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:
Dec. 24, 1996
Filed:
Jun. 28, 1994
Michael J Marchywka, Lanham, MD (US);
Pehr E Pehrsson, Alexandria, VA (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
A process for making diamond and diamond products includes the steps of ianting ions in a diamond substrate to form a damaged layer of non-diamond carbon below the top surface of the substrate, heating the substrate to about 600-1200.degree. C. growing diamond on the top surface of the heated substrate by chemical vapor deposition, and electrochemically etching the damaged layer to separate the grown diamond from the substrate along the damage layer. The diamond product consists of a first diamond layer and a second diamond layer attached to the first layer. The second layer contains damage caused by ions traversing the second layer.