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:
Sep. 08, 1998
Filed:
Dec. 05, 1995
Avi Tepman, Cupertino, CA (US);
Robert E Davenport, San Jose, CA (US);
Applied Materials, Inc., Santa Clara, CA (US);
Abstract
A readily removable deposition shield assembly for processing chambers such as chemical vapor deposition (CVD), ion implantation, or physical vapor deposition (PVD) or sputtering chambers, is disclosed. The shield assembly includes a shield member which is mounted to the chamber for easy removal, such as by screws, and defines a space along the periphery of the substrate support. A shield ring is inserted into the peripheral space and is thus mounted in removable fashion and is automatically centered about the substrate. The shield ring overlaps the cylindrical shield and a deposition ring. The deposition ring removably rests upon a flange extending from the outer periphery of a substrate support pedestal. Collectively, these components prevent deposition on the chamber and hardware outside the processing region.