The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 24, 2004
Filed:
Nov. 01, 2001
Bruce D. Sartwell, Columbia, MD (US);
Paul M. Natishan, Annapolis, MD (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
A method of ion implantation using oxygen backfill and a modified surface layer formed therefrom are provided. The method of ion implantation includes the steps of placing a substrate metal in an ion implantation vacuum chamber, introducing oxygen into the ion implantation vacuum chamber and directing a beam of ions at the substrate metal. The modified surface includes a substrate metal and implanted atoms at a surface of the substrate metal. The implanted atoms are integrated with the substrate metal. The substrate metal has an implanted atom concentration of at least 5 atomic % to a depth of over 250 Å.