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:
Jul. 12, 2005
Filed:
Oct. 24, 2002
Heon Lee, Sunnyvale, CA (US);
Gun-young Jung, Palo Alto, CA (US);
Heon Lee, Sunnyvale, CA (US);
Gun-Young Jung, Palo Alto, CA (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A method of forming a hardened nano-imprinting stamp is disclosed. The hardened nano-imprinting stamp includes a plurality of silicon-based nano-sized features that have an hardened shell of silicon carbide, silicon nitride, or silicon carbide nitride. The hardened shell is made harder than the underlying silicon by a plasma carburization and/or a plasma nitridation process. During the plasma process atoms of carbon and/or nitrogen bombard and penetrate a plurality of exposed surfaces of the nano-sized features and chemically react with the silicon to form the hardened shell of silicon carbide, silicon nitride, or silicon carbide nitride.