Patents by Inventor Chun-Liang Chang

Chun-Liang 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: 20210288149
    Abstract: A method for forming a high-electron mobility transistor is disclosed. A substrate is provided. A buffer layer is formed over the substrate. A GaN channel layer is formed over the buffer layer. An AlGaN layer is formed over the GaN channel layer. A GaN source layer and a GaN drain layer are formed on the AlGaN layer within a source region and a drain region, respectively. A gate recess is formed in the AlGaN layer between the source region and the drain region. A p-GaN gate layer is then formed in and on the gate recess.
    Type: Application
    Filed: June 3, 2021
    Publication date: September 16, 2021
    Inventors: Shin-Chuan Huang, Chih-Tung Yeh, Chun-Ming Chang, Bo-Rong Chen, Wen-Jung Liao, Chun-Liang Hou
  • Publication number: 20210288150
    Abstract: A high-electron mobility transistor includes a substrate, a GaN channel layer over the substrate, an AlGaN layer over the GaN channel layer, a gate recess in the AlGaN layer, a source region and a drain region on opposite sides of the gate recess, a GaN source layer and a GaN drain layer grown on the AlGaN layer within the source region and the drain region, respectively, a p-GaN gate layer in and on the gate recess; and a re-grown AlGaN film on the AlGaN layer, on the GaN source layer and the GaN drain layer, and on interior surface of the gate recess.
    Type: Application
    Filed: June 3, 2021
    Publication date: September 16, 2021
    Inventors: Shin-Chuan Huang, Chih-Tung Yeh, Chun-Ming Chang, Bo-Rong Chen, Wen-Jung Liao, Chun-Liang Hou
  • Patent number: 10573898
    Abstract: The disclosure provides a high permeable porous substrate. The high permeable porous substrate includes a porous substrate body and a plurality of channels. The plurality of channels penetrate the first surface of the porous substrate body and do not penetrate the second surface of the porous substrate body. In addition, a solid oxide fuel cell supported by the high permeable porous substrate is also provided.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: February 25, 2020
    Assignee: INSTITUTE OF NUCLEAR ENERGY RESEARCH ATOMIC ENERGY COUNCIL, EXECUTIVE YUAN
    Inventors: Chang-Sing Hwang, Chun-Huang Tsai, Chun-Liang Chang, Zong-Yang Chuang Shie, Sheng-Fu Yang, Te-Jung Huang, Shih-Wei Cheng
  • Patent number: 10547079
    Abstract: A portable flame electric generation device having metal-supported solid oxide fuel cells includes a furnace, a heat shield structure, a plurality of metal-supported solid oxide fuel cells and a housing structure. Each of the metal-supported solid oxide fuel cells includes a porous metal substrate, a first anode layer, a second anode layer, an anode isolation layer, an electrolyte layer, a cathode isolation layer, a cathode interface layer and a cathode current-collecting layer. The metal-supported solid oxide fuel cell is capable of quickly starting up and withstanding thermal shocks, and also liquefied fuel cartridges are applied as heating and fuel sources for transforming the CO and H2 fuels into electricity via electrochemical reactions.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: January 28, 2020
    Assignee: INSTITUTE OF NUCLEAR ENERGY RESEARCH, ATOMIC ENERGY COUNCIL, EXECUTIVE YUAN, R.O.C.
    Inventors: Chang-Sing Hwang, Chun-Huang Tsai, Chun-Liang Chang, Ming-Hsiu Wu, Te-Jung Huang, Sheng-Fu Yang, Cheng-Yun Fu
  • Patent number: 9979032
    Abstract: A treatment method for solid oxide fuel cells includes: measuring a radius of curvature of a cell; measuring a surface resistance of cathode current collecting layer of a cell; performing an alcohol permeating test of a cell; performing simultaneously several stages of compression and heating or cooling to a cell; an apparatus for completing above stages is also disclosed.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: May 22, 2018
    Assignee: INSTITUTE OF NUCLEAR ENERGY RESEARCH ATOMIC ENERGY COUNCIL, EXECUTIVE YUAN
    Inventors: Chang-Sing Hwang, Chun-Liang Chang, Chun-Huang Tsai, Sheng-Huei Nian, Chih-Ming Chuang, Shih-Wei Cheng
  • Publication number: 20180115008
    Abstract: A portable flame electric generation device having metal-supported solid oxide fuel cells includes a furnace, a heat shield structure, a plurality of metal-supported solid oxide fuel cells and a housing structure. Each of the metal-supported solid oxide fuel cells includes a porous metal substrate, a first anode layer, a second anode layer, an anode isolation layer, an electrolyte layer, a cathode isolation layer, a cathode interface layer and a cathode current-collecting layer. The metal-supported solid oxide fuel cell is capable of quickly starting up and withstanding thermal shocks, and also liquefied fuel cartridges are applied as heating and fuel sources for transforming the CO and H2 fuels into electricity via electrochemical reactions.
    Type: Application
    Filed: June 23, 2017
    Publication date: April 26, 2018
    Inventors: CHANG-SING HWANG, CHUN-HUANG TSAI, CHUN-LIANG CHANG, MING-HSIU WU, TE-JUNG HUANG, SHENG-FU YANG, CHENG-YUN FU
  • Patent number: 9905873
    Abstract: The invention provides a permeable metal substrate and its manufacturing method. The permeable metal substrate includes a substrate body and a permeable powder layer. The permeable powder layer is located on the top of the substrate body. The substrate body can be a thick substrate or formed of a thick substrate and a thin substrate that are welded together. Both the thick and thin substrates have a plurality of permeable straight gas channels. In addition, a metal-supported solid oxide fuel cell and its manufacturing method are also provided.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: February 27, 2018
    Assignee: INSTITUTE OF NUCLEAR ENERGY RESEARCH, ATOMIC ENERGY COUNCIL, EXECUTIVE YUAN, R.O.C.
    Inventors: Chang-Sing Hwang, Chun-Huang Tsai, Chun-Liang Chang, Zong-Yang Chuang Shie, Sheng-Fu Yang, Te-Jung Huang, Ming-Hsiu Wu, Jing-Kai Lin
  • Patent number: 9796021
    Abstract: The disclosure provides a porous metal substrate structure with high gas permeability and redox stability for a SOFC and the fabrication process thereof, the porous metal substrate structure comprising: a porous metal plate composed of first metal particles; and a porous metal film composed of second metal particles and formed on the porous metal plate; wherein the porous metal plate has a thickness more than the porous metal film, and the first metal particle has a size more than the second metal particle. Further, a porous shell containing Fe is formed on the surface of each metal particle by impregnating a solution containing Fe in a high temperature sintering process of reducing or vacuum atmosphere, and the oxidation and reduction processes. The substrate uses the porous shells containing Fe particles to absorb the leakage oxygen.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: October 24, 2017
    Assignee: INSTITUTE OF NUCLEAR ENERGY RESEARCH ATOMIC ENERGY COUNCIL, EXECUTIVE YUAN
    Inventors: Chang-Sing Hwang, Chun-Huang Tsai, Jen-Feng Yu, Chun-Liang Chang, Jun-Meng Lin, Shih-Wei Cheng
  • Publication number: 20170288235
    Abstract: The disclosure provides a high permeable porous substrate. The high permeable porous substrate includes a porous substrate body and a plurality of channels. The plurality of channels penetrate the first surface of the porous substrate body and do not penetrate the second surface of the porous substrate body. In addition, a solid oxide fuel cell supported by the high permeable porous substrate is also provided.
    Type: Application
    Filed: June 20, 2017
    Publication date: October 5, 2017
    Inventors: CHANG-SING HWANG, CHUN-HUANG TSAI, CHUN-LIANG CHANG, ZONG-YANG CHUANG SHIE, SHENG-FU YANG, TE-JUNG HUANG, SHIH-WEI CHENG
  • Patent number: 9780384
    Abstract: A double-layer anode structure on a pretreated porous metal substrate and a method for fabricating the same, for improving the redox stability and decreasing the anode polarization resistance of a SOFC. The anode structure includes: a porous metal substrate of high gas permeability; a first porous anode functional layer, formed on the porous metal substrate by a high-voltage high-enthalpy Ar—He—H2—N2 atmospheric-pressure plasma spraying process; and a second porous anode functional layer, formed on the first porous anode functional layer by a high-voltage high-enthalpy Ar—He—H2—N2 atmospheric-pressure plasma spraying and hydrogen reduction. The first porous anode functional layer is composed a redox stable perovskite, the second porous anode functional layer is composed of a nanostructured cermet. The first porous anode functional layer is also used to prevent the second porous anode functional layer from being diffused by the composition elements of the porous metal substrate.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: October 3, 2017
    Assignee: INSTITUTE OF NUCLEAR ENERGY RESEARCH, ATOMIC ENERGY COUNCIL, EXECUTIVE YUAN, R.O.C.
    Inventors: Chang-Sing Hwang, Chun-Huang Tsai, Jen-Feng Yu, Chun-Liang Chang, Jun-Meng Lin, Shih-Wei Cheng
  • Patent number: 9716277
    Abstract: A high permeable porous substrate for a solid oxide fuel cell and a production method to produce the substrate are provided. The high permeable porous substrate for a solid oxide fuel cell includes a porous substrate body and a plurality of channels. The plurality of channels penetrate the first surface of the porous substrate body and does not penetrate the second surface of the porous substrate body. In addition, a production method for the high permeable porous substrate of a solid oxide fuel cell is also provided.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: July 25, 2017
    Assignee: INSTITUTE OF NUCLEAR ENERGY RESEARCH ATOMIC ENERGY COUNCIL, EXECUTIVE YUAN
    Inventors: Chang-Sing Hwang, Chun-Huang Tsai, Chun-Liang Chang, Zong-Yang Chuang Shie, Sheng-Fu Yang, Te-Jung Huang, Shih-Wei Cheng
  • Publication number: 20170125833
    Abstract: The invention provides a permeable metal substrate and its manufacturing method. The permeable metal substrate includes a substrate body and a permeable powder layer. The permeable powder layer is located on the top of the substrate body. The substrate body can be a thick substrate or formed of a thick substrate and a thin substrate that are welded together. Both the thick and thin substrates have a plurality of permeable straight gas channels. In addition, a metal-supported solid oxide fuel cell and its manufacturing method are also provided.
    Type: Application
    Filed: July 20, 2016
    Publication date: May 4, 2017
    Inventors: CHANG-SING HWANG, Chun-Huang TSAI, Chun-Liang CHANG, Zong-Yang CHUANG SHIE, Sheng-Fu YANG, Te-Jung HUANG, Ming-Hsiu WU, Jing-Kai LIN
  • Publication number: 20170069917
    Abstract: A growing method of layers for protecting metal interconnects of solid oxide fuel cells includes the steps of: processing a pre-heating or a pre-oxidation and pre-heating procedure upon a metal interconnect, providing several granulated powder groups with individual particle size distributions, selecting one of the granulated powder groups, sending granulated powders of the selected powder group into a high speed high temperature plasma flame, melting the selected granulated powders by the high speed high temperature plasma flame, impacting the metal interconnect by the melted powders with high speeds, and forming a protective layer and a middle layer on the metal interconnect, in which the middle layer is sandwiched between the protective layer and the metal interconnect.
    Type: Application
    Filed: September 8, 2015
    Publication date: March 9, 2017
    Inventors: CHANG-SING HWANG, CHUN-LIANG CHANG, CHUN-HUANG TSAI, ZONG-YANG CHUANG SHIE, SHENG-FU YANG, TE-JUNG HUANG
  • Patent number: 9496559
    Abstract: A nanostructured anode of solid oxide fuel cell with high stability and high efficiency and a method for manufacturing the same are revealed. This anode comprising a porous permeable metal substrate, a diffusion barrier layer and a nano-composite film is formed by atmospheric plasma spray. The nano-composite film includes a plurality of metal nanoparticles, a plurality of metal oxide nanoparticles, and a plurality of gas pores that are connected to form nano gas channels. The metal nanoparticles are connected to form a 3-dimensional network that conducts electrons, while the metal oxide nanoparticles are connected to form a 3-dimensional network that conducts oxygen ions. The network formed by metal oxide nanoparticles has certain strength to separate metal nanoparticles and prevent aggregation or agglomeration of the metal nanoparticles. Thus this anode can be applied to a solid oxide fuel cell operating in the intermediate temperatures (600˜800° C.) with high stability and high efficiency.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: November 15, 2016
    Assignee: Atomic Energy Council-Institute of Nuclear Energy Research
    Inventors: Chang-Sing Hwang, Chun-Liang Chang, Chih-Ming Chuang, Chun-Huang Tsai, Sheng-Hui Nien, Shih-Wei Cheng
  • Publication number: 20160167135
    Abstract: The disclosure provides a porous metal substrate structure with high gas permeability and redox stability for a SOFC and the fabrication process thereof, the porous metal substrate structure comprising: a porous metal plate composed of first metal particles; and a porous metal film composed of second metal particles and formed on the porous metal plate; wherein the porous metal plate has a thickness more than the porous metal film, and the first metal particle has a size more than the second metal particle. Further, a porous shell containing Fe is formed on the surface of each metal particle by impregnating a solution containing Fe in a high temperature sintering process of reducing or vacuum atmosphere, and the oxidation and reduction processes. The substrate uses the porous shells containing Fe particles to absorb the leakage oxygen.
    Type: Application
    Filed: June 24, 2015
    Publication date: June 16, 2016
    Inventors: Chang-Sing Hwang, Chun-Huang Tsai, Jen-Feng Yu, Chun-Liang Chang, Jun-Meng Lin, Shih-Wei Cheng
  • Publication number: 20160126559
    Abstract: The disclosure provides a high permeable porous substrate for a solid oxide fuel cell. The high permeable porous substrate for a solid oxide fuel cell includes a porous substrate body and a plurality of channels. The plurality of channels penetrate the first surface of the porous substrate body and does not penetrate the second surface of the porous substrate body. In addition, a production method for the high permeable porous substrate of a solid oxide fuel cell is also provided.
    Type: Application
    Filed: April 8, 2015
    Publication date: May 5, 2016
    Inventors: CHANG-SING HWANG, CHUN-HUANG TSAI, CHUN-LIANG CHANG, ZONG-YANG CHUANG SHIE, SHENG-FU YANG, TE-JUNG HUANG, SHIH-WEI CHENG
  • Publication number: 20160036069
    Abstract: A treatment method for solid oxide fuel cells includes: measuring a radius of curvature of a cell; measuring a surface resistance of cathode current collecting layer of a cell; performing an alcohol permeating test of a cell; performing simultaneously several stages of compression and heating or cooling to a cell; an apparatus for completing above stages is also disclosed.
    Type: Application
    Filed: October 15, 2015
    Publication date: February 4, 2016
    Inventors: CHANG-SING HWANG, CHUN-LIANG CHANG, CHUN-HUANG TSAI, SHENG-HUEI NIAN, CHIH-MING CHUANG, SHIH-WEI CHENG
  • Publication number: 20160028091
    Abstract: A nanostructured anode of solid oxide fuel cell with high stability and high efficiency and a method for manufacturing the same are revealed. This anode comprising a porous permeable metal substrate, a diffusion barrier layer and a nano-composite film is formed by atmospheric plasma spray. The nano-composite film includes a plurality of metal nanoparticles, a plurality of metal oxide nanoparticles, and a plurality of gas pores that are connected to form nano gas channels. The metal nanoparticles are connected to form a 3-dimensional network that conducts electrons, while the metal oxide nanoparticles are connected to form a 3-dimensional network that conducts oxygen ions. The network formed by metal oxide nanoparticles has certain strength to separate metal nanoparticles and prevent aggregation or agglomeration of the metal nanoparticles. Thus this anode can be applied to a solid oxide fuel cell operating in the intermediate temperatures (600˜800° C.) with high stability and high efficiency.
    Type: Application
    Filed: October 5, 2015
    Publication date: January 28, 2016
    Inventors: CHANG-SING HWANG, CHUN-LIANG CHANG, CHIH-MING CHUANG, CHUN-HUANG TSAI, SHENG-HUI NIEN, SHIH-WEI CHENG
  • Publication number: 20150349348
    Abstract: A double-layer anode structure on a pretreated porous metal substrate and a method for fabricating the same, for improving the redox stability and decreasing the anode polarization resistance of a SOFC. The anode structure includes: a porous metal substrate of high gas permeability; a first porous anode functional layer, formed on the porous metal substrate by a high-voltage high-enthalpy Ar—He—H2—N2 atmospheric-pressure plasma spraying process; and a second porous anode functional layer, formed on the first porous anode functional layer by a high-voltage high-enthalpy Ar—He—H2—N2 atmospheric-pressure plasma spraying and hydrogen reduction. The first porous anode functional layer is composed a redox stable perovskite, the second porous anode functional layer is composed of a nanostructured cermet. The first porous anode functional layer is also used to prevent the second porous anode functional layer from being diffused by the composition elements of the porous metal substrate.
    Type: Application
    Filed: August 6, 2015
    Publication date: December 3, 2015
    Inventors: Chang-Sing HWANG, Chun-Huang TSAI, Jen-Feng YU, Chun-Liang CHANG, Jun-Meng LIN, Shih-Wei CHENG
  • Patent number: 9190688
    Abstract: A treatment method for solid oxide fuel cells includes: measuring a radius of curvature of a cell; measuring a surface resistance of cathode current collecting layer of a cell; performing an alcohol permeating test of a cell; performing simultaneously several stages of compression and heating or cooling to a cell; an apparatus for completing above stages is also disclosed.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: November 17, 2015
    Assignee: INSTITUTE OF NUCLEAR ENERGY RESEARCH ATOMIC ENERGY COUNCIL, EXECUTIVE YUAN
    Inventors: Chang-Sing Hwang, Chun-Liang Chang, Chun-Huang Tsai, Sheng-Huei Nian, Chih-Ming Chuang, Shih-Wei Cheng