  • Publication number: 20160111501
    Abstract: A group III-V transistor device employing a novel layout for isolating and/or defining the active region is provided. A group III-V heterojunction is arranged over or within a substrate, and an inner drain electrode is arranged over the group III-V heterojunction. A gate has a ring shape and is arranged over the group III-V heterojunction around the inner drain electrode. An outer source electrode has a ring-shaped region arranged over the group III-V heterojunction around the gate. A method for manufacturing the group III-V transistor device is also provided.
    Type: Application
    Filed: October 17, 2014
    Publication date: April 21, 2016
    Inventors: Po-Chih Chen, Jiun-Lei Jerry Yu, Yu-Syuan Lin, Yao-Chung Chang, King-Yuen Wong
  • Publication number: 20150380242
    Abstract: A heterostructure including: a substrate having a first primary surface, a second primary surface, and a diffusion layer extending a depth into the substrate from the first primary surface; and an epitaxial layer disposed on the second primary surface of the substrate is disclosed along with methods for production of the same.
    Type: Application
    Filed: June 25, 2015
    Publication date: December 31, 2015
    Inventors: Yao-Chung Chang, Chih Chin Liang, Wen-Ching Hsu
  • Publication number: 20100251575
    Abstract: In a lightweight shoe with a decoration structure and its manufacturing method, the shoe is made of a sole, a body and a decoration ring, and the sole is made of a foaming material, and the colored decoration ring is made of PVC, TPR or TPU and installed between the top rim of the sole and the body and exposed to the exterior for decorating the shoe.
    Type: Application
    Filed: October 18, 2008
    Publication date: October 7, 2010
    Inventor: Yao-Chung CHANG
  • Publication number: 20020056699
    Abstract: A method of eliminating surface roughness of metal lines is disclosed, which can effectively improve the rough edges formed on the surface of the metal lines after wet etching during the manufacturing process of a thin film transistor, so that reliability is increased and current leakage can be avoided. The method includes the steps of: applying a tetra-methyl ammonium hydroxide solution to the rough surface of the metal lines and keeping the metal lines still for a predetermined time; and rinsing the metal lines to remove the tetra-methyl ammonium hydroxide solution left on the surface of the metal lines.
    Type: Application
    Filed: August 24, 2001
    Publication date: May 16, 2002
    Applicant: Hannstar Display Corp.
    Inventors: Chih-Chung Sun, Yao-Chung Chang
  • Patent number: D747837
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: January 19, 2016
    Assignee: OCEANSTAR DESIGN GROUP INC.
    Inventor: Charles Yao Chung Chang
  • Patent number: D760979
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: July 5, 2016
    Assignee: OCEANSTAR DESIGN GROUP INC.
    Inventor: Charles Yao Chung Chang
  • Patent number: D762336
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: July 26, 2016
    Assignee: OCEANSTAR DESIGN GROUP INC.
    Inventor: Charles Yao Chung Chang