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:
Apr. 15, 1980
Filed:
Nov. 06, 1978
Walter H Class, Yonkers, NY (US);
George J Unterkofler, Nanuet, NY (US);
Steven D Hurwitt, Park Ridge, NJ (US);
Materials Research Corporation, Orangeburg, NY (US);
Abstract
A magnetron cathode assembly for use in a cathode sputtering apparatus includes a support means for a rectangular frame-like annular target and spaced apart inner and outer pole pieces fastened to the support member and providing a rectangular annular channel for mounting the target in electrically and thermally conductive contact with the support means. Preferably, the target is a set of four straight bars shaped at the ends to assemble together as a rectangular frame. Target bars having a symmetrical hourglass cross section with overhanging flanged side portions adjacent to front and rear faces are adapted to be reversibly clamped to the support means by the inner and outer poles for simple and rapid replacement in the field, said hourglass shape providing maximum utilization of target material.