Patents by Inventor Chi Ching

Chi Ching 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).

  • Apparatus and methods of fabricating a magneto-resistive random access memory (MRAM) device
    Patent number: 10910557
    Abstract: Methods and apparatus for forming a magnetic tunnel element are provided herein. A method of forming a magnetic tunnel element includes: depositing a magnetic layer atop a cobalt-chromium seed layer; and depositing a tunnel layer atop the magnetic layer to form a magnetic tunnel element, wherein the magnetic tunnel element has a TMR greater than 100. For example, a cobalt/platinum material or one or more layers thereof may be deposited directly atop a cobalt-chromium seed layer to produce improved devices.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: February 2, 2021
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Chi Ching, Renu Whig, Rongjun Wang
  • APPARATUS AND METHODS OF FABRICATING A MAGNETO-RESISTIVE RANDOM ACCESS MEMORY (MRAM) DEVICE
    Publication number: 20200091420
    Abstract: Methods and apparatus for forming a magnetic tunnel element are provided herein. A method of forming a magnetic tunnel element includes: depositing a magnetic layer atop a cobalt-chromium seed layer; and depositing a tunnel layer atop the magnetic layer to form a magnetic tunnel element, wherein the magnetic tunnel element has a TMR greater than 100. For example, a cobalt/platinum material or one or more layers thereof may be deposited directly atop a cobalt-chromium seed layer to produce improved devices.
    Type: Application
    Filed: September 13, 2019
    Publication date: March 19, 2020
    Inventors: CHI CHING, RENU WHIG, RONGJUN WANG
  • Cationic Oligomer of a Saccharide for Resolving Enantiomers and Asymmetric Synthesis
    Publication number: 20070225490
    Abstract: A cationic oligomer of a saccharide, wherein the saccharide is functionalized by a cationic group, for example an ammonium, phosphonium, imidazolium, or pyridinium group. In a preferred embodiment, the cationic oligomer of a saccharide is a cationic cyclodextrin. There is also provided a use of the cationic oligomer of a saccharide as a chiral agent for resolving enantiomers by a chromatographic method or an asymmetric synthesis.
    Type: Application
    Filed: December 15, 2004
    Publication date: September 27, 2007
    Applicant: SELEX SENSORS AND AIRBORNE SYSTEMS LIMITED
    Inventors: Chi Ching, David Young, I Wayan Muderawan, Teng Ong, Siu Ng