Patents by Inventor Chi-Chen Wu

Chi-Chen Wu 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: 11978503
    Abstract: The present disclosure relates to a method and apparatus for determining a signal margin (SM) of a memory cell, a storage medium and an electronic device, and relates to the technical field of integrated circuits. The method for determining an SM of a memory cell includes: when the memory cell performs write and read operations, determining a sense signal threshold of the memory cell under an influence of a noise; and determining, based on the sense signal threshold, an actual SM of the memory cell during data reading.
    Type: Grant
    Filed: January 21, 2022
    Date of Patent: May 7, 2024
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventors: Jian Chen, Chi-Shian Wu
  • Patent number: 11928355
    Abstract: Disclosed are a method and apparatus for determining mismatch of a sense amplifier, a storage medium, and an electronic equipment, relating to the field of integrated circuit technology. The method for determining mismatch of a sense amplifier includes: determining a first signal threshold on a first bit line when a first memory cell executes write and read operations; determining a second signal threshold on a second bit line when a second memory cell executes write and read operations; and determining, according to the first signal threshold and the second signal threshold, whether the sense amplifier is mismatched. A method for determining whether the sense amplifier is mismatched is provided.
    Type: Grant
    Filed: January 10, 2022
    Date of Patent: March 12, 2024
    Assignee: Changxin Memory Technologies, Inc.
    Inventors: Jian Chen, Chi-Shian Wu
  • Patent number: 11921430
    Abstract: A lithography method to pattern a first semiconductor wafer is disclosed. An optical mask is positioned over the first semiconductor wafer. A first region of the first semiconductor wafer is patterned by directing light from a light source through transparent regions of the optical mask. A second region of the first semiconductor wafer is patterned by directing energy from an energy source to the second region, wherein the patterning of the second region comprises direct-beam writing.
    Type: Grant
    Filed: July 25, 2022
    Date of Patent: March 5, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LIMITED
    Inventors: Tsiao-Chen Wu, Chi-Ming Yang, Hsu-Shui Liu
  • Patent number: 10879097
    Abstract: A modular pressing device capable of generating stage downward forces is provided. The modular pressing device comprises a non-exchangeable pressing module and an exchangeable pressing module. The non-exchangeable pressing module includes a first downward force generating unit. The exchangeable pressing module includes a second downward force generating unit. The first downward force generating unit applies a first downward force to at least one of a testing seat and an electronic device through the exchangeable pressing module. The second downward force generating unit applies a second downward force to the electronic device. Thereby, the modular pressing device is capable to generate two different downward forces to reduce the downward surge force. In addition, as the exchangeable pressing module is worn, the exchangeable pressing module can be replaced quickly such that the maintenance cost can be effectively reduced and the stability of the apparatus can be enhanced.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: December 29, 2020
    Assignee: CHROMA ATE INC.
    Inventors: Chi-Chen Wu, Yun-Jui Cheng, Chien-Ming Chen
  • Patent number: 10488459
    Abstract: A device for pressing an electronic component with different downward forces includes a first downward-pressure generating device, a depressing head, a second downward-pressure generating device and a depressing piston. The first downward-pressure generating device has the depressing head to apply a first downward pressure to the test socket and a portion of the electronic component. The second downward-pressure generating device has the depressing piston to apply a second downward pressure downward to another portion on the electronic component, so that the electronic component can couple electrically with a plurality of probe of the test socket. Thereupon, at least two downward-pressure generating devices are included to provide at least two different downward pressures to the electronic component solely or simultaneously to the electronic component and the testing equipment, such that specific downward-pressure requirements by precision electronic components can be fulfilled.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: November 26, 2019
    Assignee: CHROMA ATE INC.
    Inventors: Chi-Chen Wu, Meng-Kung Lu, Yun-Jui Cheng, Chien-Ming Chen
  • Publication number: 20190172740
    Abstract: A modular pressing device capable of generating stage downward forces is provided. The modular pressing device comprises a non-exchangeable pressing module and an exchangeable pressing module. The non-exchangeable pressing module includes a first downward force generating unit. The exchangeable pressing module includes a second downward force generating unit. The first downward force generating unit applies a first downward force to at least one of a testing seat and an electronic device through the exchangeable pressing module. The second downward force generating unit applies a second downward force to the electronic device. Thereby, the modular pressing device is capable to generate two different downward forces to reduce the downward surge force. In addition, as the exchangeable pressing module is worn, the exchangeable pressing module can be replaced quickly such that the maintenance cost can be effectively reduced and the stability of the apparatus can be enhanced.
    Type: Application
    Filed: February 23, 2018
    Publication date: June 6, 2019
    Inventors: Chi-Chen WU, Yun-Jui CHENG, Chien-Ming CHEN
  • Publication number: 20180292452
    Abstract: A device for pressing an electronic component with different downward forces includes a first downward-pressure generating device, a depressing head, a second downward-pressure generating device and a depressing piston. The first downward-pressure generating device has the depressing head to apply a first downward pressure to the test socket and a portion of the electronic component. The second downward-pressure generating device has the depressing piston to apply a second downward pressure downward to another portion on the electronic component, so that the electronic component can couple electrically with a plurality of probe of the test socket. Thereupon, at least two downward-pressure generating devices are included to provide at least two different downward pressures to the electronic component solely or simultaneously to the electronic component and the testing equipment, such that specific downward-pressure requirements by precision electronic components can be fulfilled.
    Type: Application
    Filed: December 14, 2017
    Publication date: October 11, 2018
    Inventors: Chi-Chen WU, Meng-Kung LU, Yun-Jui CHENG, Chien-Ming CHEN
  • Publication number: 20040141311
    Abstract: An EL Frisbee is composed of a main body and an electroluminescent device. The electroluminescent device includes at least one electroluminescent plate secured on the main body.
    Type: Application
    Filed: June 20, 2003
    Publication date: July 22, 2004
    Applicant: Chen, Chung-Jung
    Inventors: Chung-Jung Chen, Tzu-Kuei Chang, Yang-Chou Lai, Chi-Chen Wu
  • Patent number: 6721854
    Abstract: An external controller performs a thorough analysis and prediction on true requests from an application to issue a look-ahead request to an HDD or other auxiliary storage. An HDC card is connected to an HDD device which stores data and has a cache memory. The HDC card, which controls the HDD device, includes an access request tracer for tracing a true access request made by an application program executed by a host directly from the application program, a speculation request determination section for determining a speculation request to be expected later based on the traced true access request, and an HDC for issuing the determined speculation request to the HDD device.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: April 13, 2004
    Assignee: International Business Machines Corporation
    Inventors: Hideo Asano, Atsushi Kanamaru, Kelvin Kao, Akira Kibashi, Koichi Kushida, Takahiro Saito, Chi-Chen Wu, Daniel James Colegrove