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. 16, 1991
Filed:
Nov. 27, 1989
Vereinigte Aluminium Werke, Bonn, DE;
Abstract
The present invention provides a composite aluminum plate suitable as a target for coating purposes, said plate comprising a surface layer melted on the basis of pure aluminum (Al.gtoreq.99.99), optionally consisting of a pure alloy, e.g., the members of which have a purity greater than or equal to 99.99%, melted on the basis of pure aluminum (Al.gtoreq.99.99); and (2) a supporting layer comprising a hardenable aluminum alloy having a Brinell hardness index HB of at least about 50 after being heat-treated under suitable conditions. This invention further provides a target suitable for physical or sputter coating processes, such as cathodic sputtering and magnetron sputtering. Methods for preparing such a plate and target are also provided.