Patents by Inventor Nien-Show Ho

Nien-Show Ho 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 forming pattern on steel substrate by reactive ion etching
    Patent number: 5891351
    Abstract: A method for forming a pattern on a surface of a steel substrate includes the formation of a patterned mask on the surface of the steel substrate. The entire surface having the patterned mask is etched by reactive ion etching such the a pattern is formed on the surface of the steel substrate. The reactive ion etching is brought about by a plasma which is produced in an atmosphere of a chlorine-containing compound, under pressure of 1-100 mTorr, and with a radio frequency power of 100-600 W.
    Type: Grant
    Filed: August 13, 1997
    Date of Patent: April 6, 1999
    Assignee: National Science Council
    Inventors: Chih-Kung Lee, Hong-Zong Liao, Shey-Shi Lu, Nien-Show Ho