Patents by Inventor Yun-Chi Wu

Yun-Chi 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).

  • Publication number: 20170278953
    Abstract: A method for manufacturing a memory device includes forming trenches in a substrate to define an active region, filling an insulation material in the trenches, treating at least one portion of the insulation material, removing an upper portion of the insulation material from the trenches, so as to expose upper portions of side surfaces of the active region and to convert remaining portions of the insulation material in the trenches to shallow trench isolation (STI) disposed on opposite sides of the active region, forming a lower oxide layer, a middle charge trapping layer, and an upper oxide layer which cover the exposed upper portions of the side surfaces of the active region, an upper surface of the active region between the side surfaces of the active region, and the STI, and forming a gate layer on the upper oxide layer.
    Type: Application
    Filed: September 14, 2016
    Publication date: September 28, 2017
    Inventors: Tsung-Yu YANG, Cheng-Bo SHU, Chung-Jen HUANG, Jing-Ru LIN, Jui-Yu PAN, Yun-Chi WU, Yueh-Chieh CHU
  • Publication number: 20170186762
    Abstract: The present disclosure relates to a method of forming an embedded flash memory cell that provides for improved performance by providing for a tunnel dielectric layer having a relatively uniform thickness, and an associated apparatus. The method is performed by forming a charge trapping dielectric structure over a logic region, a control gate region, and a select gate region within a substrate. A first charge trapping dielectric etching process is performed to form an opening in the charge trapping dielectric structure over the logic region, and a thermal gate dielectric layer is formed within the opening. A second charge trapping dielectric etching process is performed to remove the charge trapping dielectric structure over the select gate region. Gate electrodes are formed over the thermal gate dielectric layer and the charge trapping dielectric structure remaining after the second charge trapping dielectric etching process.
    Type: Application
    Filed: November 30, 2016
    Publication date: June 29, 2017
    Inventors: Jui-Yu Pan, Cheng-Bo Shu, Chung-Jen Huang, Jing-Ru Lin, Tsung-Yu Yang, Yun-Chi Wu, Yueh-Chieh Chu
  • Patent number: 7829448
    Abstract: Disclosed herein are a structure of a metal oxide semiconductor pseudomorphic high electron mobility transistor (MOS-PHEMT) suitable for use in a semiconductor device, such as a single-pole-double-throw (SPDT) switch of a monolithic microwave integrated circuit (MMIC); and a method of producing the same. The MOS-PHEMT structure is characterized in having a gate dielectric layer formed by atomic deposition from a gate dielectric selected from the group consisting of Al2O3, HfO2, La2O3, and ZrO2, and thereby rendering the semiconductor structure comprising the same, such as a high frequency switch device, to have less DC power loss, less insertion loss and better isolation.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: November 9, 2010
    Assignee: National Chiao Tung University
    Inventors: Edward Yi. Chang, Yun-Chi Wu, Yueh-Chin Lin