Patents by Inventor Kuan-Hua Lee

Kuan-Hua Lee 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: 11923409
    Abstract: A semiconductor device includes a source/drain feature over a semiconductor substrate, channel layers over the semiconductor substrate and connected to the source/drain feature, a gate portion between vertically adjacent channel layers, and an inner spacer between the source/drain feature and the gate portion and between adjacent channel layers. The semiconductor device further includes an air gap between the inner spacer and the source/drain feature.
    Type: Grant
    Filed: August 5, 2021
    Date of Patent: March 5, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Po-Yu Lin, Wei-Yang Lee, Chia-Pin Lin, Tzu-Hua Chiu, Kuan-Hao Cheng, Wei-Han Fan, Li-Li Su, Wei-Min Liu
  • Publication number: 20200307042
    Abstract: An injection molding apparatus including an injection device, a mold, a gas supply device, and a temperature control device is provided. The mold has a mold cavity, wherein the injection device is adapted to inject a material into the mold cavity. The gas supply device is adapted to supply a gas to the mold cavity such that the pressure in the mold cavity is increased. The temperature control device is adapted to control the temperature in the mold cavity. In addition, an injection molding method is also provided.
    Type: Application
    Filed: July 5, 2019
    Publication date: October 1, 2020
    Applicant: Chung Yuan Christian University
    Inventors: Shia-Chung Chen, Yung-Hsiang Chang, Kuan-Hua Lee, Che-Wei Chang
  • Publication number: 20200261979
    Abstract: A system for metal injection and counter pressure has: a particle providing assembly; and a forming unit having a melting module, a counter pressure module and a mold module; wherein, the particle providing assembly provides particles with metal powder and a binding agent to the melting module, the particles are formed into melted flow by the melting module, the melted flow is provided to the mold module, the counter pressure module provides a counter gas with predetermined pressure to the mold module, the melted flow forms into a green part inside of the mold module.
    Type: Application
    Filed: April 21, 2020
    Publication date: August 20, 2020
    Inventors: SHIA-CHUNG CHEN, JEN-AN CHANG, YUNG-HSIANG CHANG, KUAN-HUA LEE
  • Publication number: 20200262102
    Abstract: An injection molding apparatus including a mold, an injection device and a gas supply device is provided. The injection device is adapted to inject a ceramic powder material into the mold. The gas supply device is adapted to provide a gas into the mold to form a cavity in the ceramic powder material by the gas. In addition, an injection molding method is also provided.
    Type: Application
    Filed: February 13, 2020
    Publication date: August 20, 2020
    Applicant: Chung Yuan Christian University
    Inventors: Shia-Chung Chen, Kuan-Hua Lee, Che-Wei Chang
  • Publication number: 20200223094
    Abstract: An injection molding apparatus including a ceramic powder material injection device, a mold, and a gas providing device is provided. The ceramic powder material injection device is adapted to contain a ceramic powder material. The mold has a molding concavity, wherein the ceramic powder material injection device is adapted to inject at least the ceramic powder material into the molding concavity. The gas providing device is adapted to provide a gas into the molding concavity to increase a pressure in the molding concavity to increase a density of the ceramic powder material in the molding concavity. In addition, an injection molding method is also provided.
    Type: Application
    Filed: December 5, 2019
    Publication date: July 16, 2020
    Applicant: Chung Yuan Christian University
    Inventors: Shia-Chung Chen, Yung-Hsiang Chang, Kuan-Hua Lee, Che-Wei Chang
  • Publication number: 20200223093
    Abstract: An injection molding apparatus including a ceramic powder material injection device, a supercritical fluid providing device, and a mold is provided. The ceramic powder material injection device is adapted to contain a ceramic powder material. The supercritical fluid providing device is adapted to provide a supercritical fluid to the ceramic powder material injection device. The mold has a molding concavity, wherein the ceramic powder material injection device is adapted to mix the ceramic powder material and the supercritical fluid to form a mixed material and inject the mixed material into the molding concavity. In addition, an injection molding method is also provided.
    Type: Application
    Filed: July 16, 2019
    Publication date: July 16, 2020
    Applicant: Chung Yuan Christian University
    Inventors: Shia-Chung Chen, Kuan-Hua Lee, Che-Wei Chang
  • Publication number: 20200180195
    Abstract: An injection molding apparatus including a mold, a gas supply device, and an injection device is provided. The mold has a molding cavity. The gas supply device is adapted to supply a gas into the molding cavity to adjust a pressure in the molding cavity from a non-pressurized state to a pressurized state by the gas. The injection device is adapted to inject a material into the molding concavity. The material includes a foaming material, the foaming material is prevented from being gasified in the pressurized state, and the foaming material is gasified in the non-pressurized state. In addition, an injection molding method is also provided.
    Type: Application
    Filed: July 18, 2019
    Publication date: June 11, 2020
    Applicant: Chung Yuan Christian University
    Inventors: Shia-Chung Chen, Yung-Hsiang Chang, Kuan-Hua Lee, Che-Wei Chang
  • Publication number: 20200180200
    Abstract: An injection molding apparatus including a mold and an injection device is provided. The mold includes a fixed portion and a movable portion. A molding concavity is formed between the fixed portion and the movable portion, and the movable portion is adapted to move relative to the fixed portion to change a volume of the molding cavity, so that a pressure inside the molding concavity is adjusted between a pressurized state and a non-pressurized state. The injection device is adapted to inject a material into the molding concavity. The material includes a supercritical fluid, the supercritical fluid is prevented from being gasified in the pressurized state, and the supercritical fluid is gasified in the non-pressurized state. In addition, an injection molding method is also provided.
    Type: Application
    Filed: July 5, 2019
    Publication date: June 11, 2020
    Applicant: Chung Yuan Christian University
    Inventors: Shia-Chung Chen, Yung-Hsiang Chang, Kuan-Hua Lee, Che-Wei Chang, Pi-Lin Tsai
  • Publication number: 20190377309
    Abstract: A control system and a control method of manufacturing injection molding products are provided. The control system includes an injection molding machine, an information input interface, a computing server and a data conversion device. At first, product information is inputted through the information input interface. The product information is transmitted to the computing server, and then the computing server determines injection molding parameters according to the product information. The injection molding parameters are transmitted to the information input interface. After data conversion through the data conversion device, the injection molding machine is controlled to manufacture the injection molding products according to the converted injection molding parameters.
    Type: Application
    Filed: August 23, 2019
    Publication date: December 12, 2019
    Inventors: SHIA-CHUNG CHEN, CHIA-YEN TSENG, YUNG-HSIANG CHANG, KUAN-HUA LEE
  • Patent number: 10437205
    Abstract: A control system and a control method of manufacturing injection molding products are provided. The control system includes an injection molding machine, an information input interface, a computing server and a data conversion device. At first, product information is inputted through the information input interface. The product information is transmitted to the computing server, and then the computing server determines injection molding parameters according to the product information. The injection molding parameters are transmitted to the information input interface. After data conversion through the data conversion device, the injection molding machine is controlled to manufacture the injection molding products according to the converted injection molding parameters.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: October 8, 2019
    Assignee: CHUNG YUAN CHRISTIAN UNIVERSITY
    Inventors: Shia-Chung Chen, Chia-Yen Tseng, Yung-Hsiang Chang, Kuan-Hua Lee
  • Publication number: 20180169920
    Abstract: A molding structure comprising a first mold body, a second mold body suited for combining with the first mold body, a molding core, a first heating element, and a second heating element is provided. A mold cavity is formed between the first mold body and the second mold body when the first mold body and the second mold body are joined together. The molding core is disposed in the mold cavity, wherein the molding core comprises a body, an inner surface, and an outer surface. The first heating member is disposed through the body to heat the molding core. The second heating element is movably disposed on the outer surface of the molding core to preheat the molding core.
    Type: Application
    Filed: March 21, 2017
    Publication date: June 21, 2018
    Inventors: SHIA-CHUNG CHEN, YUNG-HSIANG CHANG, KUAN-HUA LEE, JEN-AN CHANG, YU-TSENG LIN
  • Publication number: 20170304899
    Abstract: A system for metal injection and counter pressure has: a particle providing assembly; and a forming unit having a melting module, a counter pressure module and a mold module; wherein, the particle providing assembly provides particles with metal powder and a binding agent to the melting module, the particles is formed into melted flow by the melting module, the melted flow is provided to the mold module, the counter pressure module provides a counter gas with predetermined pressure to the mold module, the melted flow forms into a green part inside of the mold module.
    Type: Application
    Filed: April 22, 2016
    Publication date: October 26, 2017
    Inventors: SHIA-CHUNG CHEN, JEN-AN CHANG, YUNG-HSIANG CHANG, KUAN-HUA LEE
  • Publication number: 20170095960
    Abstract: A control system and a control method of manufacturing injection molding products are provided. The control system includes an injection molding machine, an information input interface, a computing server and a data conversion device. At first, product information is inputted through the information input interface. The product information is transmitted to the computing server, and then the computing server determines injection molding parameters according to the product information. The injection molding parameters are transmitted to the information input interface. After data conversion through the data conversion device, the injection molding machine is controlled to manufacture the injection molding products according to the converted injection molding parameters.
    Type: Application
    Filed: October 2, 2015
    Publication date: April 6, 2017
    Inventors: SHIA-CHUNG CHEN, CHIA-YEN TSENG, YUNG-HSIANG CHANG, KUAN-HUA LEE
  • Patent number: 6916996
    Abstract: A symmetric electrical connection system for balancing impedance between a first node and a third node and impedance between a second node and a fourth node. The system includes a first conducting wire, a third conducting wire, a fifth conducting wire, and a seventh conducting wire all installed in a first layer. The system further includes a second conducting wire, a fourth conducting wire, a sixth conducting wire, and an eighth conducting wire all installed in a second layer. The first conducting wire and the eighth conducting wire are crossed but electrically insulated. The second conducting wire and the third conducting wire are crossed but electrically insulated. The fourth conducting wire and the fifth conducting wire are crossed but electrically insulated. The sixth conducting wire and the seventh conducting wire are crossed but electrically insulated. In a preferred embodiment, the appearances and the materials of the conducting wires are essentially equivalent.
    Type: Grant
    Filed: September 23, 2003
    Date of Patent: July 12, 2005
    Assignee: Realtek Semiconductor Corp.
    Inventors: Chi-Kung Kuan, Chao-Cheng Lee, Kuan-Hua Lee
  • Publication number: 20040256149
    Abstract: A symmetric electrical connection system for balancing impedance between a first node and a third node and impedance between a second node and a fourth node. The system includes a first conducting wire, a third conducting wire, a fifth conducting wire, and a seventh conducting wire all installed in a first layer. The system further includes a second conducting wire, a fourth conducting wire, a sixth conducting wire, and an eighth conducting wire all installed in a second layer. The first conducting wire and the eighth conducting wire are crossed but electrically insulated. The second conducting wire and the third conducting wire are crossed but electrically insulated. The fourth conducting wire and the fifth conducting wire are crossed but electrically insulated. The sixth conducting wire and the seventh conducting wire are crossed but electrically insulated. In a preferred embodiment, the appearances and the materials of the conducting wires are essentially equivalent.
    Type: Application
    Filed: September 23, 2003
    Publication date: December 23, 2004
    Inventors: Chi-Kung Kuan, Chao-Cheng Lee, Kuan-Hua Lee