Patents by Inventor Kuan-Hsiang Chen

Kuan-Hsiang Chen 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: 20250017117
    Abstract: A magnetic memory device includes a magnetic tunneling junction (MTJ) stack and a capping layer on the MTJ stack. The MTJ stack includes a reference layer, a tunneling barrier layer on the reference layer, and a free layer on the tunneling barrier layer. The capping layer includes a metal under layer that is in direct contact with the free layer, an oxide capping layer on the metal under layer, and a metal protection layer on the oxide capping layer.
    Type: Application
    Filed: August 22, 2023
    Publication date: January 9, 2025
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Kuan-Hsiang Chen, Yi-Ching Wang, Wei Chen, Chia-Fu Cheng, Chun-Yao Yang
  • Publication number: 20200168450
    Abstract: A method for fabricating interconnect of semiconductor device. The method includes providing a base substrate, having an inter-layer dielectric layer on top. A copper interconnect structure is formed in the inter-layer dielectric layer. A pre-sputter clean process is performed with hydrogen radicals on the copper interconnect structure. A degas process is sequentially performed on the copper interconnect structure. A cobalt cap layer is formed on the copper interconnect structure.
    Type: Application
    Filed: November 28, 2018
    Publication date: May 28, 2020
    Applicant: United Microelectronics Corp.
    Inventors: Ko-Wei Lin, Kuan-Hsiang Chen, Hsin-Fu Huang, Chun-Ling Lin, Sheng-Yi Su, Pei-Hsun Kao
  • Publication number: 20160359186
    Abstract: A method of direct electrochemical oxidation is provided to modify carbon felts of a flow battery. Redox reactions are used for modification. Therein, voltage is directly conducted to the cell stack. The carbon felts of the cell stack are uniformly contacted with electrolytes for processing electrochemical reactions. As a result, modification is done to generate oxygen-containing functional groups (—COOH, —OH) on surfaces of the carbon felts. Thus, the present invention has the following advantages: Operation and procedure are easy and quick. Experimental parameters and conditions can be easily regulated and replaced without dismantling a device used for modification. The device used can withstand a wide range of voltage and current. Modification effect can be obtained with low cost yet without high-temperature treatments.
    Type: Application
    Filed: June 8, 2015
    Publication date: December 8, 2016
    Inventors: Ning-Yih Hsu, Yi-Sin Chou, Heng-Wei Chiang, Yuan-Ming Chang, Kuan-Hsiang Chen, Yu-Chun Chen, Hwa-Jou Wei
  • Patent number: 9425463
    Abstract: A method is provided for producing electrodes of flow cell having high power density. A plurality of seeds are distributed on a surface of a conductive carbon material. The seeds are etched into nanoparticles to form carbon nanotube (CNT) electrodes. The present invention can be applied to vanadium redox flow cell with advantages of the CNT electrodes, such as conductivity, corrosion resistance, mechanical strength and specific and electrochemical surface area. Electrons are directly passed to the material through CNTs and then to an external electronic load for improving power density of flow cell, making a cell pack more compact and reducing energy consumption on charging and discharging without using noble metal material.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: August 23, 2016
    Assignee: INSTITUTE OF NUCLEAR ENERGY RESEARCH, ATOMIC ENERGY COUNCIL, Executive Yuan, R.O.C.
    Inventors: Ning-Yih Hsu, Yuan-Ming Chang, Kuan-Hsiang Chen, Hwa-Jou Wei, Chen-Hao Wang, Wan-Min Huang
  • Patent number: 9406962
    Abstract: A device is provided for detecting a charging and discharging status of a flow-cell pack. During charging and discharging course of the flow-cell pack coordinated with electrolyte storage tanks and actuators, ultrasonic sensors of ultrasonic detection devices are used to sense sonic vibration generated by fluid flow in the flow-cell pack. Thus, the charging and discharging status of the flow-cell pack is detected for adjusting related parameters. The present invention has a simple structure, runs without using extra power supply, does not hinder performance of flow cell, and obtains charging and discharging status of flow cell accurately and rapidly.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: August 2, 2016
    Assignee: INSTITUTE OF NUCLEAR ENERGY RESEARCH, ATOMIC ENERGY COUNCIL, Executive Yuan R.O.C.
    Inventors: Ying Sheng Lee, Ning-Yih Hsu, Kuan-Hsiang Chen, Hwa-Jou Wei
  • Publication number: 20150114924
    Abstract: A method is provided for producing electrodes of flow cell having high power density. A plurality of seeds are distributed on a surface of a conductive carbon material. The seeds are etched into nanoparticles to form carbon nanotube (CNT) electrodes. The present invention can be applied to vanadium redox flow cell with advantages of the CNT electrodes, such as conductivity, corrosion resistance, mechanical strength and specific and electrochemical surface area. Electrons are directly passed to the material through CNTs and then to an external electronic load for improving power density of flow cell, making a cell pack more compact and reducing energy consumption on charging and discharging without using noble metal material.
    Type: Application
    Filed: May 1, 2014
    Publication date: April 30, 2015
    Applicant: Institute of Nuclear Energy Research, Atomic Energy Council, Executive Yuan R.O.C.
    Inventors: Ning-Yih Hsu, Yuan-Ming Chang, Kuan-Hsiang Chen, Hwa-Jou Wei, Chen-Hao Wang, Wan-Min Huang
  • Publication number: 20150115968
    Abstract: A device is provided for detecting a charging and discharging status of a flow-cell pack. During charging and discharging course of the flow-cell pack coordinated with electrolyte storage tanks and actuators, ultrasonic sensors of ultrasonic detection devices are used to sense sonic vibration generated by fluid flow in the flow-cell pack. Thus, the charging and discharging status of the flow-cell pack is detected for adjusting related parameters. The present invention has a simple structure, runs without using extra power supply, does not hinder performance of flow cell, and obtains charging and discharging status of flow cell accurately and rapidly.
    Type: Application
    Filed: May 1, 2014
    Publication date: April 30, 2015
    Applicant: Institute of Nuclear Energy Research, Atomic Energy Council, Executive Yuan, R.O.C.
    Inventors: Ying Sheng Lee, Ning-Yih Hsu, Kuan-Hsiang Chen, Hwa-Jou Wei
  • Publication number: 20150111728
    Abstract: A honeycomb catalyst is fabricated. The catalyst is made of nano metal oxides. The catalyst is used for natural gas reforming. The present invention can be applied in related fields of fuel cells and fuel power systems. The catalyst thus fabricated can be mass-produced, obtain low resistance, enhance surface activity, reduce carbon deposition, improve product performance and prolong use life.
    Type: Application
    Filed: October 21, 2013
    Publication date: April 23, 2015
    Applicant: Institute of Nuclear Energy Research, Atomic Energy Council, Executive Yuan, R.O.C.
    Inventors: Ning-Yih Hsu, Yuan-Ming Chang, Kuan-Hsiang Chen, Ruey-Yi Lee