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:
Oct. 16, 2001
Filed:
Mar. 16, 2000
Salvador P. Umotoy, Antioch, CA (US);
Lawrence C. Lei, Milpitas, CA (US);
Anh N. Nguyen, Milpitas, CA (US);
Steve H. Chiao, Fremont, CA (US);
Applied Materials, Inc., Santa Clara, CA (US);
Abstract
A one-piece gas distribution faceplate for a showerhead. The one-piece gas distribution faceplate includes a first surface, a second surface, and a third surface. The one-piece gas distribution faceplate comprises a plurality of first gas holes extending through the one-piece gas distribution faceplate between the first surface and the second surface. The one-piece gas distribution faceplate has an internal gas distribution cavity defined by a plurality of interconnecting channels. A plurality of second gas holes extend through the one-piece gas distribution faceplate between the first surface into a plurality of the interconnecting channels. The interconnecting channels are fluidly coupled to a plenum that is in turn connected to at least one gas conduit. The gas conduit extends to the third surface.