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. 14, 1998
Filed:
Jul. 26, 1996
Michael R Amsden, Londonderry, VT (US);
Richard A Bartley, Newburgh, NY (US);
Cuc Huynh, Jehrico, VT (US);
Paul A Manfredi, Waterbury, VT (US);
Douglas P Nadeau, Underhill, VT (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Disc shaped cleaning/polishing pads are disclosed for use on a cleaning/polishing apparatus wherein the surface of the cleaning/polishing pad comprises resilient members arranged in patterns which will facilitate the movement of fluids (deoinized water, chemical slurry, etc.) from the center region of the pad to the periphery of the pad. Arrangement of the resilient members on the pads may be spiral, swirl, concentric or any other suitable pattern which will direct fluids to the periphery of the pad upon rotation of the pad.