Patents by Inventor WEI-CHAN WU

WEI-CHAN 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).

  • Method for manufacturing semiconductor device
    Patent number: 11923205
    Abstract: A method for manufacturing a semiconductor device includes: providing a wafer-bonding stack structure having a sidewall layer and an exposed first component layer; forming a photoresist layer on the first component layer; performing an edge trimming process to at least remove the sidewall layer; and removing the photoresist layer. In this way, contaminant particles generated from the blade during the edge trimming process may fall on the photoresist layer but not fall on the first component layer, so as to protect the first component layer from being contaminated.
    Type: Grant
    Filed: December 17, 2021
    Date of Patent: March 5, 2024
    Assignee: UNITED MICROELECTRONICS CORPORATION
    Inventors: Kun-Ju Li, Ang Chan, Hsin-Jung Liu, Wei-Xin Gao, Jhih-Yuan Chen, Chun-Han Chen, Zong-Sian Wu, Chau-Chung Hou, I-Ming Lai, Fu-Shou Tsai
  • Current mode buck-boost converter
    Patent number: 8912769
    Abstract: A current mode buck-boost converter has an input terminal, an output terminal, and an output capacitor coupled to the output terminal. The input terminal is used to receive an input voltage, and the output terminal is for producing the output voltage. The current mode buck-boost converter comprises a voltage converter and a control circuit. The voltage converter comprises an inductor. The control circuit is for detecting the current passing through the inductor to determine the electric energy transmitted to the output terminal by the voltage converter. Accordingly, the current mode buck-boost converter has fast response, and the electrical energy can be recycled and stored to the voltage source when the current mode buck-boost converter operates in down-tracking process.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: December 16, 2014
    Assignee: Energy Pass, Inc.
    Inventors: Ming-Wei Lin, Robert Yung-His Tsu, Ching Long Lin, Ke-Horng Chen, Yu-Huei Lee, Shih-Wei Wang, Wei-Chan Wu, Ping-Ching Huang
  • CURRENT MODE BUCK-BOOST CONVERTER
    Publication number: 20120274295
    Abstract: A current mode buck-boost converter has an input terminal, an output terminal, and an output capacitor coupled to the output terminal. The input terminal is used to receive an input voltage, and the output terminal is for producing the output voltage. The current mode buck-boost converter comprises a voltage converter and a control circuit. The voltage converter comprises an inductor. The control circuit is for detecting the current passing through the inductor to determine the electric energy transmitted to the output terminal by the voltage converter. Accordingly, the current mode buck-boost converter has fast response, and the electrical energy can be recycled and stored to the voltage source when the current mode buck-boost converter operates in down-tracking process.
    Type: Application
    Filed: January 20, 2012
    Publication date: November 1, 2012
    Applicant: ENERGY PASS, INC.
    Inventors: MING-WEI LIN, ROBERT YUNG-HIS TSU, CHING LONG LIN, KE-HORNG CHEN, YU-HUEI LEE, SHIH-WEI WANG, WEI-CHAN WU, PING-CHING HUANG