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:
May. 18, 1993
Filed:
Jul. 25, 1991
Trevor P Humphreys, Raleigh, NC (US);
Robert J Nemanich, Cary, NC (US);
Kalyankumar Das, Raleigh, NC (US);
Kobe Steel USA, Inc., New York, NY (US);
North Carolina State University, Raleigh, NC (US);
Abstract
A rectifying contact for use at high temperatures including a monocrystalline semiconducting diamond layer on a substrate and a heteroepitaxial metal layer thereon. The metal layer has a lattice match with the diamond and is deposited on the diamond substantially in atomic registry therewith. The metal and diamond form a rectifying contact which has good mechanical adhesion and provides stable rectifying operation at elevated temperatures. The metal layer may be formed by deposition in an ultra-high vacuum. In alternate embodiments, the metal layer may be formed on a monocrystalline semiconducting diamond substrate or on at least one monocrystalline diamond area of a textured polycrystalline layer.