Patents by Inventor Hung-Ping Tsai

Hung-Ping Tsai 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: 20240130141
    Abstract: A layout pattern for magnetoresistive random access memory (MRAM) includes a substrate having a first active region, a second active region, and a word line connecting region between the first active region and the second active region, a first gate pattern extending along a first direction from the first active region to the second active region, a second gate pattern extending along the first direction from the first active region to the second active region, a first magnetic tunneling junction (MTJ) between the first gate pattern and the second pattern and within the word line connecting region, and a second MTJ between the first gate pattern and the second gate pattern in the first active region. Preferably, top surfaces of the first MTJ and the second MTJ are coplanar.
    Type: Application
    Filed: December 25, 2023
    Publication date: April 18, 2024
    Applicant: United Microelectronics Corp.
    Inventors: Ya-Huei Tsai, Rai-Min Huang, Yu-Ping Wang, Hung-Yueh Chen
  • Patent number: 8963296
    Abstract: A high power density or low forward voltage rectifier which utilizes at least one trench in both the anode and cathode. The trenches are formed in opposing surfaces of the substrate, to increase the junction surface area per unit surface area of the semiconductor die. This structure allows for increased current loads without increased horizontal die space. The increased current handling capability allows for the rectifier to operate at lower forward voltages. Furthermore, the present structure provides for increased substrate usage by up to 30 percent.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: February 24, 2015
    Assignee: Vishay General Semiconductor, LLC
    Inventors: Hung-Ping Tsai, Shih-Kuan Chen, Lung-Ching Kao
  • Publication number: 20140217561
    Abstract: A high power density or low forward voltage rectifier which utilizes at least one trench in both the anode and cathode. The trenches are formed in opposing surfaces of the substrate, to increase the junction surface area per unit surface area of the semiconductor die. This structure allows for increased current loads without increased horizontal die space. The increased current handling capability allows for the rectifier to operate at lower forward voltages. Furthermore, the present structure provides for increased substrate usage by up to 30 percent.
    Type: Application
    Filed: January 31, 2014
    Publication date: August 7, 2014
    Applicant: VISHAY GENERAL SEMICONDUCTOR, LLC
    Inventors: Hung-Ping Tsai, Shih-Kuan Chen, Lung-Ching Kao
  • Patent number: 8643152
    Abstract: A high power density or low forward voltage rectifier which utilizes at least one trench in both the anode and cathode. The trenches are formed in opposing surfaces of the substrate, to increase the junction surface area per unit surface area of the semiconductor die. This structure allows for increased current loads without increased horizontal die space. The increased current handling capability allows for the rectifier to operate at lower forward voltages. Furthermore, the present structure provides for increased substrate usage by up to 30 percent.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: February 4, 2014
    Assignee: Vishay General Semiconductor, LLC
    Inventors: Hung-Ping Tsai, Shih-Kuan Chen, Lung-Ching Kao
  • Publication number: 20120223421
    Abstract: A high power density or low forward voltage rectifier which utilizes at least one trench in both the anode and cathode. The trenches are formed in opposing surfaces of the substrate, to increase the junction surface area per unit surface area of the semiconductor die. This structure allows for increased current loads without increased horizontal die space. The increased current handling capability allows for the rectifier to operate at lower forward voltages. Furthermore, the present structure provides for increased substrate usage by up to 30 percent.
    Type: Application
    Filed: February 27, 2012
    Publication date: September 6, 2012
    Applicant: VISHAY GENERAL SEMICONDUCTOR, LLC
    Inventors: Hung-Ping Tsai, Shih-Kuan Chen, Lung-Ching Kao
  • Patent number: 8125056
    Abstract: A high power density or low forward voltage rectifier which utilizes at least one trench in both the anode and cathode. The trenches are formed in opposing surfaces of the substrate, to increase the junction surface area per unit surface area of the semiconductor die. This structure allows for increased current loads without increased horizontal die space. The increased current handling capability allows for the rectifier to operate at lower forward voltages. Furthermore, the present structure provides for increased substrate usage by up to 30 percent.
    Type: Grant
    Filed: September 23, 2009
    Date of Patent: February 28, 2012
    Assignee: Vishay General Semiconductor, LLC
    Inventors: Hung-Ping Tsai, Shih-Kuan Chen, Lung-Ching Kao
  • Publication number: 20110068439
    Abstract: A high power density or low forward voltage rectifier which utilizes at least one trench in both the anode and cathode. The trenches are formed in opposing surfaces of the substrate, to increase the junction surface area per unit surface area of the semiconductor die. This structure allows for increased current loads without increased horizontal die space. The increased current handling capability allows for the rectifier to operate at lower forward voltages. Furthermore, the present structure provides for increased substrate usage by up to 30 percent.
    Type: Application
    Filed: September 23, 2009
    Publication date: March 24, 2011
    Applicant: VISHAY GENERAL SEMICONDUCTOR, LLC.
    Inventors: Hung-Ping Tsai, Shih-Kuan Chen, Lung-Ching Kao
  • Patent number: 6291316
    Abstract: A wafer-level process for fabricating a plurality of passivated semiconductor devices comprising the steps of providing a semiconductor wafer on that at least one p-n junction is formed, Cutting a plurality of grooves in said wafer to expose said at least one p-n junction, wherein each of said grooves extends partly through the wafer and has a depth that is enough to expose said at least one p-n junction, applying a passivating material into said grooves and curing the material. The grooves can be formed by using a disc saw having a blade, by performing a sandblasting operation within a controlled operation time, or by performing a photolithographically chemical etching process. The passivating material is either screen-printed or pin-dispensed into the grooves. A dicing operation can be subsequently proceeded to divide the wafer into individual chips for subsequent fabrication into completed semiconductor devices.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: September 18, 2001
    Assignee: General Semiconductor of Taiwan, LTD
    Inventors: Christopher Michael Knowles, Yih-Yin Lin, Tung-Chieh Lin, William John Nelson, Hung-Ping Tsai, Richard Sean O'Rourke