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. 25, 2003
Filed:
Jan. 30, 2001
Albert H. Liu, San Antonio, TX (US);
Nelson W. White, II, Blanco, TX (US);
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A polisher head backing film that resists slipping relative to a backing plate. In one embodiment, a polisher head backing film/backing plate assembly is provided. The backing film/backing plate assembly includes a backing film with a hole pattern as well as holding pins that protrudes from one of the film's surfaces. The backing film/backing plate assembly also includes a backing plate that has a corresponding hole pattern and receiving holes such that the hole patterns on the backing film and backing plate can be aligned. The receiving holes can receive the holding pins of the backing film such that when the hole patterns are aligned, the holding pins and the receiving holes are also aligned. The holding pins can thus be inserted into the receiving holes upon alignment such that the backing film is prevented from moving relative to the backing plate once the holding pins are properly inserted.