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. 21, 2009
Filed:
Apr. 16, 2004
Henry Ho, San Jose, CA (US);
Lily L. Pang, Fremont, CA (US);
Anh N. Nguyen, Milpitas, CA (US);
Alexander N. Lerner, San Jose, CA (US);
Henry Ho, San Jose, CA (US);
Lily L. Pang, Fremont, CA (US);
Anh N. Nguyen, Milpitas, CA (US);
Alexander N. Lerner, San Jose, CA (US);
Applied Materials, Inc., Santa Clara, CA (US);
Abstract
A method and apparatus for cleaning the bevel of a semiconductor substrate. The apparatus generally includes a cell body having upstanding walls and a fluid drain basin, a rotatable vacuum chuck positioned centrally positioned in the fluid drain basin, and at least 3 substrate centering members positioned at equal radial increments around the rotatable vacuum chuck. The substrate centering members include a vertically oriented shaft having a longitudinal axis extending therethrough, a cap member positioned over an upper terminating end of the shaft, a raised central portion formed onto the cap member, the raised central portion having a maximum thickness at a location the coincides with the longitudinal axis, and a substrate centering post positioned on the cap member radially outward of the raised central portion, an upper terminating end of the substrate centering post extending from the cap member to a distance that exceeds the maximum thickness. The apparatus further includes a centering actuation mechanism in communication with the substrate centering posts, and a fluid dispensing arm pivotally connected to the cell body, the fluid dispensing arm being configured to dispense a processing fluid onto a first side of the substrate.