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:
Mar. 09, 1999
Filed:
Feb. 29, 1996
Applicant:
Inventors:
Steven Hurwitt, Park Ridge, NJ (US);
Ira Reiss, New City, NY (US);
Assignees:
Sony Corporation, Tokyo, JP;
Marerials Research Corporation, Orangeburg, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C / ;
U.S. Cl.
CPC ...
20429812 ; 20429813 ;
Abstract
A composite backing plate (34) for a backing plate-target assembly (41) having a core of structural material (36) with a front face (42) and/or a rear face (44) of a different material laminated thereto. The composite backing plate (35) has the desired mechanical properties of a solid copper backing plate, for example, strength and stiffness, but is preferably less than half the density of a solid copper backing plate. The core material is preferably aluminum; the front face is preferably copper; and the rear face is preferably either copper or an organic material.