Patents by Inventor Michael J. Prucha

Michael J. Prucha 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).

  • Patent number: 5416045
    Abstract: A method of chemical vapor depositing a titanium nitride layer on a semiconductor wafer within a chemical vapor deposition reactor includes: a) positioning a wafer within a chemical vapor deposition reactor; b) injecting gaseous TiCl.sub.4, NH.sub.3 and N.sub.2 to within the reactor; and c) maintaining the reactor at a selected pressure and a selected temperature which are effective for reacting the TiCl.sub.4 and NH.sub.3 to deposit a uniform film comprising titanium nitride on the wafer, the selected temperature being less than or equal to about 500.degree. C. With a TiN film outwardly exposed, a wafer is annealed by the sequential steps of, a) rapid thermal processing the wafer having the outwardly exposed TiN film to a temperature from about 580.degree. C. to about 700.degree. C.; b) exposing the wafer to NH.sub.3 gas at a temperature from about 580.degree. C. to about 700.degree. C.
    Type: Grant
    Filed: February 18, 1993
    Date of Patent: May 16, 1995
    Assignee: Micron Technology, Inc.
    Inventors: Ralph E. Kauffman, Michael J. Prucha, James Beck, Randhir P. S. Thakur, Annette L. Martin