Patents by Inventor Zheng Chang

Zheng Chang 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).

  • PHOTO PATTERN METHOD TO INCREASE VIA ETCHING RATE
    Publication number: 20160372401
    Abstract: Semiconductor devices are provided having large vias, such as under bonding pads, to increase the via open area ratio, increase the via etching rate, and avoid inter-metal dielectric cracking and damage to the integrated circuit. The via is defined as a large open area in the inter-metal dielectric layer between an isolated conductive bottom substrate layer and a conductive top layer. Methods of manufacturing semiconductor devices with a large via are also provided.
    Type: Application
    Filed: June 16, 2015
    Publication date: December 22, 2016
    Inventors: Zheng-Chang MU, Cheng-Wei LIN, Kuang-Wen LIU
  • Reflective rear light for a truck
    Patent number: 7241019
    Abstract: A reflective rear light for a truck includes a bottom base, a light base, a circuit board, a reflective plate unit and a light lens unit. The circuit board is formed integral, provided with plural LED lights divided into plural indicting sections. Further the LED lights of all the indicating sections are matched with a reflective plate for reflecting light to reinforce the LED lights and to gain better effects.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: July 10, 2007
    Assignee: Lucidity Enterprise Co., Ltd.
    Inventors: Hsi-Hsien Tsai, Li-Chun Lin, Zheng-Chang Zheng